Geochemical, major-oxide, minor-oxide, trace-element, carbon, and rare-earth-element data from rocks collected in 2011 in the Moran area, Tanana and Melozitna Quadrangles, Alaska

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• What does this data set describe?
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What does this data set describe?

1. How should this data set be cited?

   Lough, T.A., Freeman, L.K., Newberry, R.J., Elliot, B.A., Griesel, G.A., and Szumigala, D.J., 2011, Geochemical, major-oxide, minor-oxide, trace-element, carbon, and rare-earth-element data from rocks collected in 2011 in the Moran area, Tanana and Melozitna Quadrangles, Alaska: Raw Data File RDF 2011-4 v. 2, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

   Online Links:

   • <http://dx.doi.org/10.14509/23002>

   Other_Citation_Details: 118 pp.

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -154.735482

   East_Bounding_Coordinate: -152.471008

   North_Bounding_Coordinate: 65.507439

   South_Bounding_Coordinate: 65.107451

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 17-Jun-2011

   Ending_Date: 15-Aug-2011

   Currentness_Reference: ground condition

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: tabular digital data, report

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Point data set.

   2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator

      Universal_Transverse_Mercator:

      UTM_Zone_Number: 5

      Transverse_Mercator:

      Scale_Factor_at_Central_Meridian: 0.9996

      Longitude_of_Central_Meridian: -153

      Latitude_of_Projection_Origin: 0

      False_Easting: 500000

      False_Northing: 0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 1
      Ordinates (y-coordinates) are specified to the nearest 1
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.25722210088.
      

7. How does the data set describe geographic features?

   rdf2011-4-v2-trace-element-geochemistry.csv

   Location, description, and results for rocks analyzed for trace-element geochemistry in the Moran area, Tanana and Melozitna quadrangles, Alaska (Source: Alaska Division of Geological & Geophysical Surveys)

   Sample_ID

   Unique sample identifier (Source: Alaska Division of Geological & Geophysical Surveys)

   Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'BAE' = Brent Elliott; 'GG' = Gerry Griesel; 'LF' = Larry Freeman; 'RN' = Rainer Newberry; 'Z' = David Szumigala. "^" denotes samples that were in the batch where the results for the DGGS standard fell outside one standard deviation of its known composition; mineralized samples were rerun for gold.

   Latitude

   Latitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	65.107451
   Maximum:	65.507439
   Units:	decimal degrees

   Longitude

   Longitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	-154.735482
   Maximum:	-152.484123
   Units:	decimal degrees

   Easting

   Easting, UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	418494
   Maximum:	524021
   Units:	meters

   Northing

   Northing, UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	7221357
   Maximum:	7264835
   Units:	meters

   UTM_Zone

   UTM Zone 05N (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   5N	UTM Zone 05N for all samples in this data set

   Field_Call

   Lithology assigned to sample in the field based on apparent mineralogy and texture (Source: Alaska Division of Geological & Geophysical Surveys)

   lithology

   Lithology_Description

   First 254 characters of brief rock description for the sample (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 1 to 254 of brief rock description

   Extension1_Lithology_Description

   Extension of brief rock description for descriptions greater than 254 characters in length (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   ---	Null value; Lithology description does not exceed 254 characters

   Characters 255 to 508 of brief rock description

   Extension2_Lithology_Description

   Extension of brief rock description for descriptions greater than 508 characters in length (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   ---	Null value; Lithology description does not exceed 508 characters

   Characters 509 to 762 of brief rock description

   Extension3_Lithology_Description

   Extension of brief rock description for descriptions greater than 762 characters in length (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   ---	Null value; Lithology description does not exceed 762 characters

   Characters 763 to 1016 of brief rock description

   Au_ppm

   Gold values acquired by analysis with inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP-AES) and shown in parts per million (ppm). Lower detection limit = 0.001; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.001 ppm
   -2	Above upper detection limit of 10 ppm

   Range of values
   Minimum:	0.001
   Maximum:	9.29
   Units:	ppm

   Au_ppm_2

   Duplicate gold values acquired by analysis with inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP-AES) and shown in parts per million (ppm). Lower detection limit = 0.001; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. This procedure was run on mineralized samples in the same batch as the a DGGS standard whose original FA-ICP-AES analysis results were greater than one standard deviation from its known composition. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	0.002
   Maximum:	9.29
   Units:	ppm

   Au_ppm_3

   Gold values acquired by a 30g traditional fire assay fusion with a gravimetric finish (FA-GRAV) and shown in parts per million (ppm). This procedure was done on any samples that had greater than detection limit (10 ppm Au) on the original FA-ICP-AES analysis. Lower detection limit = 0.05; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	22.3
   Maximum:	22.3
   Units:	ppm

   Ag_ppm

   Silver values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 0.5; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.5 ppm

   Range of values
   Minimum:	0.5
   Maximum:	22.3
   Units:	ppm

   Al_pct

   Aluminum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Lower detection limit = 0.01; upper detection limit = 50. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.01
   Maximum:	9.69
   Units:	%

   As_ppm

   Arsenic values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 5 ppm
   -2	Above upper detection limit of 10000 ppm

   Range of values
   Minimum:	5
   Maximum:	3340
   Units:	ppm

   As_pct

   Arsenic values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after high-grade, four-acid digestion, and shown in % (percent). Lower detection limit = 0.01; upper detection limit = 30. These indicate the minimum and maximum concentrations that can be accurately determined.This procedure was done on any samples that had greater than detection limit (5 ppm As) on the original FA-ICP-AES analysis (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	0.985
   Maximum:	1.805
   Units:	%

   Ba_ppm

   Barium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on sample mineralogy, may result in lower analytical results. Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	6710
   Units:	ppm

