Lough, T.A.
Freeman, L.K.
Newberry, R.J.
Elliot, B.A.
Griesel, G.A.
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
tabular digital data, report
Raw Data File
RDF 2011-4 v. 2
Fairbanks, AK, USA
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
118 pp.
http://dx.doi.org/10.14509/23002
Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geologic field survey, including mapping and sampling in the Moran area in the Tanana A-6 and B-6 quadrangles, and the Melozitna A-1, A-2, B-1, and B-2 quadrangles, Alaska, from June 17 to August 15, 2011. The fieldwork provides basic information critical to building an understanding of Alaskaâs geology and is part of an integrated program of airborne geophysical surveys followed by geologic mapping. During 2011, 212 rock samples were collected for geochemical trace-element analysis (tables 1â3), 58 rock samples were collected for whole-rock (major- and minor-oxide and petrogenetically important trace elements) analyses, two samples were collected for analysis of non-carbonate carbon content, 439 polished rock slabs were analyzed for whole rock and petrogenetically important trace elements, and 26 samples were analyzed for rare earth elements.
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.
The DGGS metadata standard extends the FGDC standard to also include several elements that are required to facilitate our internal data management. These elements (referred to as "layers") relate individual data items to a common dataset. The dataset is available in tabular format as comma delimited ascii files and organized into five layers, as described in this metadata file under the "Entity_and_Attribute_Information" section. The layers are as follows:
>trace-element-geochemistry: sample locations and descriptions, geochemical data, analytical methods and detection limits
>whole-rock-geochemistry: sample locations and descriptions, geochemical data, analytical methods and detection limits
>non-carbonate-carbon-geochemistry: sample locations and descriptions, and geochemical data, analytical methods and detection limits
>slab-xrf-geochemistry: sample locations and descriptions, geochemical data, analytical methods and detection limits
>rare-earth-geochemistry: sample locations and descriptions, geochemical data, analytical methods and detection limits
20110617
20110815
ground condition
None planned
-154.735482
-152.471008
65.507439
65.107451
ISO 19115 Topic Category
geoscientificInformation
None
Geochemical Data
Geochemistry
Gold
Major Oxides
Minor Oxides
Platinum Group Elements
STATEMAP Project
Trace Elements
Trace Geochemical
Trace Metals
None
Alaska, State of
Tanana Quadrangle
Melozitna Quadrangle
Moran Dome
Moran Creek
Yukon River
Melozitna Mining District
Kokrines Hills
Grant Creek
Little Melozitna Hot Springs
None
Ruby Terrane
None
Devonian
Jurassic
Cretaceous
Paleozoic
Proterozoic
This dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
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.
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.
Adobe Acrobat Reader, any spreadsheet program or text editor.
Burns, L.E.
Fugro Airborne Surveys Corp.
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
document
Alaska Division of Geological & Geophysical Surveys Geophysical Report
GPR 2010-1
Fairbanks, AK
Alaska Division of Geological & Geophysical Surveys
2 linedata files, 19 grids, 20 GeoTIFFs and Google Earth KMZ files, 15 vector files, and 28 maps (56 sheets total)
http://dx.doi.org/10.14509/20561
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 Chemexâs 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.
No topologic relationships are present in data.
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.
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
A value of estimated position error in meters was calculated by Garmin eTrex Legend HCx GPS units and recorded for each sample location. Estimated position error calculated by Garmin eTrex Legend HCx units had a minimum of 1 meter, a maximum of 9 meters, and an average of approximately 3 meters. The GPS system suffers from calculation and geometric error such as error in satellite positions, mathematical error introduced by the GPS formulas used to calculate position, and errors caused by narrow satellite alignments. Estimated position error is a value determined by the GPS manufacturer for the calculation and geometric error as a whole. 'Selective availability,' a deliberate degradation of GPS data managed by the U.S. government, was not operating during the time period these samples were collected.
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.
2011
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 sampleâs protolith based on petrogenetically important trace elements. Unweathered or minimally weathered rock samples were preferentially selected for analysis.
2011
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.
2011
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 sampleâs 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.
2011
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).
2011
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 Essaâs 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.
2011
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.
2011
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.
