Reanalysis of historical U.S. Geological Survey sediment samples for geochemical data from the western part of the Wrangellia terrane, Anchorage, Gulkana, Healy, Mt. Hayes, Nabesna, and Talkeetna Mountains 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?

   Werdon, M.B., Azain, J.S., and Granitto, Matthew, 2014, Reanalysis of historical U.S. Geological Survey sediment samples for geochemical data from the western part of the Wrangellia terrane, Anchorage, Gulkana, Healy, Mt. Hayes, Nabesna, and Talkeetna Mountains quadrangles, Alaska: Raw Data File RDF 2014-5, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

   Online Links:

   • <http://dx.doi.org/10.14509/27287>

   Other_Citation_Details: 6 p.

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -149.864720

   East_Bounding_Coordinate: -143.502780

   North_Bounding_Coordinate: 63.387220

   South_Bounding_Coordinate: 61.900830

3. What does it look like?

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

   Calendar_Date: 2014

   Currentness_Reference: ground condition

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

   Geospatial_Data_Presentation_Form: 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?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0001. Longitudes are given to the nearest 0.0001. Latitude and longitude values are specified in decimal degrees.

      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 6378206.4.
      The flattening of the ellipsoid used is 1/294.9786982.
      

7. How does the data set describe geographic features?

   rdf2014-5-border.shp

   Outline of the study area. (Source: Alaska Division of Geological & Geophysical Surveys)

   rdf2014-5-sed-trace-element.xlsx, rdf2014-5-sed-trace-element-limits.csv

   Trace-element geochemical analysis of sediment samples. (Source: Alaska Division of Geological & Geophysical Surveys and U.S. Geological Survey)

   FIELD_ID

   Label assigned by the originating scientist or agency (Source: Granitto, Matthew and others, 2013)

   A comprehensive list of references and original data sources can be found in the accompanying report.

   BATCH_NUMBER

   Number provided by the laboratory to identify the samples included in the work order. (Source: SGS Minerals Services)

   The batch numbers assigned by the lab for these results are: MRP-13704, MRP-13706, MRP-13708, MRP-13710, MRP-13712, MRP-13714, MRP-13716, MRP-13718, MRP-13720, MRP-13722, MRP-13724, MRP-13726, MRP-13728, MRP-13730, MRP-13732, MRP-13734, MRP-13736, MRP-13738, MRP-13740, MRP-13742, MRP-13744, MRP-13746, MRP-13748, MRP-13750, MRP-13752, MRP-13754, MRP-13756, MRP-13758, MRP-13760, MRP-13762, MRP-13764, MRP-13766, MRP-13768, MRP-13770, and MRP-13772

   USGS_DATABASE_ID

   Label assigned in Alaska Geochemical Database Version 2.0 to uniquely identify each sample (Source: Granitto, Matthew and others, 2013)

   Free text

   LAB_SAMPLE_NUMBER

   Label used by the lab to identify the sample. (Source: SGS Minerals Services)

   The sample numbers used by the lab differ from the published sample numbers. We provide both numbers to document the sample number that was listed on the Certificate of Assay

   DESCRIPTION

   Description of the sample (Source: Granitto, Matthew and others, 2013)

   Value	Definition
   NULL	All samples are sediment samples. Unless otherwise noted in the table, no further description is available.

   Characters 1 to 254 of a brief sample or station description.

   LATITUDE

   Latitude, NAD27 (Source: Granitto, Matthew and others, 2013)

   Range of values
   Minimum:	61.90083
   Maximum:	63.38722
   Units:	decimal degrees

   LONGITUDE

   Longitude, NAD27 (Source: Granitto, Matthew and others, 2013)

   Range of values
   Minimum:	-149.86472
   Maximum:	-143.50278
   Units:	decimal degrees

   SAMPLE_SOU

   Type of environment from which the sample was collected. (Source: Granitto, Matthew and others, 2013)

   The sample environments: stream and glacial debris/deposit

   PRIMARY_CL

   Type of material that was sampled. (Source: Granitto, Matthew and others, 2013)

   All samples in this release were originally sediment samples

   Au_ppb

   Gold values measured in parts per billion); Method: Fire Assay - Inductively Coupled Plasma - Mass Spectrometry (FA-ICP-MS); Lower detection limit = 1 parts per billion; Upper detection limit = 10000 parts per billion; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.
   NULL	Blank (NULL) field values indicate that this chemical species was not requested or not analyzed.