   Be_ppm

   Beryllium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Lower detection limit = 0.5; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.5 ppm

   Range of values
   Minimum:	0.5
   Maximum:	142.5
   Units:	ppm

   Bi_ppm

   Bismuth values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	2
   Maximum:	996
   Units:	ppm

   Ca_pct

   Calcium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Lower detection limit = 0.01; upper detection limit = 50. These indicate the minimum and maximum concentrations that can be accurately determined.. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01%

   Range of values
   Minimum:	0.01
   Maximum:	27.3
   Units:	%

   Cd_ppm

   Cadmium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 0.5; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.5 ppm

   Range of values
   Minimum:	0.5
   Maximum:	19.1
   Units:	ppm

   Co_ppm

   Cobalt values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	166
   Units:	ppm

   Cr_ppm

   Chromium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	3
   Maximum:	1680
   Units:	ppm

   Cu_ppm

   Copper values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four acid-digestion and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	1
   Maximum:	1090
   Units:	ppm

   Fe_pct

   Iron values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Lower detection limit = 0.01; upper detection limit = 50. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.55
   Maximum:	48.4
   Units:	%

   Ga_ppm

   Gallium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and after four-acid digestion shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	40
   Units:	ppm

   K_pct

   Potassium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Lower detection limit = 0.01; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of .01 %

   Range of values
   Minimum:	0.01
   Maximum:	5.57
   Units:	%

   La_ppm

   Lanthanum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	80
   Units:	ppm

   Mg_pct

   Magnesium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Lower detection limit = 0.01; upper detection limit = 50. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	22.4
   Units:	%

   Mn_ppm

   Manganese values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 5; upper detection limit = 100000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	27
   Maximum:	28300
   Units:	ppm

   Mo_ppm

   Molybdenum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	853
   Units:	ppm

   Na_pct

   Sodium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Lower detection limit = 0.01; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of .01%

   Range of values
   Minimum:	0.01
   Maximum:	7.4
   Units:	%

   Ni_ppm

   Nickel values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	1810
   Units:	ppm

   P_ppm

   Phosphorus values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -2	Above upper detection limit of 10000 ppm

   Range of values
   Minimum:	10
   Maximum:	8900
   Units:	ppm

   P_ppm_2

   Phosphorus values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after high-grade, four-acid digestion and shown in parts per million (ppm). This procedure was done on any samples that had greater than detection limit (10000 ppm P) on the original FA-ICP-AES analysis. Lower detection limit = 50; upper detection limit = 100000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	9990
   Maximum:	22800
   Units:	ppm

   Pb_ppm

   Lead values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined.. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	2
   Maximum:	8760
   Units:	ppm

   Pd_ppm

   Palladium values acquired by analysis with inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP-AES) and shown in parts per million (ppm). Lower detection limit = 0.001; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	0.002
   Maximum:	0.025
   Units:	ppm

   Pt_ppm

   Platinum values acquired by analysis with inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP-AES) and shown in parts per million (ppm). Lower detection limit = 0.005; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.005 ppm
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	0.01
   Maximum:	0.037
   Units:	ppm

   S_pct

   Sulfur values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Lower detection limit = 0.01; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	3.75
   Units:	%

   Sb_ppm

   Antimony values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 5 ppm

   Range of values
   Minimum:	5
   Maximum:	94
   Units:	ppm

   Sc_ppm

   Scandium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	50
   Units:	ppm

   Sn_ppm

   Tin values acquired by analysis with pressed-pellet wavelength dispersive X-ray fluorescence in parts per million (ppm). Lower detection limit = 5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 5 ppm
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	5
   Maximum:	743
   Units:	ppm

   Sr_ppm

   Strontium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	3160
   Units:	ppm

   Th_ppm

   Thorium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 20; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex)

   Value	Definition
   -1	Below detection limit of 20 ppm

   Range of values
   Minimum:	20
   Maximum:	70
   Units:	ppm

   Ti_pct

   Titanium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in percent (%). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Lower detection limit = 0.01; upper detection limit = 10. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	1.93
   Units:	%

   Tl_ppm

   Thallium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	10
   Units:	ppm

   U_ppm

   Uranium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	30
   Units:	ppm

   V_ppm

   Vanadium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	552
   Units:	ppm

   W_ppm

   Tungsten values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	4590
   Units:	ppm

   W_ppm_2

   Tungsten values acquired by analysis with pressed-pellet wavelength dispersive X-ray fluorescence in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	10
   Maximum:	8960
   Units:	ppm

   Zn_ppm

   Zinc values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after four-acid digestion and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 2 ppm
   -2	Above upper detection limit of 10000 ppm

   Range of values
   Minimum:	2
   Maximum:	2630
   Units:	ppm

   Zn_pct

   Zinc values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) after high-grade, four-acid digestion and shown in weight percent (%). Lower detection limit = 0.001; upper detection limit = 30. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	4.97
   Maximum:	4.97
   Units:	%

   rdf2011-4-v2-whole-rock-geochemistry.csv

   Location, description, and results of rocks collected for major-oxide, minor-oxide, and trace-element analyses in the in the Moran area, Tanana and Melozitna quadrangles, Alaska. (Source: Alaska Division of Geological & Geophysical Surveys)

   Sample_ID

   Unique sample identifier (Source: Alaska Division of Geological & Geophysical Surveys)

   Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'BAE' = Brent Elliott; 'LF' = Larry Freeman; 'GG' = Gerry Griesel; 'TL' = Trevelyn Lough; 'RN' = Rainer Newberry; 'Z' = David Szumigala.

