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Jaime S Azain

Jaime Azain is a Research Geologist with the Geology, Geophysics, and Geochemistry Science Center.

Science and Products

Stacks of organized boxes containing trays of archived samples splits in the National Geochemical Sample Archive, Denver, CO.

Analytical Chemistry

The USGS Mineral Resources Program and other USGS scientists need specialized routine analysis in order to conduct their research. The Analytical Chemistry project facilitates the ability of USGS scientists to obtain needed analyses.
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center
Analytical Chemistry

Analytical Chemistry

The USGS Mineral Resources Program and other USGS scientists need specialized routine analysis in order to conduct their research. The Analytical Chemistry project facilitates the ability of USGS scientists to obtain needed analyses.
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Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023 Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023

The data set contains geochemical data for 1,524,014 rock, sediment, soil, and mineral samples collected by the U.S. Geological Survey within US state, territory or Economic Exclusive Zone (EEZ) boundaries, and analyzed from 1962 through 2023 either in the analytical laboratories of the Geologic Discipline of the USGS or by contract with commercial analytical laboratories. These data...
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Geochemical data generated by projects funded by the USGS Earth Mapping Resources Initiative (ver. 12.0, December 2025) Geochemical data generated by projects funded by the USGS Earth Mapping Resources Initiative (ver. 12.0, December 2025)

The geochemical data included here were generated as part of the Earth Mapping Resources Initiative (Earth MRI), which was developed by the U.S. Geological Survey (USGS) in response to a Federal directive calling on various Federal agencies to address potential vulnerabilities in the Nation’s supply of critical mineral resources. Earth MRI is a partnership between the USGS, State...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Data from the Chemical Analysis of Archived Stream-Sediment Samples, Alaska Data from the Chemical Analysis of Archived Stream-Sediment Samples, Alaska

This data release contains the elemental concentration data for more than 1700 archived stream-sediment samples collected in Alaska. Samples were retrieved from the USGS Mineral Program's sample archive in Denver, CO, and the Alaska Division of Geological and Geophysical Surveys Geologic Materials Center in Anchorage, AK. All samples were analyzed using a multi-element analytical method...
By
Alaska Science Center

Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah

Beginning in November of 2015, the U.S. Geological Survey (USGS) undertook a project to reanalyze approximately 60,000 archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) project from selected areas in Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah. A small amount...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Reanalysis of Additional Selected Archived NURE-HSSR Sediment Samples from Idaho and Montana Reanalysis of Additional Selected Archived NURE-HSSR Sediment Samples from Idaho and Montana

In December of 2018, the U.S. Geological Survey (USGS) signed a Technical Assistance Agreement with a third party to reanalyze 2,324 archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) project from selected areas in Idaho and Montana. A small amount (approximately 0.25 grams [g]) of sieved...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Global Geochemical Database for Critical Minerals in Archived Mine Samples Global Geochemical Database for Critical Minerals in Archived Mine Samples

The Critical Minerals in Archived Mine Samples Database (CMDB) contains chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States. In addition, the database contains samples from archetypal deposits from 27 other countries in North America, South America, Asia, Africa and Europe. Samples were obtained from archived ore...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Alaska Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Alaska

Selected archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program, were reanalyzed by the U.S. Geological Survey (USGS) as part of a NURE-HSSR Reanalysis project (Smith and others, 2018). A small amount (approximately 0.25 grams [g]) of sieved less than 75-micron sample material was...
By
Geology, Geophysics, and Geochemistry Science Center

Earth Mapping Resources Initiative protocols—Sampling hard-rock mine waste and perpetual mine water sources Earth Mapping Resources Initiative protocols—Sampling hard-rock mine waste and perpetual mine water sources

Supporting the overarching goal to evaluate critical minerals nationwide, the mine waste characterization effort in the U.S. Geological Survey (USGS) Earth Mapping Resources Initiative has created a series of protocols to standardize sampling carried out under this effort by the participating State geological surveys and their cooperators. The protocols are based on published, reviewed...
Authors
Kate M. Campbell, Robert R. Seal, Nadine M. Piatak, Jaime S. Azain, Jean M. Morrison, Sarah Jane White, Andrew H. Manning, Katherine Walton-Day, JoAnn M. Holloway, Bronwen Wang
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Colorado Water Science Center, Geology, Energy & Minerals Science Center, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Chemical analysis of archived stream-sediment samples, Alaska Chemical analysis of archived stream-sediment samples, Alaska