2011
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 âCommentsâ column.
2011
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.
2011
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
2011
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.
2011
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.
20110
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 SuperQâs 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.
2011
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.
2011
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.
2011
Point
Universal Transverse Mercator
5
0.9996
-153
0
500000
0
coordinate pair
1
1
meters
trace-element-geochemistry
Universal Transverse Mercator
5
0.9996
-153
0
500000
0
coordinate pair
1
1
meters
whole-rock-geochemistry
Universal Transverse Mercator
5
0.9996
-153
0
500000
0
coordinate pair
1
1
meters
non-carbonate-carbon-geochemistry
Universal Transverse Mercator
5
0.9996
-153
0
500000
0
coordinate pair
1
1
meters
slab-xrf-geochemistry
Universal Transverse Mercator
5
0.9996
-153
0
500000
0
coordinate pair
1
1
meters
rare-earth-geochemistry
North American Datum of 1927
Clarke 1866
6378137
298.25722210088
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
Alaska Division of Geological & Geophysical Surveys
trace-element-geochemistry
Sample_ID
Unique sample identifier
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
Alaska Division of Geological & Geophysical Surveys
65.107451
65.507439
decimal degrees
Longitude
Longitude, NAD 27
Alaska Division of Geological & Geophysical Surveys
-154.735482
-152.484123
decimal degrees
Easting
Easting, UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
418494
524021
meters
Northing
Northing, UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
7221357
7264835
meters
UTM_Zone
UTM Zone 05N
Alaska Division of Geological & Geophysical Surveys
5N
UTM Zone 05N for all samples in this data set
Alaska Division of Geological & Geophysical Surveys and the United States Army Corps of Engineers
Field_Call
Lithology assigned to sample in the field based on apparent mineralogy and texture
Alaska Division of Geological & Geophysical Surveys
lithology
Lithology_Description
First 254 characters of brief rock description for the sample
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
Alaska Division of Geological & Geophysical Surveys
Characters 255 to 508 of brief rock description
---
Null value; Lithology description does not exceed 254 characters
Alaska Division of Geological & Geophysical Surveys.
Extension2_Lithology_Description
Extension of brief rock description for descriptions greater than 508 characters in length
Alaska Division of Geological & Geophysical Surveys
Characters 509 to 762 of brief rock description
---
Null value; Lithology description does not exceed 508 characters
Alaska Division of Geological & Geophysical Surveys.
Extension3_Lithology_Description
Extension of brief rock description for descriptions greater than 762 characters in length
Alaska Division of Geological & Geophysical Surveys
Characters 763 to 1016 of brief rock description
---
Null value; Lithology description does not exceed 762 characters
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.001
9.29
ppm
-1
Below detection limit of 0.001 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
-2
Above upper detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.002
9.29
ppm
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
22.3
22.3
ppm
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.5
22.3
ppm
-1
Below detection limit of 0.5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
9.69
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
5
3340
ppm
-1
Below detection limit of 5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
-2
Above upper detection limit of 10000 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.985
1.805
%
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
6710
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.5
142.5
ppm
-1
Below detection limit of 0.5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
2
996
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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..
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
27.3
%
-1
Below detection limit of 0.01%
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.5
19.1
ppm
-1
Below detection limit of 0.5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
166
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
3
1680
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
1090
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.55
48.4
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
40
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
5.57
%
-1
Below detection limit of .01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
80
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
22.4
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
27
28300
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
853
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
7.4
%
-1
Below detection limit of .01%
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
1810
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
8900
ppm
-2
Above upper detection limit of 10000 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
9990
22800
ppm
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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..