   Range of values
   Minimum:	1
   Maximum:	1770
   Units:	parts per billion

   Pd_ppb

   Palladium values measured in parts per billion); Method: Fire Assay - Inductively Coupled Plasma - Mass Spectrometry (FA-ICP-MS); Lower detection limit = 1 parts per billion; Upper detection limit = 10000 parts per billion; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.
   NULL	Blank (NULL) field values indicate that this chemical species was not requested or not analyzed.

   Range of values
   Minimum:	1
   Maximum:	43
   Units:	parts per billion

   Pt_ppb

   Platinum values measured in parts per billion); Method: Fire Assay - Inductively Coupled Plasma - Mass Spectrometry (FA-ICP-MS); Lower detection limit = 0.5 parts per billion; Upper detection limit = 10000 parts per billion; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.
   NULL	Blank (NULL) field values indicate that this chemical species was not requested or not analyzed.

   Range of values
   Minimum:	0.5
   Maximum:	72.0
   Units:	parts per billion

   Al_pct

   Aluminum values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.01 percent; Upper detection limit = 25 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	1.52
   Maximum:	11.0
   Units:	percent

   Ca_pct

   Calcium values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 percent; Upper detection limit = 40 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.1
   Maximum:	12.2
   Units:	percent

   Fe_pct

   Iron values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.01 percent; Upper detection limit = 50 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.98
   Maximum:	35.7
   Units:	percent

   K_pct

   Potassium values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 percent; Upper detection limit = 25 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	0.1
   Maximum:	3.9
   Units:	percent

   Mg_pct

   Magnesium values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.01 percent; Upper detection limit = 30 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.06
   Maximum:	16.7
   Units:	percent

   Mn_pct

   Manganese values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.001 percent; Upper detection limit = 10 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.021
   Maximum:	0.580
   Units:	percent

   P_pct

   Phosphorus values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.01 percent; Upper detection limit = 0.25 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	0.01
   Maximum:	0.52
   Units:	percent

   Ti_pct

   Titanium values measured in percent); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.01 percent; Upper detection limit = 25 percent; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.07
   Maximum:	2.11
   Units:	percent

   Ag_ppm

   Silver values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	-3
   Maximum:	21
   Units:	parts per million

   As_ppm

   Arsenic values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 30 parts per million; Upper detection limit = 100000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	30
   Maximum:	2030
   Units:	parts per million

   Ba_ppm

   Barium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.5 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	25.8
   Maximum:	5790
   Units:	parts per million

   Be_ppm

   Beryllium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 5 parts per million; Upper detection limit = 2500 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	7
   Maximum:	29
   Units:	parts per million

   Bi_ppm

   Bismuth values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	0.1
   Maximum:	29.0
   Units:	parts per million

   Cd_ppm

   Cadmium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.2 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	-3
   Maximum:	8.8
   Units:	parts per million

   Ce_ppm

   Cerium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	4.9
   Maximum:	257
   Units:	parts per million

   Co_ppm

   Cobalt values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.5 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.8
   Maximum:	155
   Units:	parts per million

   Cr_ppm

   Chromium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 10 parts per million; Upper detection limit = 100000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	10
   Maximum:	19800
   Units:	parts per million

   Cs_ppm

   Cesium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.1
   Maximum:	34.0
   Units:	parts per million

   Cu_ppm

   Copper values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 5 parts per million; Upper detection limit = 50000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	7
   Maximum:	4570
   Units:	parts per million

   Dy_ppm

   Dysprosium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	1.10
   Maximum:	193
   Units:	parts per million

   Er_ppm

   Erbium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.62
   Maximum:	200
   Units:	parts per million

   Eu_ppm

   Europium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.27
   Maximum:	3.51
   Units:	parts per million

   Ga_ppm

   Gallium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 1 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	4
   Maximum:	26
   Units:	parts per million

   Gd_ppm

   Gadolinium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.94
   Maximum:	78.5
   Units:	parts per million