Geochemical data are presented for more than 1,500 archived stream-sediment samples and accompanying quality control samples. The archived sediments were reanalyzed to improve the stream geochemical dataset for Alaska and to support ongoing U.S. Geological Survey (USGS) studies. Sediment samples were primarily from the USGS Mineral Resources Program’s sample archive in Denver, Colorado...
Authors
Bronwen Wang, George N.D. Case, Mathew Granitto, Keith A. Labay, Nora B. Shew, Andrew D. Ingraham, Jaime S. Azain, Zachary C. Bueghly, Susan M. Karl, Karen D. Kelley
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Data release of reprocessed select National Uranium Resources Evaluation program samples in Wyoming Data release of reprocessed select National Uranium Resources Evaluation program samples in Wyoming

The U.S. Atomic Energy Commission established the National Uranium Resources Evaluation (NURE) program in 1973 to identify uranium resources throughout the United States. Part of this program focused on the collection of stream-sediment samples and subsequent geochemical analyses of these samples for uranium, in addition to 47 other elements. As part of the original program, 18,424...
Authors
David W. Lucke, Steven M. Smith, Jaime S. Azain, Andrew David Ingraham
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Inmachuk, Kugruk, Kiwalik, and Koyuk River drainages, Granite Mountain, and the northern Darby Mountains, Bendeleben, Candle, Kotzebue, and Solomon quadrangles, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Inmachuk, Kugruk, Kiwalik, and Koyuk River drainages, Granite Mountain, and the northern Darby Mountains, Bendeleben, Candle, Kotzebue, and Solomon quadrangles, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Kougarok area, Bendeleben and Teller quadrangles, Seward Peninsula, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Kougarok area, Bendeleben and Teller quadrangles, Seward Peninsula, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Haines area, Juneau and Skagway quadrangles, southeast Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Haines area, Juneau and Skagway quadrangles, southeast Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Tonsina area, Valdez Quadrangle, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Tonsina area, Valdez Quadrangle, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the northeastern Alaska Range, Healy, Mount Hayes, Nabesna, and Tanacross quadrangles, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the northeastern Alaska Range, Healy, Mount Hayes, Nabesna, and Tanacross quadrangles, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Zane Hills, Hughes and Shungnak quadrangles, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Zane Hills, Hughes and Shungnak quadrangles, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

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

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Jaime S. Azain, Matthew Granitto
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical Data Portal for Rock, Sediment, Soil, and Mineral Samples, United States and Territories Geochemical Data Portal for Rock, Sediment, Soil, and Mineral Samples, United States and Territories

The Geochemical Data Portal assembles, reformats, corrects, and archives data obtained from the geochemical analysis of geologic samples collected for USGS and Department of Energy studies.
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center
Filter Total Items: 34
Ore Grade 61 Element ICP-MS, Aqua Regia Method Ore Grade 61 Element ICP-MS, Aqua Regia Method
Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Aqua Regia Digestion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Aqua Regia Digestion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method
Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method
Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method
Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Contract Chemistry Laboratory Method and Fee - Method 23 Highly Mineralized Samples by Strong Acid Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Contract Chemistry Laboratory Method and Fee - Method 23 Highly Mineralized Samples by Strong Acid Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
PGE's by NiS Fire Assay and ICP-MS PGE's by NiS Fire Assay and ICP-MS
PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

Contract Chemistry Laboratory Method - Method 15 Platinum Group Elements (PGEs) by Nickel Sulfide (NiS) Fire Assay and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

Contract Chemistry Laboratory Method - Method 15 Platinum Group Elements (PGEs) by Nickel Sulfide (NiS) Fire Assay and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
Acid Base Accounting Method Acid Base Accounting Method
Acid Base Accounting Method

Acid Base Accounting Method

Acid Base Accounting Method

Contract Chemistry Laboratory Method - Method 5 Acid Base Accounting

By
Geology, Geophysics, and Geochemistry Science Center
Acid Base Accounting Method

Acid Base Accounting Method

Acid Base Accounting Method

Contract Chemistry Laboratory Method - Method 5 Acid Base Accounting

By
Geology, Geophysics, and Geochemistry Science Center
Graphite Carbon Method Graphite Carbon Method
Graphite Carbon Method

Graphite Carbon Method

Graphite Carbon Method

Contract Chemistry Laboratory Method - Method 4 Graphite Carbon.