   Latitude

   Latitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	65.180341
   Maximum:	65.504351
   Units:	decimal degrees

   Longitude

   Longitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	-153.892286
   Maximum:	-152.498255
   Units:	decimal degrees

   Easting

   Easting, UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	458216
   Maximum:	523259
   Units:	meters

   Northing

   Northing,UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	7228654
   Maximum:	7264520
   Units:	meters

   UTM_Zone

   UTM Zone 05N (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   5N	UTM Zone 05N for all samples in this data set

   Field_Call

   Lithology assigned to sample in the field based on apparent mineralogy and texture (Source: Alaska Division of Geological & Geophysical Surveys)

   lithology

   Root_name

   Lithology derived from textures in hand sample as well as normative mineralogy determined from whole-rock geochemistry. (Source: Alaska Division of Geological & Geophysical Surveys)

   lithology

   Lithology_Description

   First part of brief rock description (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 1 to 254 of brief rock description

   Extension1_Lithology_Description

   Extension of brief rock description for descriptions greater than 254 characters in length (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 255 to 508 of brief rock description

   Extension2_Lithology_Description

   Extension of brief rock description for descriptions greater than 508 characters in length (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 509 to 762 of brief rock description

   SiO2_pct

   SiO2 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	40.73
   Maximum:	85.76
   Units:	%

   Al2O3_pct

   Al2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	1.83
   Maximum:	15.74
   Units:	%

   Fe2O3_pct

   Fe2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. Total iron is expressed as Fe2O3. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.71
   Maximum:	18.89
   Units:	%

   CaO_pct

   CaO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.02
   Maximum:	15.11
   Units:	%

   MgO_pct

   MgO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.06
   Maximum:	35.8
   Units:	%

   Na2O_pct

   Na2O values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.02
   Maximum:	4.5
   Units:	%

   K2O_pct

   K2O values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.01
   Maximum:	6.5
   Units:	%

   Cr2O3_pct

   Cr2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	0.36
   Units:	%

   TiO2_pct

   TiO2 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	3.65
   Units:	%

   MnO_pct

   MnO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	0.28
   Units:	%

   P2O5_pct

   P2O5 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.01
   Maximum:	0.411
   Units:	%

   SrO_pct

   SrO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	0.04
   Units:	%

   BaO_pct

   BaO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.01 %

   Range of values
   Minimum:	0.01
   Maximum:	0.14
   Units:	%

   LOI_pct

   Loss on ignition (LOI) values expressing loss of mass determined by gravimetric measurement after heating to 1000 degrees Celsius and shown in percent. Lower detection limit = 0.01; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.31
   Maximum:	11.55
   Units:	%

   Total_pct

   Calculated total for oxides in sample. Shown in percent. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	98.17
   Maximum:	100.2
   Units:	%

   Ba_ppm

   Barium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	10
   Maximum:	1180
   Units:	ppm

   Cr_ppm

   Chromium values acquired by analysis with x-ray fluorescence spectrometry (XRF)on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 5; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	7
   Maximum:	2440
   Units:	ppm

   Nb_ppm

   Niobium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	2
   Maximum:	85
   Units:	ppm

   Ni_ppm

   Nickle values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 15,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   -1	Below detection limit of 10 ppm
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	30
   Maximum:	2050
   Units:	ppm

   Rb_ppm

   Rubidium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	2
   Maximum:	979
   Units:	ppm

   Sr_ppm

   Strontium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Range of values
   Minimum:	2
   Maximum:	341
   Units:	ppm

   Th_ppm

   Thorium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 4; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   -1	Below detection limit of 4 ppm
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	5
   Maximum:	101
   Units:	ppm

   U_ppm

   Uranium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 4; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   -1	Below detection limit of 4 ppm
   ---	Null value; element not analyzed by this method

   Range of values
   Minimum:	4
   Maximum:	49
   Units:	ppm

   Y_ppm

   Yttrium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Range of values
   Minimum:	2
   Maximum:	298
   Units:	ppm

   Zr_ppm

   Zirconium values acquired by analysis with x-ray fluorescence spectrometry (XRF) on a pressed-pellet and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	16
   Maximum:	382
   Units:	ppm

   rdf2011-4-v2-non-carbonate-carbon-geochemistry.csv

   Location, description, and analyses of rocks collected for Non-carbonate-carbon analyses in the Moran area, Tanana and Melozitna quadrangles, Alaska. (Source: Alaska Division of Geological & Geophysical Surveys)

   Sample_ID

   Unique sample identifier (Source: Alaska Division of Geological & Geophysical Surveys)

   Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'LF' = Larry Freeman; 'Z' = David Szumigala.

   Latitude

   Latitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	65.336904
   Maximum:	65.375371
   Units:	decimal degrees

   Longitude

   Longitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	-152.799444
   Maximum:	-152.484123
   Units:	decimal degrees

   Easting

   Easting for UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	509325
   Maximum:	524021
   Units:	meters

   Northing

   Northing for UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	7245909
   Maximum:	7250113
   Units:	meters

   UTM_Zone

   UTM Zone 05N (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   5N	UTM Zone 05N for all samples in this data set

   Field_Call

   Lithology assigned to sample in the field based on apparent mineralogy and texture (Source: Alaska Division of Geological & Geophysical Surveys)

   lithology

   Lithology_Description

   First 254 characters of brief rock description for the sample location (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 1 to 254 of brief rock description

   Extension1_Lithology_Description

   Extension of brief rock description for descriptions greater than 254 characters in length (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 255 to 508 of brief rock description

   C_pct

   Non-carbonate carbon values acquired by analysis using induction furnace pyrolysis following dilute acid digestionand shown in percent (%). (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Lower detection limit = 0.01; upper detection limit = 50. These indicate the minimum and maximum concentrations that can be accurately determined.)

