R.B. Tripp
E.A. Bailey
G.K. Lee
W.M. Benzel (ORCID: 0000-0002-4085-1876)
Bronwen Wang (ORCID: 0000-0003-1044-2227)
A.L. Pongratz (ORCID: 0000-0002-1174-7711)
20210623
Mineralogical and Chemical Data for Heavy-Mineral Concentrate Samples Collected in the Taylor Mountains Quadrangle, Alaska, 2004-2008
tabular digital data
Anchorage, Alaska
U.S. Geological Survey, Alaska Science Center
Tripp, R.B., Bailey, E.A., Lee, G.K., Benzel, W.M., Wang, B., Pongratz, A.L., 2021, Mineralogical and chemical data for heavy-mineral concentrate samples collected in the Taylor Mountains Quadrangle, Alaska, 2004-2008: U.S. Geological Survey data release, https://doi.org/10.5066/P94K1YXT
https://doi.org/10.5066/P94K1YXT
E.A. Bailey
G.K. Lee
S.H. Mueller
Bronwen Wang (ORCID: 0000-0003-1044-2227)
Z.A. Brown
G.A. Beischer
2010
Major and Trace-Element Data for Stream-Sediment and Rock Samples Collected in the Taylor Mountains 1:250,000-Scale Quadrangle, Alaska: U.S. Geological Survey Open-File Report 2007-1196, version 1.1
report
Open File Report
2007-1196, V1.1
Reston, Virginia
U.S. Geological Survey
Bailey, E.A., Lee, G.K., Mueller, S.H., Wang, Bronwen, Brown, Z.A., and Beischer, G.A.,2007, revised 2010, Major and trace-element data from stream-sediment and rock samples collected in the Taylor Mountains 1:250,000-scale quadrangle, Alaska: U.S. Geological Survey Open-File Report 2007-1196, version 1.1, http://pubs.usgs.gov/of/2007/1196/.
http://pubs.usgs.gov/of/2007/1196/
Data for 819 pan concentrated stream-sediment samples, nonmagnetic heavy-mineral concentrate (HMC) samples, and chemical data for 93 of HMC samples is presented in data file geology_mineralogy_geochemistry_TaylorMtns_Alaska_Wang.csv. The samples were collected in 2004-2008 as part of a reconnaissance geochemical geological survey of drainage basins mostly in the Taylor Mountains 1:250,000-scale quadrangle in southwestern Alaska. Samples were collected from first- or second-order streams, as shown on USGS 1:63,360-scale maps. The data reported here are from hand lens inspection of the panned concentrate samples in the field, microscopic examination of the non-magnetic fraction of the HMC samples in the lab, and chemical analyses by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry (ICP-AES-MS) of selected nonmagnetic HMC samples. Details of sample processing and analysis are provided in the supplemental document Supplemental_Info_Methods_Collection_Processing_Analytical.pdf. For citations regarding other analysis and samples collected during the survey see the references provided in supplemental documentation Supplemental_Info_Citations_Related_Datasets.pdf.
The purpose of the study was to identify areas of potential for minerals of possible economic value, to provide data that may be used to determine regional-scale element baselines, and to provide data for concurrent USGS geologic mapping and mineral resource assessment activities.
2004
2008
ground condition
None planned
-159.00
-155.87
61.00
59.81
ISO 19115 Topic Category
geoscientificInformation
USGS Thesaurus
chemical elements
economic geology
geochemistry
grain-size analysis
mineralogy
mineral resources
ore formation
sedimentology
Global Change Master Directory (GCMD) Earth Science Keywords Thesaurus
land surface
erosion/sedimentation
fluvial processes
sediment chemistry
sediment composition
sediment transport
USGS Metadata Identifier
USGS:ASC391
USGS Geographic Names Information System (GNIS)
Alaska
Kuskokwim River
Taylor Mountains
None
None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations.