By
Geology, Geophysics, and Geochemistry Science Center
Graphite Carbon Method

Graphite Carbon Method

Graphite Carbon Method

Contract Chemistry Laboratory Method - Method 4 Graphite Carbon.

By
Geology, Geophysics, and Geochemistry Science Center
Dissolved Organic Carbon Method Dissolved Organic Carbon Method
Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Contract Chemistry Laboratory Method - Method 42 Dissolved Organic Carbon (DOC).

By
Geology, Geophysics, and Geochemistry Science Center
Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Contract Chemistry Laboratory Method - Method 42 Dissolved Organic Carbon (DOC).

By
Geology, Geophysics, and Geochemistry Science Center
Alkalinity Method Alkalinity Method
Alkalinity Method

Alkalinity Method

Alkalinity Method

Contract Chemistry Laboratory Method - Method 41 Alkalinity

By
Geology, Geophysics, and Geochemistry Science Center
Alkalinity Method

Alkalinity Method

Alkalinity Method

Contract Chemistry Laboratory Method - Method 41 Alkalinity

By
Geology, Geophysics, and Geochemistry Science Center
Ion Chromatography in Aqueous Solution Ion Chromatography in Aqueous Solution
Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Contract Chemistry Laboratory Method - Method 40 Ion Chromatography (IC) in Aqueous Solution.

By
Geology, Geophysics, and Geochemistry Science Center
Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Contract Chemistry Laboratory Method - Method 40 Ion Chromatography (IC) in Aqueous Solution.

By
Geology, Geophysics, and Geochemistry Science Center
ICP-OES-MS / ICP-MS Water Method ICP-OES-MS / ICP-MS Water Method
ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

Contract Chemistry Laboratory Method - Method 36 Inductively Coupled Plasma-Optical Emission Spectrometry-Mass Spectrometry (ICP-OES-MS) / Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) Water and Method 37 Trace Levels Water.

By
Geology, Geophysics, and Geochemistry Science Center
ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

Contract Chemistry Laboratory Method - Method 36 Inductively Coupled Plasma-Optical Emission Spectrometry-Mass Spectrometry (ICP-OES-MS) / Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) Water and Method 37 Trace Levels Water.

By
Geology, Geophysics, and Geochemistry Science Center
Aqua Regia Digestion Method Aqua Regia Digestion Method
Aqua Regia Digestion Method

Aqua Regia Digestion Method

Aqua Regia Digestion Method

Contract Chemistry Laboratory Method - Method 35 Aqua Regia Digestion.

By
Geology, Geophysics, and Geochemistry Science Center
Aqua Regia Digestion Method

Aqua Regia Digestion Method

Aqua Regia Digestion Method

Contract Chemistry Laboratory Method - Method 35 Aqua Regia Digestion.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration Hg in Solid Samples Method High Concentration Hg in Solid Samples Method
High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

Contract Chemistry Laboratory Method - Method 7 High Concentration Mercury (Hg) in solid samples.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

Contract Chemistry Laboratory Method - Method 7 High Concentration Mercury (Hg) in solid samples.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method
High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 27 High Concentration Rare Earth Elements by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS), Sodium Peroxide Fusion.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 27 High Concentration Rare Earth Elements by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS), Sodium Peroxide Fusion.

By
Geology, Geophysics, and Geochemistry Science Center
61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method 61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method
61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 25 Sixty-One Elements by Inductively Coupled Plasma-Optical Emission Spectroscopy-Mass Spectroscopy (ICP-OES-MS), Sodium Peroxide Fusion (ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 25 Sixty-One Elements by Inductively Coupled Plasma-Optical Emission Spectroscopy-Mass Spectroscopy (ICP-OES-MS), Sodium Peroxide Fusion (ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Essential and Non-Essential Water Method Essential and Non-Essential Water Method
Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Contract Chemistry Laboratory Method - Method 11 Essential and Non-Essential Water.