   Range of values
   Minimum:	0.03
   Maximum:	0.62
   Units:	%

   rdf2011-4-v2-slab-xrf-geochemistry.csv

   Location, description, and results for rocks collected for major-oxide, minor-oxide, and trace-element analyses in the Moran area, Tanana and Melozitna quadrangle, Alaska. Analyses were conducted on polished rock slabs. Because volatile components were not measured and rocks were of varying porosities, the analyses were normalized to 100 percent totals. (Source: Alaska Division of Geological & Geophysical Surveys)

   Sample_ID

   Unique sample identifier (Source: Alaska Division of Geological & Geophysical Surveys)

   Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'BAE' = Brent Elliott; 'LF' = Larry Freeman; 'GG' = Gerry Griesel; 'TL' = Trevelyn Lough; 'RN' = Rainer Newberry; 'Z' = David Szumigala.

   Latitude

   Latitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	65.176060
   Maximum:	65.507034
   Units:	decimal degrees

   Longitude

   Longitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	-154.574853
   Maximum:	-152.471008
   Units:	decimal degrees

   Easting

   Easting for UTM zone 5N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	426345
   Maximum:	524607
   Units:	meters

   Northing

   Northing for UTM zone 5N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	7228116
   Maximum:	7264778
   Units:	meters

   UTM_Zone

   UTM Zone 05N (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   5N	UTM Zone 05N for all samples in this data set

   Root_Name

   Lithology derived from geochemical data and rock textures in hand sample. (Source: Alaska Division of Geological & Geophysical Surveys)

   Lithology; (?) indicates uncertainty

   Comments

   Analyses were conducted on polished rock slabs. Remarks in the Comments column indicate that the quality of the analysis is lower than average/normal. (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   ---	Null value; indicates that the quality of the analysis is average/normal.

   Brief comments that describe the rock texture and slab quality are defined as follows: 'Altered' = sample is altered, 'Inhomogeneous' = sample contains crystals or clasts > 3 mm and/or a texture such as banding or boxwork, 'Poor polish' = sample has a poor polish, 'Porous' = sample is porous, 'Small' = sample is smaller than the 37-mm-diameter sample holder and a 27-mm sample holder was used instead.

   SiO2_pct

   SiO2 values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.1; upper detection limit = 100. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Range of values
   Minimum:	13.6
   Maximum:	98.2
   Units:	%

   Al2O3_pct

   Al2O3 values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.05; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Range of values
   Minimum:	0.9
   Maximum:	30.3
   Units:	%

   BaO_pct

   BaO values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.03; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 0.03 %

   Range of values
   Minimum:	0
   Maximum:	0.599
   Units:	%

   CaO_pct

   CaO values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.02; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Range of values
   Minimum:	0.0342
   Maximum:	46.6
   Units:	%

   FeO_pct

   FeO values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Total iron is expressed as Fe2O3. Lower detection limit = 0.03; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Range of values
   Minimum:	0.133
   Maximum:	37.5
   Units:	%

   K2O_pct

   K2O values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.02; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 0.02 %

   Range of values
   Minimum:	0.02
   Maximum:	6.8
   Units:	%

   MgO_pct

   MgO values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.05; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 0.05 %

   Range of values
   Minimum:	0.0531
   Maximum:	39.3
   Units:	%

   MnO_pct

   MnO values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.03; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 0.03 %

   Range of values
   Minimum:	0.0303
   Maximum:	0.32
   Units:	%

   Na2O_pct

   Na2O values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.02; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Range of values
   Minimum:	0.0234
   Maximum:	10.8
   Units:	%

   P2O5_pct

   P2O5 values acquired by acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.03; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 0.03 %

   Range of values
   Minimum:	0.0301
   Maximum:	2.1
   Units:	%

   TiO2_pct

   TiO2 values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.02; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 0.02 %

   Range of values
   Minimum:	0.0209
   Maximum:	4.81
   Units:	%

   CO2_pct

   CO2 values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in percent. Lower detection limit = 0.05; upper detection limit = 75. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 0.05 %

   Range of values
   Minimum:	4
   Maximum:	37
   Units:	%

   Total_pct

   Sum of oxides; oxides are normalized to 100 percent. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Range of values
   Minimum:	97.8793
   Maximum:	100.0456
   Units:	%

   As_ppm

   Arsenic values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 4; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 4

   Range of values
   Minimum:	4
   Maximum:	3510
   Units:	ppm

   Bi_ppm

   Bismuth values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	3.1
   Maximum:	3.1
   Units:	ppm

   Br_ppm

   Bromine values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 5; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 5 ppm

   Range of values
   Minimum:	14
   Maximum:	14
   Units:	ppm

   Ce_ppm

   Cerium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 60; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 60 ppm

   Range of values
   Minimum:	63
   Maximum:	567
   Units:	ppm

   Cl_ppm

   Chlorine values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 50; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 50 ppm

   Range of values
   Minimum:	50
   Maximum:	4900
   Units:	ppm

   Co_ppm

   Cobalt values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	231
   Units:	ppm

   Cr_ppm

   Chromium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 30; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 30 ppm

   Range of values
   Minimum:	30
   Maximum:	3910
   Units:	ppm

   Cu_ppm

   Copper values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 7; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 7 ppm

   Range of values
   Minimum:	7
   Maximum:	826
   Units:	ppm

   F_ppm

   Fluorine values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 110; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 110 ppm

   Range of values
   Minimum:	110
   Maximum:	9900
   Units:	ppm

   La_ppm

   Lanthanum values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 50; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 50 ppm