   Ge_ppm

   Germanium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 1 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	1
   Maximum:	6
   Units:	parts per million

   Hf_ppm

   Hafnium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	1
   Maximum:	2120
   Units:	parts per million

   Ho_ppm

   Holmium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.22
   Maximum:	46.8
   Units:	parts per million

   In_ppm

   Indium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.2 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	0.6
   Maximum:	32.0
   Units:	parts per million

   La_ppm

   Lanthanum values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	2.0
   Maximum:	129
   Units:	parts per million

   Li_ppm

   Lithium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 10 parts per million; Upper detection limit = 50000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	10
   Maximum:	100
   Units:	parts per million

   Lu_ppm

   Lutetium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.08
   Maximum:	73.8
   Units:	parts per million

   Mo_ppm

   Molybdenum values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 2 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	2
   Maximum:	52
   Units:	parts per million

   Nb_ppm

   Niobium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.
   -2	Above detection limit.

   Range of values
   Minimum:	1
   Maximum:	34
   Units:	parts per million

   Nb_ppm_1

   Niobium values measured in parts per million); Method: X-Ray Fluorescence (XRF); Lower detection limit = 100 parts per million; Upper detection limit = 1000000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   NULL	Blank (NULL) field values indicate that this chemical species was not requested or not analyzed.

   Range of values
   Minimum:	67300
   Maximum:	67300
   Units:	parts per million

   Nd_ppm

   Neodymium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	3.1
   Maximum:	124
   Units:	parts per million

   Ni_ppm

   Nickel values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 5 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	5
   Maximum:	1950
   Units:	parts per million

   Pb_ppm

   Lead values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 5 parts per million; Upper detection limit = 50000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	5
   Maximum:	351
   Units:	parts per million

   Pr_ppm

   Praseodymium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.74
   Maximum:	32.4
   Units:	parts per million

   Rb_ppm

   Rubidium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.2 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	1.7
   Maximum:	181
   Units:	parts per million

   Sb_ppm

   Antimony values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 500 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	0.1
   Maximum:	42.5
   Units:	parts per million

   Sc_ppm

   Scandium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 5 parts per million; Upper detection limit = 50000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	5
   Maximum:	79
   Units:	parts per million

   Sm_ppm

   Samarium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.7
   Maximum:	50.9
   Units:	parts per million

   Sn_ppm

   Tin values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	1
   Maximum:	2170
   Units:	parts per million

   Sr_ppm

   Strontium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	48.9
   Maximum:	1380
   Units:	parts per million

   Ta_ppm

   Tantalum values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.5 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	0.5
   Maximum:	3690
   Units:	parts per million

   Tb_ppm

   Terbium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.18
   Maximum:	22.9
   Units:	parts per million

   Th_ppm

   Thorium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -2	Above detection limit.

   Range of values
   Minimum:	0.2
   Maximum:	48.2
   Units:	parts per million

   Th_ppm_1

   Thorium values measured in parts per million); Method: X-Ray Fluorescence (XRF); Lower detection limit = 100 parts per million; Upper detection limit = 1000000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   NULL	Blank (NULL) field values indicate that this chemical species was not requested or not analyzed.

   Range of values
   Minimum:	2900
   Maximum:	2900
   Units:	parts per million

   Tl_ppm

   Thallium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.5 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	0.5
   Maximum:	2.4
   Units:	parts per million

   Tm_ppm

   Thulium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.09
   Maximum:	44.8
   Units:	parts per million

   U_ppm

   Uranium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.05 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.13
   Maximum:	321
   Units:	parts per million

   V_ppm

   Vanadium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 5 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	25
   Maximum:	1040
   Units:	parts per million

   W_ppm

   Tungsten values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 1 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.

   Range of values
   Minimum:	1
   Maximum:	220
   Units:	parts per million

   Y_ppm

   Yttrium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.5 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	6.3
   Maximum:	1940
   Units:	parts per million

   Yb_ppm

   Ytterbium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.1 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	0.6
   Maximum:	412
   Units:	parts per million

   Zn_ppm

   Zinc values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 5 parts per million; Upper detection limit = 50000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Range of values
   Minimum:	19
   Maximum:	834
   Units:	parts per million

   Zr_ppm

   Zirconium values measured in parts per million); Method: Inductively Coupled Plasma - Atomic Emission Spectroscopy - Mass Spectrometry (ICP-AES-MS), Sodium Peroxide Sinter; Lower detection limit = 0.5 parts per million; Upper detection limit = 10000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -2	Above detection limit.