By
Geology, Geophysics, and Geochemistry Science Center
Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Contract Chemistry Laboratory Method - Method 11 Essential and Non-Essential Water.

By
Geology, Geophysics, and Geochemistry Science Center
Major Elements by WDXRF Method Major Elements by WDXRF Method
Major Elements by WDXRF Method

Major Elements by WDXRF Method

Major Elements by WDXRF Method

Contract Chemistry Laboratory Method - Method 18 Major Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
Major Elements by WDXRF Method

Major Elements by WDXRF Method

Major Elements by WDXRF Method

Contract Chemistry Laboratory Method - Method 18 Major Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
REEs by WDXRF Method REEs by WDXRF Method
REEs by WDXRF Method

REEs by WDXRF Method

REEs by WDXRF Method

Contract Chemistry Laboratory Method - Method 20 Rare Earth Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
REEs by WDXRF Method

REEs by WDXRF Method

REEs by WDXRF Method

Contract Chemistry Laboratory Method - Method 20 Rare Earth Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
Carbonate Carbon (Inorganic Carbon) Method Carbonate Carbon (Inorganic Carbon) Method
Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Contract Chemistry Laboratory Method - Method 3 Carbonate Carbon (Inorganic Carbon).

By
Geology, Geophysics, and Geochemistry Science Center
Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Contract Chemistry Laboratory Method - Method 3 Carbonate Carbon (Inorganic Carbon).

By
Geology, Geophysics, and Geochemistry Science Center
Mercury Method Mercury Method
Mercury Method

Mercury Method

Mercury Method

Contract Chemistry Laboratory Method - Method 6 Mercury (Hg).

By
Geology, Geophysics, and Geochemistry Science Center
Mercury Method

Mercury Method

Mercury Method

Contract Chemistry Laboratory Method - Method 6 Mercury (Hg).

By
Geology, Geophysics, and Geochemistry Science Center
Fluoride Method Fluoride Method
Fluoride Method

Fluoride Method

Fluoride Method

Contract Chemistry Laboratory Method - Method 8 Fluoride (F).

By
Geology, Geophysics, and Geochemistry Science Center
Fluoride Method

Fluoride Method

Fluoride Method

Contract Chemistry Laboratory Method - Method 8 Fluoride (F).

By
Geology, Geophysics, and Geochemistry Science Center

Science and Products

Stacks of organized boxes containing trays of archived samples splits in the National Geochemical Sample Archive, Denver, CO.

Analytical Chemistry

The USGS Mineral Resources Program and other USGS scientists need specialized routine analysis in order to conduct their research. The Analytical Chemistry project facilitates the ability of USGS scientists to obtain needed analyses.
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center
Analytical Chemistry

Analytical Chemistry

The USGS Mineral Resources Program and other USGS scientists need specialized routine analysis in order to conduct their research. The Analytical Chemistry project facilitates the ability of USGS scientists to obtain needed analyses.
Learn More

Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023 Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023

The data set contains geochemical data for 1,524,014 rock, sediment, soil, and mineral samples collected by the U.S. Geological Survey within US state, territory or Economic Exclusive Zone (EEZ) boundaries, and analyzed from 1962 through 2023 either in the analytical laboratories of the Geologic Discipline of the USGS or by contract with commercial analytical laboratories. These data...
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Geochemical data generated by projects funded by the USGS Earth Mapping Resources Initiative (ver. 12.0, December 2025) Geochemical data generated by projects funded by the USGS Earth Mapping Resources Initiative (ver. 12.0, December 2025)

The geochemical data included here were generated as part of the Earth Mapping Resources Initiative (Earth MRI), which was developed by the U.S. Geological Survey (USGS) in response to a Federal directive calling on various Federal agencies to address potential vulnerabilities in the Nation’s supply of critical mineral resources. Earth MRI is a partnership between the USGS, State...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Data from the Chemical Analysis of Archived Stream-Sediment Samples, Alaska Data from the Chemical Analysis of Archived Stream-Sediment Samples, Alaska