U.S. Geological Survey, Alaska Science Center
Bronwen Wang
Research Geologist
mailing and physical
4210 University Drive
Anchorage
AK
99508
US
907-786-7000
ascweb@usgs.gov
As part of a Cooperative Research and Development Agreement (CRADA) with the USGS, 112 of these concentrate samples were collected by Bristol Bay Native Corporation (BBNC) personnel in 2004.
Karl, S.M. (ORCID: 0000-0003-1559-7826)
2018
GIS prospectivity analysis for critcal minerals in ore-forming systems in Alaska
web site
Science Portal
446
Anchorage, Alaska
U.S. Geological Survey, Alaska Science Center
This is a link to the broader USGS Alaska Science Center research project supported by these data. Users will find a description of the research project and links to associated reports, publications, and data products.
https://alaska.usgs.gov/portal/project.php?project_id=446
Minerals were identified primarily from physical properties identified with laboratory mineralogical analysis. Occasionally X-ray diffraction was used to confirm some mineral identifications. The elemental data in this data release was determined by Inductively Coupled Plasma-Atomic Emission-Mass Spectrometry (ICP-AES-MS) analysis. The detector used to analyze each element is given in supplemental file Supplemental_Info_Methods_Collection_Processing_Analytical.pdf. Data were considered acceptable if recovery for all 55 elements was plus or minus 15 percent at five times the lower reporting limit and the calculated relative standard deviation (RSD) of duplicate sample analysis was no greater than 15 percent.
For samples where no chemical analysis was performed the element concentration are left blank. Where elemental concentrations did not meet or exceed the detection quantification capability of the instrument, the symbol "<" and the lower limit of detection are listed. Where elemental concentrations exceeded the upper detection limit of the instrument, the symbol ">" and the upper limit of detection are listed.
All mineralogical observations for the 819 field-panned samples and laboratory prepared HMC samples are given; elemental composition of the HMC samples was determined only on 93 samples. The concentrations of all the elements determined by chemical analysis on this sample subset are reported, with the exception of analysis that returned results either less than lower reporting limits of reporting or greater than the upper reporting limits. The file geology_dataDictionary_TaylorMtns_Alaska_Wang.csv contains the parameters for the upper and lower reporting limits for each element analyzed for.
All coordinates were determined by handheld global positioning systems (GPS) in decimal degrees and are accurate to about 0.0001 degrees or about 20 feet. The 1927 North American Datum (NAD27) based on the Clarke 1866 ellipsoid is used.
Joseph E. Taggart, U.S. Geological Survey
2002
Analytical Methods for Chemical Analysis of Geologic and Other Materials, U.S. Geological Survey
publication
Denver, Colorado
U.S. Geological Survey
This publication presents validated analytical methods used by the USGS Mineral Resources Team.
https://pubs.usgs.gov/of/2002/ofr-02-0223/
website
2002
publication date
U.S. Geological Survey Open-File Report 02-0223
Provides additional information, to include step-by-step procedures for laboratory analysis parameters and testing.
Bronwen Wang, U.S. Geological Survey
2021
Supplemental Material Describing Sample Collection, Sample Preparation, and Analysis Use in the Acquisition of Mineralogical and Geochemical Data for the Heavy-Mineral Concentrate Fraction Samples in the Taylor Mountains Quadrangle, Alaska.
publication
Anchorage, Alaska
U.S. Geological Survey, Alaska Science Center
This is a supplemental PDF document included in this data release. The file name is Supplemental_Info_Methods_Collections_Processing_Analytical.pdf.
pdf file
2021
publication date
Taylor Mountains Methods of Collection and Analysis
Provides additional information for sample collection procedures, visual analysis and laboratory analysis parameters.