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
2
8760
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.002
0.025
ppm
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
0.037
ppm
-1
Below detection limit of 0.005 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
3.75
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
5
94
ppm
-1
Below detection limit of 5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
50
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
5
743
ppm
-1
Below detection limit of 5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
3160
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex
20
70
ppm
-1
Below detection limit of 20 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
1.93
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
10
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
30
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
552
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
4590
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
8960
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
2
2630
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
-2
Above upper detection limit of 10000 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
4.97
4.97
%
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys
whole-rock-geochemistry
Sample_ID
Unique sample identifier
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
Alaska Division of Geological & Geophysical Surveys
65.180341
65.504351
decimal degrees
Longitude
Longitude, NAD 27
Alaska Division of Geological & Geophysical Surveys
-153.892286
-152.498255
decimal degrees
Easting
Easting, UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
458216
523259
meters
Northing
Northing,UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
7228654
7264520
meters
UTM_Zone
UTM Zone 05N
Alaska Division of Geological & Geophysical Surveys
5N
UTM Zone 05N for all samples in this data set
Alaska Division of Geological & Geophysical Surveys and the United States Army Corps of Engineers
Field_Call
Lithology assigned to sample in the field based on apparent mineralogy and texture
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.
Alaska Division of Geological & Geophysical Surveys
lithology
Lithology_Description
First part of brief rock description
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
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
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
40.73
85.76
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1.83
15.74
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.71
18.89
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.02
15.11
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.06
35.8
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.02
4.5
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
6.5
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
0.36
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
3.65
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
0.28
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
0.411
%
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
0.04
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.01
0.14
%
-1
Below detection limit of 0.01 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.31
11.55
%
Total_pct
Calculated total for oxides in sample. Shown in percent.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
98.17
100.2
%
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
10
1180
ppm
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
7
2440
ppm
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
2
85
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
30
2050
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
2
979
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
2
341
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
5
101
ppm
-1
Below detection limit of 4 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
4
49
ppm
-1
Below detection limit of 4 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
---
Null value; element not analyzed by this method
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
2
298
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.
Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory
16
382
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys
non-carbonate-carbon-geochemistry
Sample_ID
Unique sample identifier
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
Alaska Division of Geological & Geophysical Surveys
65.336904
65.375371
decimal degrees
Longitude
Longitude, NAD 27
Alaska Division of Geological & Geophysical Surveys
-152.799444
-152.484123
decimal degrees
Easting
Easting for UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
509325
524021
meters
Northing
Northing for UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
7245909
7250113
meters
UTM_Zone
UTM Zone 05N
Alaska Division of Geological & Geophysical Surveys
5N
UTM Zone 05N for all samples in this data set
Alaska Division of Geological & Geophysical Surveys and the United States Army Corps of Engineers
Field_Call
Lithology assigned to sample in the field based on apparent mineralogy and texture
Alaska Division of Geological & Geophysical Surveys
lithology
Lithology_Description
First 254 characters of brief rock description for the sample location
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
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 (%).
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.
0.03
0.62
%
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.
Alaska Division of Geological & Geophysical Surveys
slab-xrf-geochemistry
Sample_ID
Unique sample identifier
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
Alaska Division of Geological & Geophysical Surveys
65.176060
65.507034
decimal degrees
Longitude
Longitude, NAD 27
Alaska Division of Geological & Geophysical Surveys
-154.574853
-152.471008
decimal degrees
Easting
Easting for UTM zone 5N, NAD 27
Alaska Division of Geological & Geophysical Surveys
426345
524607
meters
Northing
Northing for UTM zone 5N, NAD 27
Alaska Division of Geological & Geophysical Surveys
7228116
7264778
meters
UTM_Zone
UTM Zone 05N
Alaska Division of Geological & Geophysical Surveys
5N
UTM Zone 05N for all samples in this data set
Alaska Division of Geological & Geophysical Surveys and the United States Army Corps of Engineers
Root_Name
Lithology derived from geochemical data and rock textures in hand sample.
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.
Alaska Division of Geological & Geophysical Surveys
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.
---
Null value; indicates that the quality of the analysis is average/normal.