This data release contains the elemental concentration data for more than 1700 archived stream-sediment samples collected in Alaska. Samples were retrieved from the USGS Mineral Program's sample archive in Denver, CO, and the Alaska Division of Geological and Geophysical Surveys Geologic Materials Center in Anchorage, AK. All samples were analyzed using a multi-element analytical method...
By
Alaska Science Center

Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah

Beginning in November of 2015, the U.S. Geological Survey (USGS) undertook a project to reanalyze approximately 60,000 archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) project from selected areas in Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah. A small amount...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Reanalysis of Additional Selected Archived NURE-HSSR Sediment Samples from Idaho and Montana Reanalysis of Additional Selected Archived NURE-HSSR Sediment Samples from Idaho and Montana

In December of 2018, the U.S. Geological Survey (USGS) signed a Technical Assistance Agreement with a third party to reanalyze 2,324 archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) project from selected areas in Idaho and Montana. A small amount (approximately 0.25 grams [g]) of sieved...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Global Geochemical Database for Critical Minerals in Archived Mine Samples Global Geochemical Database for Critical Minerals in Archived Mine Samples

The Critical Minerals in Archived Mine Samples Database (CMDB) contains chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States. In addition, the database contains samples from archetypal deposits from 27 other countries in North America, South America, Asia, Africa and Europe. Samples were obtained from archived ore...
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Alaska Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Alaska

Selected archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program, were reanalyzed by the U.S. Geological Survey (USGS) as part of a NURE-HSSR Reanalysis project (Smith and others, 2018). A small amount (approximately 0.25 grams [g]) of sieved less than 75-micron sample material was...
By
Geology, Geophysics, and Geochemistry Science Center

Earth Mapping Resources Initiative protocols—Sampling hard-rock mine waste and perpetual mine water sources Earth Mapping Resources Initiative protocols—Sampling hard-rock mine waste and perpetual mine water sources

Supporting the overarching goal to evaluate critical minerals nationwide, the mine waste characterization effort in the U.S. Geological Survey (USGS) Earth Mapping Resources Initiative has created a series of protocols to standardize sampling carried out under this effort by the participating State geological surveys and their cooperators. The protocols are based on published, reviewed...
Authors
Kate M. Campbell, Robert R. Seal, Nadine M. Piatak, Jaime S. Azain, Jean M. Morrison, Sarah Jane White, Andrew H. Manning, Katherine Walton-Day, JoAnn M. Holloway, Bronwen Wang
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Colorado Water Science Center, Geology, Energy & Minerals Science Center, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Chemical analysis of archived stream-sediment samples, Alaska Chemical analysis of archived stream-sediment samples, Alaska

Geochemical data are presented for more than 1,500 archived stream-sediment samples and accompanying quality control samples. The archived sediments were reanalyzed to improve the stream geochemical dataset for Alaska and to support ongoing U.S. Geological Survey (USGS) studies. Sediment samples were primarily from the USGS Mineral Resources Program’s sample archive in Denver, Colorado...
Authors
Bronwen Wang, George N.D. Case, Mathew Granitto, Keith A. Labay, Nora B. Shew, Andrew D. Ingraham, Jaime S. Azain, Zachary C. Bueghly, Susan M. Karl, Karen D. Kelley
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Data release of reprocessed select National Uranium Resources Evaluation program samples in Wyoming Data release of reprocessed select National Uranium Resources Evaluation program samples in Wyoming