Sample Collection: A total of 819 pan concentrated stream-sediment samples were collected during a geological survey of the Taylor Mountains quadrangle, Alaska. About 10 percent of the samples are site duplicates collected for quality control. Samples are composites of active alluvium collected primarily from first- or second-order streams as shown on USGS 1:63,360-scale maps. Each composite sample was created by collecting sediment from several places at the sample site, generally along a 30-ft. stretch of the channel and combining the increments to form a single sample for the site. When possible, moderately coarse gravel material was selected from areas where heavy minerals tend to drop out of the actively flowing stream water, such as at point bars or inside curves in the stream course. Sediment was wet-sieved through a 10-mesh (2-mm) screen until a 14-inch stainless steel or plastic pan was full. The material was then carefully panned until about 100 grams of the heaviest material was left in the pan. The panned material was swirled in the pan until a heavy mineral trail developed. This trail was examined with a 10X hand-lens for minerals of interest, such as gold or cinnabar. The panned material was saved in 4-mil plastic zip-loc bags for processing at the USGS laboratory in Denver, Co.
U.S. Geological Survey Open-File Report 02-0223
Taylor Mountains Methods of Collection and Analysis
2008
Laboratory preparation of the heavy mineral concentrate sample: In the laboratory, the panned samples were air dried and then sieved through a 30-mesh (0.60-mm) sieve. The minus-30 mesh fraction was further separated using a heavy liquid, bromoform, to remove the remaining lighter minerals having a specific gravity of 2.85 or less. A Frantz Isodynamic Separator was used to split the concentrate samples into two mineral phases; a relatively magnetic phase containing magnetite, ilmenite, garnet, amphibole, pyroxene, epidote, and other iron-rich silicates, and, a relatively nonmagnetic phase containing most ore-related and low-iron oxide and silicate minerals. Refer to https://www.usgs.gov/energy-and-minerals/mineral-resources-program/science/analytical-chemistry/ for links to laboratory processes.
U.S. Geological Survey Open-File Report 02-0223
2008
Mineralogical Analysis of the non-magnetic fraction of the heavy mineral concentrate sample: The non-magnetic fractions of the heavy mineral concentrate samples were scanned visually under a ring-light illuminated binocular microscope using as much as 56X magnification. Shortwave ultraviolet illumination was also used to identify scheelite and powellite. In most cases, the mineral grains could be identified from their physical properties, but occasionally X-ray diffraction or chemical analysis was used to confirm some mineral identifications. Minerals of primary interest include gold, cinnabar, monazite, barite, cassiterite, scheelite, and iron sulfides such as pyrite, arsenopyrite, and chalcopyrite.
U.S. Geological Survey Open-File Report 02-0223
2008
Geochemical Analysis of the non-magnetic fraction of the heavy mineral concentrate sample: A subset of 93 of the nonmagnetic heavy mineral concentrate samples were analyzed for 55 major, rare-earth, and trace elements by inductively coupled plasma-atomic emission spectrometry-mass spectrometry (ICP-AES-MS) using a modification of Meier and Slowik (2002) (https://www.usgs.gov/media/files/60-elements-icp-oes-ms-na2o-fusion-method; U.S. Geological Survey, 2010). A 0.10 g aliquot of the non-magnetic fraction of heavy mineral concentrate sample was decomposed using a sodium peroxide sinter heated to 450°C. The resultant cake was leached with water and acidified with nitric acid. After an addition of tartaric acid, aliquots of the digested samples were aspirated into the ICP-AES-MS. Data were considered acceptable if recovery for all 55 elements was plus or minus 15 percent at five times the lower reporting limit and the calculated relative standard deviation (RSD) of duplicate sample analysis was no greater than 15 percent.
U.S. Geological Survey Open-File Report 02-0223
Supplemental_Info_Methods_Collections_Processing_Analytical
2008
Point
Point
0.0001
0.0001
Decimal degrees
WGS 1984
WGS 1984
6378137
298.257223563
geology_dataDictionary_TaylorMtns_Alaska_Wang.csv
Table created as an added guide to the user listing the name of all fields within the table geology_mineralogy_geochemistry_TaylorMtns_Alaska_Wang.csv, including a brief description of the field, as well as the data units and corresponding detection limits, as applicable to the type of data presented.
Author defined
Table
The name of the data table where the parameter 'Field' is found.