   Range of values
   Minimum:	165
   Maximum:	279
   Units:	ppm

   Mo_ppm

   Molybdenum values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	4
   Maximum:	4
   Units:	ppm

   Nb_ppm

   Niobium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	5
   Maximum:	29
   Units:	ppm

   Nb_ppm_2

   Niobium values acquired by X-ray fluorescence spectrometry (XRF) using the 37mmRbSrYZ analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm
   ---	Null value; sample not analyzed using this analytical routine

   Range of values
   Minimum:	1
   Maximum:	76
   Units:	ppm

   Ni_ppm

   Nickle values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 7; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 7 ppm

   Range of values
   Minimum:	7
   Maximum:	3020
   Units:	ppm

   Pb_ppm

   Lead values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 4; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 4 ppm

   Range of values
   Minimum:	9
   Maximum:	660
   Units:	ppm

   Rb_ppm

   Rubidium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	6
   Maximum:	317
   Units:	ppm

   Rb_ppm_2

   Rubidium values acquired by X-ray fluorescence spectrometry (XRF) using the 37mmRbSrYZ analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm
   ---	Null value; sample not analyzed using this analytical routine

   Range of values
   Minimum:	1
   Maximum:	1554
   Units:	ppm

   S_ppm

   Sulfur values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 30; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 30 ppm

   Range of values
   Minimum:	30
   Maximum:	8110
   Units:	ppm

   Sb_ppm

   Antimony values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	3
   Maximum:	3
   Units:	ppm

   Sn_ppm

   Tin values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 4; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 4 ppm

   Range of values
   Minimum:	6
   Maximum:	366
   Units:	ppm

   Sr_ppm

   Strontium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	5
   Maximum:	1690
   Units:	ppm

   Sr_ppm_2

   Strontium values acquired by X-ray fluorescence spectrometry (XRF) using the 37mmRbSrYZ analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   ---	Null value; sample not analyzed using this analytical routine

   Range of values
   Minimum:	2
   Maximum:	1240
   Units:	ppm

   Th_ppm

   Thorium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	2
   Maximum:	37
   Units:	ppm

   U_ppm

   Uranium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	31
   Units:	ppm

   V_ppm

   Vanadium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 25; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 25 ppm

   Range of values
   Minimum:	28
   Maximum:	980
   Units:	ppm

   W_ppm

   Tungsten values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 8; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 8 ppm

   Range of values
   Minimum:	15.6
   Maximum:	56
   Units:	ppm

   Y_ppm

   Yttrium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	2
   Maximum:	105
   Units:	ppm

   Y_ppm_2

   Yttrium values acquired by X-ray fluorescence spectrometry (XRF) using the 37mmRbSrYZ analytical routine and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 1 ppm
   ---	Null value; sample not analyzed using this analytical routine

   Range of values
   Minimum:	1
   Maximum:	450
   Units:	ppm

   Zn_ppm

   Zinc values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). Lower detection limit = 8; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 8 ppm

   Range of values
   Minimum:	9
   Maximum:	734
   Units:	ppm

   Zr_ppm

   Zirconium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 9

   Range of values
   Minimum:	9
   Maximum:	319
   Units:	ppm

   Zr_ppm_2

   Zirconium values acquired by X-ray fluorescence spectrometry (XRF) using the 37mmRbSrYZ analytical routine and shown in parts per million (ppm). Lower detection limit = 9; upper detection limit = 750,000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.)

   Value	Definition
   -1	Below detection limit of 9 ppm
   ---	Null value; sample not analyzed by this analytical routine

   Range of values
   Minimum:	11
   Maximum:	650
   Units:	ppm

   rdf2011-4-v2-rare-earth-geochemistry.csv

   Location, description, and results for rocks analyzed for rare-earth-element analyses in the in the Moran area, Tanana and Melozitna quadrangles, Alaska. (Source: Alaska Division of Geological & Geophysical Surveys)

   Sample_ID

   Unique sample identifier (Source: Alaska Division of Geological & Geophysical Surveys)

   Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'BAE' = Brent Elliott; 'LF' = Larry Freeman; 'GG' = Gerry Griesel; 'RN' = Rainer Newberry; 'Z' = David Szumigala.

   Latitude

   Latitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	65.180341
   Maximum:	65.504351
   Units:	decimal degrees

   Longitude

   Longitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	-153.888678
   Maximum:	-152.502041
   Units:	decimal degrees

   Easting

   Easting, UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	458375
   Maximum:	523081
   Units:	meters

   Northing

   Northing,UTM zone 05N, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

   Range of values
   Minimum:	7228654
   Maximum:	7264520
   Units:	meters

   UTM_Zone

   UTM Zone 05N (Source: Alaska Division of Geological & Geophysical Surveys)

   Value	Definition
   5N	UTM Zone 05N for all samples in this data set

   Field_Call

   Lithology assigned to sample in the field based on apparent mineralogy and texture (Source: Alaska Division of Geological & Geophysical Surveys)

   lithology

   Root_name

   Lithology derived from textures in hand sample as well as normative mineralogy determined from whole-rock geochemistry. (Source: Alaska Division of Geological & Geophysical Surveys)

   lithology

   Lithology_Description

   First part of brief rock description (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 1 to 254 of brief rock description

   Extension1_Lithology_Description

   Extension of brief rock description for descriptions greater than 254 characters in length (Source: Alaska Division of Geological & Geophysical Surveys)

   Characters 255 to 508 of brief rock description

   Ba_ppm

   Barium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	10.8
   Maximum:	1370
   Units:	ppm

   Ce_ppm

   Cerium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	4.6
   Maximum:	200
   Units:	ppm

   Co_ppm

   Cobalt values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Possibly incomplete digestion for this element; results will not likely be quantitative. Lower detection limit = 0.5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.5 ppm