The U.S. Atomic Energy Commission established the National Uranium Resources Evaluation (NURE) program in 1973 to identify uranium resources throughout the United States. Part of this program focused on the collection of stream-sediment samples and subsequent geochemical analyses of these samples for uranium, in addition to 47 other elements. As part of the original program, 18,424...
Authors
David W. Lucke, Steven M. Smith, Jaime S. Azain, Andrew David Ingraham
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Inmachuk, Kugruk, Kiwalik, and Koyuk River drainages, Granite Mountain, and the northern Darby Mountains, Bendeleben, Candle, Kotzebue, and Solomon quadrangles, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Inmachuk, Kugruk, Kiwalik, and Koyuk River drainages, Granite Mountain, and the northern Darby Mountains, Bendeleben, Candle, Kotzebue, and Solomon quadrangles, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Kougarok area, Bendeleben and Teller quadrangles, Seward Peninsula, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Kougarok area, Bendeleben and Teller quadrangles, Seward Peninsula, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Haines area, Juneau and Skagway quadrangles, southeast Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Haines area, Juneau and Skagway quadrangles, southeast Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Tonsina area, Valdez Quadrangle, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Tonsina area, Valdez Quadrangle, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the northeastern Alaska Range, Healy, Mount Hayes, Nabesna, and Tanacross quadrangles, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the northeastern Alaska Range, Healy, Mount Hayes, Nabesna, and Tanacross quadrangles, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Zane Hills, Hughes and Shungnak quadrangles, Alaska Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Zane Hills, Hughes and Shungnak quadrangles, Alaska

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
By
Geology, Geophysics, and Geochemistry Science Center

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

The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data...
Authors
Melanie B. Werdon, Jaime S. Azain, Matthew Granitto
By
Geology, Geophysics, and Geochemistry Science Center

Geochemical Data Portal for Rock, Sediment, Soil, and Mineral Samples, United States and Territories Geochemical Data Portal for Rock, Sediment, Soil, and Mineral Samples, United States and Territories

The Geochemical Data Portal assembles, reformats, corrects, and archives data obtained from the geochemical analysis of geologic samples collected for USGS and Department of Energy studies.
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center
Filter Total Items: 34
Ore Grade 61 Element ICP-MS, Aqua Regia Method Ore Grade 61 Element ICP-MS, Aqua Regia Method
Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Aqua Regia Digestion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Ore Grade 61 Element ICP-MS, Aqua Regia Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Aqua Regia Digestion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method
Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-OES, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method
Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Ore Grade 61 Element ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 26 Ore Grade Sixty-One Element by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Sodium Peroxide Fusion (Ore Grade ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method
Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Contract Chemistry Laboratory Method and Fee - Method 23 Highly Mineralized Samples by Strong Acid Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Highly Mineralized Samples by Acid Digestion and ICP-OES and ICP-MS Method

Contract Chemistry Laboratory Method and Fee - Method 23 Highly Mineralized Samples by Strong Acid Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
PGE's by NiS Fire Assay and ICP-MS PGE's by NiS Fire Assay and ICP-MS
PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

Contract Chemistry Laboratory Method - Method 15 Platinum Group Elements (PGEs) by Nickel Sulfide (NiS) Fire Assay and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

PGE's by NiS Fire Assay and ICP-MS

Contract Chemistry Laboratory Method - Method 15 Platinum Group Elements (PGEs) by Nickel Sulfide (NiS) Fire Assay and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

By
Geology, Geophysics, and Geochemistry Science Center
Acid Base Accounting Method Acid Base Accounting Method
Acid Base Accounting Method

Acid Base Accounting Method

Acid Base Accounting Method

Contract Chemistry Laboratory Method - Method 5 Acid Base Accounting

By
Geology, Geophysics, and Geochemistry Science Center
Acid Base Accounting Method

Acid Base Accounting Method

Acid Base Accounting Method

Contract Chemistry Laboratory Method - Method 5 Acid Base Accounting

By
Geology, Geophysics, and Geochemistry Science Center
Graphite Carbon Method Graphite Carbon Method
Graphite Carbon Method

Graphite Carbon Method

Graphite Carbon Method

Contract Chemistry Laboratory Method - Method 4 Graphite Carbon.

By
Geology, Geophysics, and Geochemistry Science Center
Graphite Carbon Method

Graphite Carbon Method

Graphite Carbon Method

Contract Chemistry Laboratory Method - Method 4 Graphite Carbon.

By
Geology, Geophysics, and Geochemistry Science Center
Dissolved Organic Carbon Method Dissolved Organic Carbon Method
Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Contract Chemistry Laboratory Method - Method 42 Dissolved Organic Carbon (DOC).

By
Geology, Geophysics, and Geochemistry Science Center
Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Dissolved Organic Carbon Method

Contract Chemistry Laboratory Method - Method 42 Dissolved Organic Carbon (DOC).