   Range of values
   Minimum:	16.7
   Maximum:	1810
   Units:	parts per million

   Zr_ppm_1

   Zirconium values measured in parts per million); Method: X-Ray Fluorescence (XRF); Lower detection limit = 100 parts per million; Upper detection limit = 1000000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   NULL	Blank (NULL) field values indicate that this chemical species was not requested or not analyzed.

   Range of values
   Minimum:	27600
   Maximum:	27600
   Units:	parts per million

   Te_ppm

   Tellurium values measured in parts per million); Method: Hydride Generation Atomic Absorption Spectrometry (HGAAS), Multi-Acid Digestion and Hydride Generation; Lower detection limit = 0.5 parts per million; Upper detection limit = 1000 parts per million; Detection limits indicate the minimum and maximum concentrations that can be accurately determined. (Source: SGS Minerals Services)

   Value	Definition
   -1	Below detection limit.
   NULL	Blank (NULL) field values indicate that this chemical species was not requested or not analyzed.

   Range of values
   Minimum:	0.5
   Maximum:	12.8
   Units:	parts per million

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Werdon, M.B.
   • Azain, J.S.
   • Granitto, Matthew

2. Who also contributed to the data set?

   We appreciate the help of the following people: Timothy Hayes and Coleen Chaney in writing the Technical Assistance Agreement for this project; David Fey for technical assistance with the geochemical data; and Jeff Mauk and Bronwen Wang for reviewing this report and associated digital tables. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

3. To whom should users address questions about the data?
   Alaska Division of Geological & Geophysical Surveys
   GIS Manager
   3354 College Road
   Fairbanks, AK 99709-3707
   USA
   

   (907)451-5020 (voice)
   dggsgis@alaska.gov
   

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

Why was the data set created?

The State of Alaska's Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska's statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data. For the geochemical part of the SCM Assessment, thousands of historical geochemical samples from DGGS, U.S. Geological Survey (USGS), and U.S. Bureau of Mines archives are being reanalyzed by DGGS using modern, quantitative, geochemical-analytical methods. The objective is to update the statewide geochemical database to more clearly identify areas in Alaska with SCM potential.

How was the data set created?

1. From what previous works were the data drawn?

   Granitto, Matthew and others, 2013 (source 1 of 1)

   Granitto, Matthew, Schmidt, J.M., Shew, N.B., Gamble, B.M., and Labay, K.A., 2013, Alaska Geochemical Database, Version 2.0 (AGDB2) --including "best value" data compilations for rock, sediment, soil, mineral, and concentrate sample media: Data Series DS 759, U.S. Geological Survey, United States.

   Online Links:

   • <http://www.dggs.alaska.gov/pubs/id/25219>
   • <http://pubs.usgs.gov/ds/759/>

   Type_of_Source_Media: database

   Source_Contribution: location coordinates

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

   Date: 2012 (process 1 of 6)

   Location coordinates - Original locations were collected with NAD27 datum and Clarke 1866 spheroid prior to 2000, but some of the samples (after 2000) were collected in other projections. DGGS converted the coordinates for these samples to NAD27 datum and Clarke 1866 spheroid using appropriate transformations in ArcGIS; original location information is documented in Granitto and others (2013).

   Data sources used in this process:

   • Granitto, Matthew and others, 2013

   Date: 2012 (process 2 of 6)

   Sample preparation - Historical sediment samples were retrieved from the National Geochemical Sample Archive (NGSA) in Denver, Colorado, by USGS staff, then weighed, ground to -200 mesh and, where sufficient material was available, split into aliquots needed for analyses. Leftover material was re-archived at the NGSA. Sample splits were submitted to the USGS contract lab (SGS Minerals Services, Lakefield, Canada) for analysis.