   Range of values
   Minimum:	0.5
   Maximum:	104.5
   Units:	ppm

   Cr_ppm

   Chromium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 10; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 10 ppm

   Range of values
   Minimum:	10
   Maximum:	2610
   Units:	ppm

   Cs_ppm

   Cesium values acquired by analysis with lithium metaborate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.01; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.06
   Maximum:	30.7
   Units:	ppm

   Dy_ppm

   Dysprosium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.05; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	1.36
   Maximum:	11.95
   Units:	ppm

   Er_ppm

   Erbium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.03; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.72
   Maximum:	8.89
   Units:	ppm

   Eu_ppm

   Europium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.03; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.03 ppm

   Range of values
   Minimum:	0.05
   Maximum:	2.08
   Units:	ppm

   Ga_ppm

   Gallium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.1; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	5.9
   Maximum:	33.8
   Units:	ppm

   Gd_ppm

   Gadolinium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.1; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	1.3
   Maximum:	10.1
   Units:	ppm

   Hf_ppm

   Hafnium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.7
   Maximum:	9.8
   Units:	ppm

   Ho_ppm

   Holmium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.01; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.26
   Maximum:	2.46
   Units:	ppm

   La_ppm

   Lanthanum values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	1.9
   Maximum:	102.5
   Units:	ppm

   Lu_ppm

   Lutetium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.01; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.09
   Maximum:	2.4
   Units:	ppm

   Mo_ppm

   Molybdenum values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Possibly incomplete digestion for this element; results will not likely be quantitative. Lower detection limit = 2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 2 ppm

   Range of values
   Minimum:	83
   Maximum:	83
   Units:	ppm

   Nb_ppm

   Niobium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.7
   Maximum:	64.2
   Units:	ppm

   Nd_ppm

   Neodymium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.1; upper detection limit = 100000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	3.8
   Maximum:	80.9
   Units:	ppm

   Pr_ppm

   Praseodymium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.03; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.8
   Maximum:	22.6
   Units:	ppm

   Rb_ppm

   Rubidium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.6
   Maximum:	1000
   Units:	ppm

   Sm_ppm

   Samarium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.03; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	1.15
   Maximum:	12.9
   Units:	ppm

   Sn_ppm

   Tin values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 1 ppm

   Range of values
   Minimum:	1
   Maximum:	65
   Units:	ppm

   Sr_ppm

   Strontium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	6.7
   Maximum:	368
   Units:	ppm

   Ta_ppm

   Tantalum values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.1
   Maximum:	37.5
   Units:	ppm

   Tb_ppm

   Terbium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.1; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.21
   Maximum:	1.63
   Units:	ppm

   Th_ppm

   Thorium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.05; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.06
   Maximum:	70.3
   Units:	ppm

   Tl_ppm

   Thallium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.5; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 0.5 ppm

   Range of values
   Minimum:	0.6
   Maximum:	4.8
   Units:	ppm

   Tm_ppm

   Thulium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.01; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.1
   Maximum:	1.64
   Units:	ppm

   U_ppm

   Uranium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.05; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.05
   Maximum:	31.3
   Units:	ppm

   V_ppm

   vanadium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 5 ppm

   Range of values
   Minimum:	5
   Maximum:	1020
   Units:	ppm

   W_ppm

   Tungsten values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 1; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Value	Definition
   -1	Below detection limit of 5 ppm

   Range of values
   Minimum:	1
   Maximum:	18
   Units:	ppm

   Y_ppm

   Yttrium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.5; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	6.8
   Maximum:	141
   Units:	ppm

   Yb_ppm

   Ytterbium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 0.03; upper detection limit = 1000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	0.63
   Maximum:	14.9
   Units:	ppm

   Zr_ppm

   Zirconium values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS) and shown in parts per million (ppm). Lower detection limit = 2; upper detection limit = 10000. These indicate the minimum and maximum concentrations that can be accurately determined. (Source: Alaska Division of Geological & Geophysical Surveys and ALS Chemex.)

   Range of values
   Minimum:	23
   Maximum:	412
   Units:	ppm

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Lough, T.A.
   • Freeman, L.K.
   • Newberry, R.J.
   • Elliot, B.A.
   • Griesel, G.A.
   • Szumigala, D.J.

2. Who also contributed to the data set?

   This project is part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program funded by the Alaska State Legislature and managed by State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. Partial funding for the geologic mapping and geochemical analyses was also provided through the U.S. Geological Survey STATEMAP Program under award number G11AC20203 and the Alaska State General Fund.

3. To whom should users address questions about the data?

Why was the data set created?

The analyses in this report were acquired as part of a geologic mapping program, the purpose of which is to provide 1:63,360-scale geologic mapping of the Moran airborne geophysical survey released by DGGS in 2010 (Burns et al., 2010). The geophysical survey (helicopter-based aeromagnetic and electromagnetic data) and geologic mapping are part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program, a special multi-year investment by the State of Alaska to expand Alaska's geologic and mineral resources knowledge base, catalyze future private-sector mineral exploration and development, and guide state resource development planning.

How was the data set created?

1. From what previous works were the data drawn?

2. How were the data generated, processed, and modified?

   Date: 2011 (process 1 of 16)

   Fieldwork for trace-element samples - Rock samples of visibly mineralized rock, or rock exhibiting features associated with mineralization, were preferentially collected and analyzed for geochemical trace elements. Spatially these rocks were collected randomly. Occasionally rocks exhibiting a specific feature were selectively collected and these instances were noted in the sample description.