Author defined
The only attribute for this data set is the file containing the table named "geology_mineralogy_geochemistry_TaylorMtns_Alaska_Wang.csv".
Field
Field name found in the data table listed in the field 'Table'.
Author defined
Attributes in this field are single words or concatenated abbreviations that name the field.
Description
Brief explanation of the contents of 'Field'.
Author defined
Attributes in this field are brief descriptions of the contents of 'Field'.
Units
The unit of measurement for applicable data fields.
Author defined
n/a
not applicable
Author defined
decimal degrees
units of angular measurement
Author defined
grains
identifiable individual granular materials
Author defined
parts per million
concentration ratio expressed in reference to one million measures
Author defined
percent
ratio expressed as a fraction of 100
Author defined
weight percent
percentage of mass
Author defined
ICP_AES_MS_Lower_Reporting_Limit
Detection and reporting parameters for the Inductively Coupled Plasma Atomic Emission Spectrometry Mass Spectrometry (ICP-AES-MS) analytical method.
Author defined
The attributes in this data set are a number and a unit of measure (pct or ppm), or "n/a" when reporting limits do not apply.
ICP_AES_MS_Upper_Reporting_Limit
Detection and reporting parameters for the Inductively Coupled Plasma Atomic Emission Spectrometry Mass Spectrometry (ICP-AES-MS) analytical method.
Author defined
The attributes in this data set are a number and a unit of measure (pct or ppm), or "n/a" when reporting limits do not apply.
geology_mineralogy_geochemistry_TaylorMtns_Alaska_Wang.csv
Table with sample information, including location, field observations, laboratory observations, and results of laboratory mineralogy and geochemical analysis performed on nonmagnetic fractions of a heavy mineral concentrate separated from a pan concentrate sample. This table consists of 819 entries and is presented in comma separated values (.csv) format.
Author defined
Field_Number
Unique sample identifier assigned by collector or submitter during field collection procedures.
Author defined
Alphanumeric values assigned by the collector or submitter, including the following parameters: generally, the first two numerical characters represent the year the sample was collected. The next two characters represent the 1:250,000-scale quadrangle the sample was planned to be collected in (TA = Taylor Mountains). The next 3 or 4 characters represent the site number assigned by the collector. The last character represents a sample media designator. For this report, 'C' = panned concentrate and 'D' = site duplicate. Field numbers that begin with a 'B' were collected in 2004 by Bristol Bay Native Corporation personnel under a Cooperative Research and Development Agreement (CRADA) with the USGS. These samples were collected using USGS sampling protocol and were prepared and analyzed by the USGS.
Latitude
Sample collection location, measured in degrees north latitude, datum NAD27.
Author defined
59.8138
61.0000
decimal degrees
0.0001
Longitude
Sample collection location, measured in degrees west longitude, datum NAD27.
Author defined
-158.9999
-155.8725
decimal degrees
0.0001
Quad_63360
The 1:63,360 scale USGS topographic map quadrangle corresponding to where the sample was collected.
Author defined
Attributes within this field include the following 1:250,000 scale USGS topographic map unit codes only:
TA = Taylor Mountains LC = Lake Clark DI = Dillingham. Following the two letter topographic unit code is a single space, then a single letter, followed by a dash, and then a single digit number. These designators represent one of 32 1:63,360-scale quadrangles within each of the above listed 1:250,000-scale quadrangles. These are coded by letter and number denoting relative placement within the larger quadrangle, from A-1 in the southeast corner through D-8 in the northwest corner.
Site_comments_field
General descriptive information recorded by the sample collector; based on visual observation at the sample site and general knowledge of the study area.
Author defined
This is a free text field, and attributes include a variety of visual observations from numerous sample collectors. Blank cells indicate no visual observations were recorded by the person collecting the sample.
Pan_comments_field
Observations about the panned concentrate sample; heavy minerals identified with a 10X hand-lens, recorded by the sample collector at the sample site.