   Date: 2012 (process 3 of 6)

   Method 20: Gold (Au), Platinum (Pt), and Palladium (Pd) - Gold, Pt, and Pd content were determined in geologic materials by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) after collection by fire assay. An assay ton (30 grams) was weighed into a crucible with 150 grams of flux and mixed. One mg of silver nitrate was added and covered with borax, and then placed in the furnace for 45 minutes at 1,080 degrees CC. The melt was poured into a cast-iron mold, cooled, and hammered to free the lead button from the slag. The lead button was placed on a cupel and heated at 950 degrees C until all the lead was removed. The resulting dore' bead was dissolved in a mixture of nitric acid and hydrochloric acid and heated in a water bath. The final solution was adjusted to 10 ml and introduced into the ICP-MS. The lower reporting limits are 1 ppb for Au and Pd, and 0.5 ppb for Pt. The upper limit for all elements is 10,000 ppb. Data were deemed acceptable if recovery of gold, platinum, and palladium was +/- 20 percent at five times the lower limit of detection (LOD) and the calculated Relative Standard Deviation (RSD) of duplicate samples was no greater than 20 percent.

   Date: 2012 (process 4 of 6)

   Method 22: 55-Element ICP-AES-MS sodium peroxide sinter - Fifty-five major (except Si and Na), rare-earth, and trace elements were determined in geologic materials by inductively coupled plasma-atomic emission spectrometry (ICP-AES) and ICP-MS. The 0.10 g sample was decomposed using a sodium-peroxide sinter at 450 degrees C. The resultant cake was leached with water for a minimum of 4 hours, and acidified with nitric acid. After an addition of tartaric acid, aliquots of the digested sample were aspirated into the ICP-AES and the ICP-MS. The concentrations of the optimal elements from the ICP-AES and ICP-MS were determined. Calibration on the ICP-AES was performed by standardizing with digested rock reference materials and a series of multi-element solution standards. The ICP-MS was calibrated with aqueous standards, and internal standards were used to compensate for matrix effects and internal drifts. Reporting limits for the 55 elements are presented in the tables accompanying this report. Data were deemed acceptable if recovery for all 55 elements was +/-15 percent at five times the lower LOD and the calculated RSD of duplicate samples was no greater than 15 percent.

   Date: 2012 (process 5 of 6)

   Method 13: Tellurium (Te) - Tellurium content was determined by weighing 0.25 g of sample into a Teflon tube, adding a mixture of nitric, hydrofluoric, and perchloric acids and heating the sample. After the solution cooled, hydrochloric and nitric acids were added, and the sample was heated again, and then cooled. The samples were diluted and analyzed using hydride-generation atomic absorption spectrometry with an auto-analyzer and automated data collection system from Labtronics. The lower reporting limit for Te is 0.1 ppm and the upper detection limit is 1,000 ppm. Data for Te were deemed acceptable if recovery of that element was +/- 20 percent at five times the lower LOD and the calculated RSD of duplicate samples was no greater than 20 percent.

   Date: 2012 (process 6 of 6)

   Method 15: XRF Major Element Analysis - For this study, Method 15 was applied to niobium (Nb), thorium (Th), and zirconium (Zr), when results were higher than the upper detection limit by Method 22. This occurred in only one sample: Lab No. C-382999/Field No. 68ASB1103). Niobium, Th, and Zr were determined on sediment sample pulps by wavelength dispersive X-ray fluorescence spectrometry (WDXRF). The sample was fused with 50/50 lithium metaborate-lithium tetraborate flux and the resultant glass disk was introduced into a wavelength dispersive X-ray spectrometer. The disk was irradiated by a Rhodium X-ray tube. X-ray photons emitted by the elements in the sample were counted and concentrations determined using previously prepared calibration curves. Calibration curves for each element (in typical major-element analyses) were derived from a variety (about 40) of international reference materials (National Institute of Standards and Technology, USA [NIST], U.S. Geological Survey [USGS], Canada Center for Mineral and Energy Technology [CANMET], National Institute for Metallurgy, South Africa [NIM]) and a number of synthetic standards to extend the range for certain elements. The standards cover a wide range of geologic materials, biased toward igneous rock types. Unusual rock compositions may require a special calibration. The lower detection limit for Nb, Th, and Zr is 0.01 percent, and the upper detection limit is 100 percent. Data for Nb, Th, and Zr were deemed acceptable if recovery of the elements was +/- 5 percent at the lower LOD and the calculated RSD of duplicate samples was no greater than 5 percent. The SGS lab reports major-element oxides in percentages, so Nb, Th, and Zr values were converted from oxide to elemental concentrations.