   Date: 2011 (process 2 of 16)

   Fieldwork for whole-rock samples - Rock samples for whole-rock analyses at ALS Chemex (major-oxide, minor-oxide, and trace-element analyses) were collected to determine 1) bulk rock composition of igneous and meta-igneous lithologies, or 2) the tectonic setting of a sample’s protolith based on petrogenetically important trace elements. Unweathered or minimally weathered rock samples were preferentially selected for analysis.

   Date: 2011 (process 3 of 16)

   Fieldwork for non-carbonate-carbon samples - Rock samples of visibly carbonaceous or graphitic metamorphic rock were preferentially collected and analyzed for non-carbonate carbon content. Spatially these rocks were collected randomly. Unweathered or minimally weathered rock samples were preferentially selected for analysis.

   Date: 2011 (process 4 of 16)

   Fieldwork for slab-XRF samples - Rock samples for whole-rock analyses (major-oxide, minor-oxide, and trace element analyses) by XRF at UAF were collected to determine 1) bulk rock composition of igneous and meta-igneous lithologies, or 2) the tectonic setting of a sample’s protolith based on petrogenetically important trace elements. Samples for slab-XRF analysis typically had grain sizes less than 3mm. Spatially these rocks were collected randomly.

   Date: 2011 (process 5 of 16)

   Fieldwork for rare-earth-element samples - Plutonic and metamorphic samples for rare-earth-element analyses (major-oxide, minor-oxide, and trace element analyses) were selected from the samples analyzed for whole-rock geochemistry. These samples were selected based on sample quality (unweathered) and location (random distribution across study area).

   Date: 2011 (process 6 of 16)

   Trace-element sample preparation - Preparation for samples analyzed by ALS Chemex was conducted at the ALS Chemex sample preparation facility. Rock samples were crushed with a Terminator oscillating jaw crusher with chrome steel alloy plates so that at least 70 percent of the material passed through a -10 mesh (2 mm) screen. Representative aliquots of 250 grams each were taken using a stainless steel riffle splitter. These samples were then pulverized in an Essa ring mill bowl and pucks made of Essa’s Standard Steel alloy so that 85 percent of the sample passed through a -200 mesh (75 micron) screen. Trace-element analyses and non-carbonate-carbon analyses were performed using representative splits of each 250 gram pulp.

   Date: 2011 (process 7 of 16)

   Whole-rock sample preparation - Rocks with a weathering rind were trimmed at DGGS with a tile saw prior to sample preparation at the ALS laboratory where they were prepared using the same methods and equipment as the trace-element samples. Whole-rock analyses were performed using representative splits of the resulting 250g pulp.

   Date: 2011 (process 8 of 16)

   Non-carbonate-carbon sample preparation - Samples were prepared using the same methods and equipment as the trace-element samples; the Non-carbonate-carbon analyses were performed using representative splits of the resulting 250g pulp.

   Date: 2011 (process 9 of 16)

   Slab-XRF sample preparation - Preparation for samples analyzed by the University of Alaska Fairbanks (UAF) were cut into slabs at DGGS or UAF with a tile saw to fit in 37-mm-diameter sample holders. These slabs were then polished in the UAF Advanced Instrumentation Laboratory with an Ameritool Universal Heavy-Duty Grinder and Polishing Machine using first a 60-mesh diamond disk and finished with a 180-mesh diamond disk. Notable samples (for example, clast or grain size greater than ~3 mm, sample size less than 37 mm, or inhomogeneities) are described in the geochemical layer “Comments” column.

   Date: 2011 (process 10 of 16)

   Rare-earth-element sample preparation - Samples were prepared using the same methods and equipment as the trace-element samples; the rare-earth-element analyses were performed using representative splits of the resulting 250g pulp.

   Date: 2011 (process 11 of 16)

   Trace-element analysis - All potentially mineralized samples were assayed for gold by inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP-AES). Platinum and palladium were assayed for selected samples by FA-ICP-AES. Trace-element geochemical analyses were performed by inductive coupled plasma-atomic emission spectroscopy (ICP-AES) methods after four-acid, near-total digestion. This method of digestion is possibly incomplete for some elements and may result in lower analytical results for these elements. Analytical methods, lower and upper detection limits, and the elements that may be affected by incomplete digestion are noted in the attribute definition. Rock samples with trace-metal values above the detection limit in the initial trace-element geochemical analysis were reanalyzed for those metals by the following methods: gold, fire assay with a gravimetric finish using a 30g sub-sample (FA-GRAV); Phosphorus, by ICP-AES methods after high-grade four-acid, near-total digestion; and arsenic and/or zinc by ICP-AES methods after high-grade four-acid, near-total digestion. Analytical methods and detection limits are noted in the attribute definition

   Date: 2011 (process 12 of 16)

   Whole-rock analysis - Major and minor-element oxides were determined at ALS Chemex by X-ray fluorescence (XRF) spectrometry following a lithium borate fusion (LBM-XRF). Trace-element values for Cr, Nb, Ni, Rb, Sr, Y, and Zr were determined for mafic rocks by XRF on a pressed pellet. Trace-element values for Ba, Nb, Rb, Sr, Th, U, Y, and Zr were determined for felsic rocks by XRF on a pressed pellet. Analytical methods and detection limits are noted in the attribute definition.

   Date: 2010 (process 13 of 16)

   Non-carbonate-carbon analysis - Non-carbonate-carbon analyses were performed by ALS Chemex. Non-carbonate-carbon content was determined using a LECO furnace after a dilute acid digestion. The lower detection limit for non-carbonate carbon is 0.01 percent, and the upper detection limit is 50.00 percent.