Author defined
This is a free text field, and attributes include a variety of visual observations from numerous sample collectors. Blank cells indicate no visual observations were recorded by the person collecting the sample.
gold_Pan_grains
Number of gold grains identified in the panned concentrate sample with 10X hand-lens in the field.
Author defined
0
100
grains
gold_HMC_grains
Number of gold grains identified in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with a binocular microscope.
Author defined
0
176
grains
gold_HMC_comments
Comments on the physical characteristics of the gold grains observed in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with binocular microscope.
Author defined
This is a free text field, and attributes include a variety of visual observations from numerous sample collectors. Blank cells indicate no visual observations were recorded by the person collecting the sample.
cinnabar_Pan_grains
Number of cinnabar grains identified in the panned concentrate sample with 10X hand-lens at the time of collection.
Author defined
0
130
grains
cinnabar_HMC_grains
Number of cinnabar grains identified in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with a binocular microscope.
Author defined
0
500
grains
cinnabar_HMC_comments
Comments on the physical characteristics of the cinnabar grains observed in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with a binocular microscope.
Author defined
This is a free text field, and attributes include a variety of visual observations from numerous sample collectors. Blank cells indicate no visual observations were recorded by the person collecting the sample.
monazite_dark
Estimate of the relative abundance, by volume, of dark monazite identified in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with a binocular microscope.
Author defined
A
abundant amount of dark monazite identified, greater than 10% by volume
Author defined
M
moderate amount of dark monazite identified, greater than 1% but less than 10% by volume
Author defined
N
dark monazite not identified or present in sample
Author defined
P
dark monazite identified and present in sample, greater than 0% but less than 1% by volume
Author defined
monazite_yellow
Presence or absence of yellow (igneous) monazite in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with a binocular microscope.
Author defined
N
yellow (igneous) monazite not identified or present in sample
Author defined
P
yellow (igneous) monazite present in sample
Author defined
monazite_comments
Comments on the physical characteristics of the monazite observed in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with a binocular microscope.
Author defined
This is a free text field, and attributes include a variety of visual observations. Blank cells indicate no visual observations were recorded by the person observing the sample.
barite
Presence or absence of barite in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with a binocular microscope.
Author defined
N
barite not identified or present in sample
Author defined
P
barite present in sample
Author defined
cassiterite
Presence or absence of cassiterite in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with binocular microscope.
Author defined
N
cassiterite not identified or present in sample
Author defined
P
cassiterite present in sample
Author defined
scheelite_grains
Number of scheelite grains in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with binocular microscope.
Author defined
0
3000
grains
sulfides
Presence or absence of iron sulfides (arsenopyrite, chalcopyrite, pyrite) in the nonmagnetic heavy-mineral-concentrate sample. This information is derived by visual inspection of the sample with binocular microscope.
Author defined
N
iron sulfides (arsenopyrite, chalcopyrite, pyrite) not identified in sample
Author defined
P
iron sulfides (arsenopyrite, chalcopyrite, pyrite) present in sample
Author defined
plus_30_mesh_minerals
Minerals identified in the plus 30-mesh fraction of the panned concentrate of some samples using a binocular microscope.
Author defined
This is a free text field, and attributes include a variety of visual observations. Blank cells indicate no visual observations were recorded by the person observing the sample.
Observation_comments_lab
Estimate in % (percent) by volume of minerals observed with binocular microscope; other minerals observed; comments on other minerals observed.
Author defined
This is a free text field, and attributes include a variety of visual observations. Blank cells indicate no visual observations were recorded by the person observing the sample.
Lab_Number
Each sample submitted for analyses is assigned a unique ID number by USGS Sample Control that is integrated with the USGS laboratory information storage system (LIMS) prior to submitting to a laboratory.
Author defined
Attributes for this field are in the format of "C-" followed by a unique six digit number assigned by the laboratory. Blank cells are present, as not all samples were submitted for detailed geochemical analyses.