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
13.6
98.2
%
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.9
30.3
%
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0
0.599
%
-1
Below detection limit of 0.03 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.0342
46.6
%
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.133
37.5
%
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.02
6.8
%
-1
Below detection limit of 0.02 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.0531
39.3
%
-1
Below detection limit of 0.05 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.0303
0.32
%
-1
Below detection limit of 0.03 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.0234
10.8
%
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.0301
2.1
%
-1
Below detection limit of 0.03 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
0.0209
4.81
%
-1
Below detection limit of 0.02 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
4
37
%
-1
Below detection limit of 0.05 %
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
Total_pct
Sum of oxides; oxides are normalized to 100 percent.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
97.8793
100.0456
%
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
4
3510
ppm
-1
Below detection limit of 4
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
3.1
3.1
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
14
14
ppm
-1
Below detection limit of 5 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
63
567
ppm
-1
Below detection limit of 60 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
50
4900
ppm
-1
Below detection limit of 50 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
10
231
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
30
3910
ppm
-1
Below detection limit of 30 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
7
826
ppm
-1
Below detection limit of 7 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
110
9900
ppm
-1
Below detection limit of 110 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
165
279
ppm
-1
Below detection limit of 50 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
4
4
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
5
29
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
1
76
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
---
Null value; sample not analyzed using this analytical routine
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
7
3020
ppm
-1
Below detection limit of 7 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
9
660
ppm
-1
Below detection limit of 4 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
6
317
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
1
1554
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
---
Null value; sample not analyzed using this analytical routine
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
30
8110
ppm
-1
Below detection limit of 30 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
3
3
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
6
366
ppm
-1
Below detection limit of 4 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
5
1690
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
2
1240
ppm
---
Null value; sample not analyzed using this analytical routine
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
2
37
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
1
31
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
28
980
ppm
-1
Below detection limit of 25 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
15.6
56
ppm
-1
Below detection limit of 8 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
2
105
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
1
450
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys.
---
Null value; sample not analyzed using this analytical routine
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
9
734
ppm
-1
Below detection limit of 8 ppm
Alaska Division of Geological & Geophysical Surveys.
Zr_ppm
Zirconium values acquired by X-ray fluorescence spectrometry (XRF) using the IQ37mmVac analytical routine and shown in parts per million (ppm).
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
9
319
ppm
-1
Below detection limit of 9
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks.
11
650
ppm
-1
Below detection limit of 9 ppm
Alaska Division of Geological & Geophysical Surveys.
---
Null value; sample not analyzed by this analytical routine
Alaska Division of Geological & Geophysical Surveys.
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.
Alaska Division of Geological & Geophysical Surveys
rare-earth-geochemistry
Sample_ID
Unique sample identifier
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
Alaska Division of Geological & Geophysical Surveys
65.180341
65.504351
decimal degrees
Longitude
Longitude, NAD 27
Alaska Division of Geological & Geophysical Surveys
-153.888678
-152.502041
decimal degrees
Easting
Easting, UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
458375
523081
meters
Northing
Northing,UTM zone 05N, NAD 27
Alaska Division of Geological & Geophysical Surveys
7228654
7264520
meters
UTM_Zone
UTM Zone 05N
Alaska Division of Geological & Geophysical Surveys
5N
UTM Zone 05N for all samples in this data set
Alaska Division of Geological & Geophysical Surveys and the United States Army Corps of Engineers
Field_Call
Lithology assigned to sample in the field based on apparent mineralogy and texture
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.
Alaska Division of Geological & Geophysical Surveys
lithology
Lithology_Description
First part of brief rock description
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
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10.8
1370
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
4.6
200
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.5
104.5
ppm
-1
Below detection limit of 0.5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
10
2610
ppm
-1
Below detection limit of 10 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.06
30.7
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1.36
11.95
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.72
8.89
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.05
2.08
ppm
-1
Below detection limit of 0.03 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
5.9
33.8
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1.3
10.1
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.7
9.8
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.26
2.46
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1.9
102.5
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.09
2.4
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
83
83
ppm
-1
Below detection limit of 2 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.7
64.2
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
3.8
80.9
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.8
22.6
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.6
1000
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1.15
12.9
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
65
ppm
-1
Below detection limit of 1 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
6.7
368
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.1
37.5
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.21
1.63
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.06
70.3
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.6
4.8
ppm
-1
Below detection limit of 0.5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.1
1.64
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.05
31.3
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
5
1020
ppm
-1
Below detection limit of 5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
1
18
ppm
-1
Below detection limit of 5 ppm
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
6.8
141
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
0.63
14.9
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.
Alaska Division of Geological & Geophysical Surveys and ALS Chemex.
23
412
ppm
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