   Date: 2011 (process 14 of 16)

   Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using SuperQ’s 37mmRbSrYZr routine software program; other elements were measured with the IQ+37mmVac software program. The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards. These procedures are routinely checked by analysis of secondary natural standards that were not employed in making the calibration curves. Elemental abundances are typically within 2-5% of the amount present for concentrations > 10 times the detection limit, within 5-10% of the amount present for concentrations 4-10 times the detection limit and within 30% of the amount present for concentrations near the detection limit. The IQ37mm Vac scans over a series of energies corresponding to a range from Ce-K? to O-K?. Peak heights and backgrounds, and X-Ray elemental interferences are picked with the software and checked manually to ensure quality control. Elemental abundances for all elements with atomic numbers between 8 and 92 are estimated from artificial standards and these estimations are used to calculate MACs for each element present above the detection limit. Revised concentrations are employed to calculate revised MACs until a stable solution is determined. Elemental abundances are then normalized to 100%. The software is routinely checked using pressed pellets of well-characterized natural rock standards. Elemental abundances are within 1-2% of the amount present for major elements, 2-5% of the amount present for minor elements, and 5-10% of the amount present for trace elements.

   Date: 2011 (process 15 of 16)

   Rare-earth-element analysis - values acquired by analysis with lithium meta-borate fusion and inductively coupled plasma - mass spectroscopy (LBF-ICP-MS). Analytical methods and detection limits are noted in the attribute definition.

   Date: 2011 (process 16 of 16)

   Other - Latitude and Longitude values were converted from UTM values by re-projecting the UTM coordinates with the "project" tool in the "data management" toolbox in ArcGIS Desktop 10.0 using ArcMap 10.0. After re-projecting the UTM coordinates, latitude and longitude were calculated with "Calculate Geometry" tool in the attribute table. Some accuracy may be lost in this conversion. In instances where analytical results fell outside the detection limits reported by the ALS Chemex, values were changed to "greater than detection limit" or "less than detection limit." In instances where detection limits reported in the ALS Chemex Schedule of Services and Fees differed from the detection limits reported in their Short Method Descriptions, the later values were documented in this report.

3. What similar or related data should the user be aware of?

   Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2010, Line, grid, and vector data, and maps for the airborne geophysical survey of the Moran Survey Area, Melozitna and Tanana quadrangles, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report GPR 2010-1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, AK.

   Online Links:

   • <http://dx.doi.org/10.14509/20561>

   Other_Citation_Details:

   2 linedata files, 19 grids, 20 GeoTIFFs and Google Earth KMZ files, 15 vector files, and 28 maps (56 sheets total)

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?

   All major-oxide, minor-oxide, and trace-element geochemical analyses were performed by ALS Chemex, except for those performed on polished rock slabs by the University of Alaska Fairbanks (UAF). Analytical methods and detection limits are listed in attribute definitions. This information is also described in the report text. In addition to ALS Chemex’s own internal quality control program, DGGS monitored analysis quality by inserting one sample of known composition into the sample roster for every 20-sample batch. For the trace-element geochemical analyses, the results of one DGGS-standard sample differs from its known composition by more than one standard deviation; all samples in this 20-sample batch are noted in the trace-element-geochemistry layer by a carat next to the Sample_ID, and mineralized samples were re-run for gold by FA-ICP-AES; repeat values of the standard are within acceptable range. Procedures used by the University of Alaska Fairbanks are routinely checked using well-characterized standards, which are described further in this metadata file under the "Lineage" portion of the 'Data_Quality_Information" section.

2. How accurate are the geographic locations?

   Location data were downloaded from Garmin eTrex Legend HCx GPS units into a Microsoft 2007 Access database with a minimum error of 1 meter, a maximum error of 9 meters, and an average error of 3 meters.

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   This dataset contains all of the analyses for trace-element geochemistry, whole-rock (major- and minor-oxide, and trace-element) geochemistry, non-carbonate-carbon geochemistry, and rare-earth-element geochemistry analyses complete at the time of publication for rock samples collected in 2011 by DGGS in the Moran area project, but excludes rocks collected in 2011 by DGGS from core that Doyon Drilling, Inc. drilled in the Moran project area between 2007 and 2009.

5. How consistent are the relationships among the observations, including topology?

   No topologic relationships are present in data.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:

This dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).

Use_Constraints:

Any hard copies or published datasets utilizing this dataset shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the requestor or anyone else exceed the fee paid for the electronic service or product.

1. Who distributes the data set? (Distributor 1 of 1)
   State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
   3354 College Road
   Fairbanks, AK 99709-3707
   USA
   

   907-451-5020 (voice)
   907-451-5050 (FAX)
   dggspubs@alaska.gov
   

   Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays

   Contact_Instructions:

   Please view our web site (<http://www.dggs.alaska.gov>) for the latest information on available data. Please contact us using the e-mail address provided above when possible.

2. What's the catalog number I need to order this data set?

   RDF 2011-4 v. 2

3. What legal disclaimers am I supposed to read?

   The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product.

4. How can I download or order the data?
   • Availability in non-digital form:

     DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Turn around time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount.

   • Cost to order the data: <http://dx.doi.org/10.14509/23002>

   • Availability in digital form:

     Data format:	CSV
     Network links:	<http://dx.doi.org/10.14509/23002>

   • Cost to order the data: Free download

Who wrote the metadata?

Dates:

Last modified: 06-Mar-2012

Metadata author:

State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
c/o Metadata Manager
3354 College Road
Fairbanks, AK 99709-3707
USA

907-451-5020 (voice)
907-451-5050 (FAX)
dggspubs@alaska.gov

Hours_of_Service:

8:00 am to 4:30 pm, Monday through Friday, except State holidays.

Metadata standard:

FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

• <http://www.dggs.alaska.gov/metadata/dggs.ext>