Al_ICP_pct
Concentration of aluminum in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.68
15.50
weight percent
Ca_ICP_pct
Concentration of calcium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.52
19.00
weight percent
Fe_ICP_pct
Concentration of iron in stream-sediment samples; determined by iInductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.70
25.90
weight percent
K_ICP_pct
Concentration of potassium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.09
0.63
weight percent
Mg_ICP_pct
Concentration of magnesium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.34
9.67
weight percent
Mn_ICP_pct
Concentration of manganese in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.02
2.29
weight percent
P_ICP_pct
Concentration of phosphorus in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.09
3.44
weight percent
Ti_ICP_pct
Concentration of titanium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.67
13.90
weight percent
Ag_ICP_ppm
Concentration of silver in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<1
less than the lower reporting limit (1 part per million)
Author defined
1
81
parts per million
As_ICP_ppm
Concentration of arsenic in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<30
less than the lower reporting limit (30 parts per million)
Author defined
30
6080
parts per million
Ba_ICP_ppm
Concentration of barium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>10,000
greater than the upper reporting limit (10,000 parts per million, or 1 weight percent)
Author defined
46.3
2680.0
parts per million
Be_ICP_ppm
Concentration of beryllium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<5
less than the lower reporting limit (5 parts per million)
Author defined
5
11
parts per million
Bi_ICP_ppm
Concentration of bismuth in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<0.1
less than the lower reporting limit (0.1 parts per million)
Author defined
0.1
188.0
parts per million
Cd_ICP_ppm
Concentration of cadmium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<0.2
less than the lower reporting limit (0.2 parts per million)
Author defined
0.2
2.1
parts per million
Ce_ICP_ppm
Concentration of cerium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>10,000
greater than the upper reporting limit (10,000 parts per million or 1 weight percent)
Author defined
28.6
8520.0
parts per million
Co_ICP_ppm
Concentration of cobalt in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
2.9
73.1
parts per million
Cr_ICP_ppm
Concentration of chromium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
60.0
12676.0
parts per million
Cs_ICP_ppm
Concentration of cesium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.2
7.0
parts per million
Cu_ICP_ppm
Concentration of copper in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<5
less than the lower reporting limit (5 parts per million)
Author defined
5
297
parts per million
Dy_ICP_ppm
Concentration of dysprosium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
3.32
549.00
parts per million
Er_ICP_ppm
Concentration of erbium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
2.2
167.0
parts per million
Eu_ICP_ppm
Concentration of europium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.65
618.00
parts per million
Ga_ICP_ppm
Concentration of gallium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
5.0
509.0
parts per million
Gd_ICP_ppm
Concentration of gadolinium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>1,000
greater than the upper reporting limit (1,000 parts per million)
Author defined
4.0
926.0
parts per million
Ge_ICP_ppm
Concentration of germanium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
2.0
79.0
parts per million
Hf_ICP_ppm
Concentration of hafnium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
3.0
4380.0
parts per million
Ho_ICP_ppm
Concentration of holmium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.69
53.90
parts per million
In_ICP_ppm
Concentration of indium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<0.2
less than the lower reporting limit (0.2 parts per million)
Author defined
0.2
1.4
parts per miliion
La_ICP_ppm
Concentration of lanthanum in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>10,000
greater than the upper reporting limit (10,000 parts per million or 1 weight percent)
Author defined
13
9120
parts per million
Li_ICP_ppm
Concentration of lithium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
10
70
parts per million
Lu_ICP_ppm
Concentration of lutetium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.37
51.60
parts per million
Mo_ICP_ppm
Concentration of molybdenum in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<2
less than the lower reporting limit (2 parts per million)
Author defined
2
18
parts per million
Nb_ICP_ppm
Concentration of niobium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
9.0
441.0
parts per million
Nd_ICP_ppm
Concentration of neodymium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>10,000
greater than the upper reporting limit (10,000 parts per million or 1 weight percent)