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

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

1. How well have the observations been checked?

   The 1,682 Alaska sediment samples of interest were collected as part of several projects between 1964 and 2001. Details of initial sample collection and analytical methods for these historical samples have been compiled into a single digital database, AGDB2 (Granitto and others, 2013). The original analyses for most of these samples were previously published, and the citations for the original results are included in the References and Original Data Sources section of the accompanying report. Analytical results obtained from samples submitted to the contract laboratory (SGS) must pass through two levels of data validation. The first level of quality control checks occurs at SGS Minerals Services. SGS is accredited to ISO/IEC 17025:2005 standards and conforms to requirements of CAN-P-4E and CAN-P-1579 (Standards Council of Canada, 2014). The laboratory's quality control protocol is to insert a reagent blank and a reference sample material with every batch of 20 samples to measure the analytical accuracy. Duplicate samples are analyzed at the end of the sample set to measure analytical variance as well as sample variance. Data passing the quality control criteria are sent to the USGS and imported into the Laboratory Information Management System. The second level of data validation is performed at the USGS. All samples submitted to SGS are accompanied by a set of USGS in-house reference samples (blinds) submitted at the rate of 10 percent. Using a program in the Laboratory Information Management System, the data for the reference samples are evaluated by comparing the 'obtained' analytical value to the 'expected' value for each element. The values must fall within the range of acceptance, which varies between +/- 5 percent to +/- 20 percent depending on the analytical method. Analytical results for samples associated with the accepted quality control data are then released to the sample submitter. Samples associated with rejected quality control data are reanalyzed by SGS. In this study, there weren't any samples associated with rejected quality control data, therefore no samples were reanalyzed. In the analytical-data table, field names (column headers) show the element and the units in which they are reported. Where a numerical suffix is shown, this element was analyzed by more than one method. In the detection-limits table and the metadata file, documentation is provided to explain each field name, as well as additional details such as lab name and method codes, analytical-method types and documentation, and the upper and lower detection limits for each of the elements and methods. For each element, for each sample, the analytical-data table either contains assay values, or it contains coded-value place holders (that is, null = not analyzed; -1 = the element's assay result is less than the lower detection limit for the method; -2 = the element's assay result is greater than the upper detection limit for the method; -3 = composition of this sample makes detection impossible by this method; interference problems).

2. How accurate are the geographic locations?

   Location data for each sample are presented in latitude and longitude coordinates in decimal degrees with NAD27 datum and Clarke 1866 spheroid; resolution is variable, and ranges from 5-digit GPS precision to others with less precision. Original locations were collected with NAD27 datum and Clarke 1866 spheroid prior to 2000, but some of the samples (after 2000) were collected in other projections. DGGS converted the coordinates for these samples to NAD27 datum and Clarke 1866 spheroid using appropriate transformations in ArcGIS; original location information is documented in Granitto and others (2013).

3. How accurate are the heights or depths?

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

   The data tables have been lightly edited for clarity but are generally provided as received from the lab.

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

   not applicable

How can someone get a copy of the data set?

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

Access_Constraints:

This report, map, and/or 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 these datasets 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. The 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 &amp; 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)
   Alaska 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 website (<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 2014-5

3. What legal disclaimers am I supposed to read?

   The State of Alaska makes no expressed 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.

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. Turnaround 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: Contact DGGS for current pricing

   • Availability in digital form:

     Data format:	ASCII tabular files
     Network links:	<http://dx.doi.org/10.14509/27287>

   • Cost to order the data: Free download

Who wrote the metadata?

Dates:

Last modified: 24-Oct-2014

Metadata author:

Alaska Division of Geological & Geophysical Surveys
Metadata Manager
3354 College Road
Fairbanks, AK 99709-3707
USA

(907)451-5020 (voice)

Metadata standard:

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

Metadata extensions used:

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