Author defined
16
9080
parts per million
Ni_ICP_ppm
Concentration of nickel in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<5
less than the lower reporting limit (5 parts per million)
Author defined
5
160
parts per million
Pb_ICP_ppm
Concentration of lead in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<5
less than the lower reporting limit (5 parts per million)
Author defined
5
152
parts per million
Pr_ICP_ppm
Concentration of praseodymium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>1,000
greater than the upper reporting limit (1,000 parts per million or 0.1 weight percent)
Author defined
4
969
parts per million
Rb_ICP_ppm
Concentration of rubidium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
3.5
32.7
parts per million
Sb_ICP_ppm
Concentration of antimony in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.5
342.0
parts per million
Sc_ICP_ppm
Concentration of scandium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
15.0
98.0
parts per million
Sm_ICP_ppm
Concentration of samarium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>1,000
greater than the upper reporting limit (1,000 parts per million or 0.1 weight percent)
Author defined
4.0
927.0
parts per million
Sn_ICP_ppm
Concentration of tin in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>10,000
greater than the upper reporting limit (10,000 parts per million or 1 weight percent)
Author defined
4.0
9950.0
parts per million
Sr_ICP_ppm
Concentration of strontium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
33.4
4350.0
parts per million
Ta_ICP_ppm
Concentration of tantalum in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.5
72.2
parts per million
Tb_ICP_ppm
Concentration of terbium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.58
253.00
parts per million
Th_ICP_ppm
Concentration of thorium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>1,000
greater than the upper reporting limit (1,000 parts per million or 0.1 weight percent)
Author defined
2.7
956.0
parts per million
Tl_ICP_ppm
Concentration of thallium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<0.5
less than the lower reporting limit (0.5 parts per million)
Author defined
1.1
1.1
parts per million
Tm_ICP_ppm
Concentration of thulium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.29
28.70
parts per million
U_ICP_ppm
Concentration of uranium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
0.93
407.00
parts per million
V_ICP_ppm
Concentration of vanadium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
83.0
853.0
parts per million
W_ICP_ppm
Concentration of tungsten in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
<1
less than the lower reporting limit (1 part per million)
Author defined
>10,000
greater than the upper reporting limit (10,000 parts per million or 1 weight percent)
Author defined
2.0
1500.0
parts per million
Y_ICP_ppm
Concentration of yttrium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
19.6
1500.0
parts per million
Yb_ICP_ppm
Concentration of ytterbium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
2.2
271.0
parts per million
Zn_ICP_ppm
Concentration of zinc in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
34.0
920.0
parts per million
Zr_ICP_ppm
Concentration of zirconium in stream-sediment samples; determined by Inductively Coupled Plasma-Atomic Emission Spectrometry-Mass Spectrometry following sodium peroxide sinter decomposition at 450 degrees Celsius. Empty cells indicate no geochemistry analysis was accomplished.
Author defined
>10,000
greater than the upper reporting limit (10,000 parts per million or 1 weight percent)
Author defined
119.0
9410.0
parts per million
Supplemental Material: Citations for Other Geologic Data Collected During the Geologic Survey of the Taylor Mountains Quadrangle
Supplemental_Info_Citations_Related_Datasets.pdf.
U.S. Geological Survey, Alaska Science Center
mailing and physical
4210 University Drive
Anchorage
Alaska
99508-4626
United States
1-907-786-7000
ascweb@usgs.gov
Authoritative source of the data.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
CSV
Data are distributed in a Zip package containing data in CSV format and FGDC metadata in XML and HTML formats.
Compression applied by the 7-Zip utility using default compression (5). The file can be decompressed and unpacked by open source or commercially available unzip tools.
0.24
https://doi.org/10.5066/P94K1YXT
None
The data provided in this data release may contain trailing zeros. If the comma separated values format files are opened directly in Microsoft Excel, trailing zeros may be truncated. To ensure the appropriate number of significant figures are displayed when using Excel, please open a blank workbook and import the data from the .csv file as text (no data type detection).
20210622
US Geological Survey, Alaska Science Center
Alan Pongratz
Geologist
mailing and physical
4210 University Drive
Anchorage
Alaska
99508-4626
United States
1-907-786-7000
ascweb@usgs.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998