By
Geology, Geophysics, and Geochemistry Science Center
Alkalinity Method Alkalinity Method
Alkalinity Method

Alkalinity Method

Alkalinity Method

Contract Chemistry Laboratory Method - Method 41 Alkalinity

By
Geology, Geophysics, and Geochemistry Science Center
Alkalinity Method

Alkalinity Method

Alkalinity Method

Contract Chemistry Laboratory Method - Method 41 Alkalinity

By
Geology, Geophysics, and Geochemistry Science Center
Ion Chromatography in Aqueous Solution Ion Chromatography in Aqueous Solution
Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Contract Chemistry Laboratory Method - Method 40 Ion Chromatography (IC) in Aqueous Solution.

By
Geology, Geophysics, and Geochemistry Science Center
Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Ion Chromatography in Aqueous Solution

Contract Chemistry Laboratory Method - Method 40 Ion Chromatography (IC) in Aqueous Solution.

By
Geology, Geophysics, and Geochemistry Science Center
ICP-OES-MS / ICP-MS Water Method ICP-OES-MS / ICP-MS Water Method
ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

Contract Chemistry Laboratory Method - Method 36 Inductively Coupled Plasma-Optical Emission Spectrometry-Mass Spectrometry (ICP-OES-MS) / Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) Water and Method 37 Trace Levels Water.

By
Geology, Geophysics, and Geochemistry Science Center
ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

ICP-OES-MS / ICP-MS Water Method

Contract Chemistry Laboratory Method - Method 36 Inductively Coupled Plasma-Optical Emission Spectrometry-Mass Spectrometry (ICP-OES-MS) / Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) Water and Method 37 Trace Levels Water.

By
Geology, Geophysics, and Geochemistry Science Center
Aqua Regia Digestion Method Aqua Regia Digestion Method
Aqua Regia Digestion Method

Aqua Regia Digestion Method

Aqua Regia Digestion Method

Contract Chemistry Laboratory Method - Method 35 Aqua Regia Digestion.

By
Geology, Geophysics, and Geochemistry Science Center
Aqua Regia Digestion Method

Aqua Regia Digestion Method

Aqua Regia Digestion Method

Contract Chemistry Laboratory Method - Method 35 Aqua Regia Digestion.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration Hg in Solid Samples Method High Concentration Hg in Solid Samples Method
High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

Contract Chemistry Laboratory Method - Method 7 High Concentration Mercury (Hg) in solid samples.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

High Concentration Hg in Solid Samples Method

Contract Chemistry Laboratory Method - Method 7 High Concentration Mercury (Hg) in solid samples.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method
High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 27 High Concentration Rare Earth Elements by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS), Sodium Peroxide Fusion.

By
Geology, Geophysics, and Geochemistry Science Center
High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

High Concentration REEs by ICP-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 27 High Concentration Rare Earth Elements by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS), Sodium Peroxide Fusion.

By
Geology, Geophysics, and Geochemistry Science Center
61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method 61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method
61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 25 Sixty-One Elements by Inductively Coupled Plasma-Optical Emission Spectroscopy-Mass Spectroscopy (ICP-OES-MS), Sodium Peroxide Fusion (ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

61 Elements by ICP-OES-MS, Sodium Peroxide Fusion Method

Contract Chemistry Laboratory Method - Method 25 Sixty-One Elements by Inductively Coupled Plasma-Optical Emission Spectroscopy-Mass Spectroscopy (ICP-OES-MS), Sodium Peroxide Fusion (ICP-61).

By
Geology, Geophysics, and Geochemistry Science Center
Essential and Non-Essential Water Method Essential and Non-Essential Water Method
Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Contract Chemistry Laboratory Method - Method 11 Essential and Non-Essential Water.

By
Geology, Geophysics, and Geochemistry Science Center
Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Essential and Non-Essential Water Method

Contract Chemistry Laboratory Method - Method 11 Essential and Non-Essential Water.

By
Geology, Geophysics, and Geochemistry Science Center
Major Elements by WDXRF Method Major Elements by WDXRF Method
Major Elements by WDXRF Method

Major Elements by WDXRF Method

Major Elements by WDXRF Method

Contract Chemistry Laboratory Method - Method 18 Major Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
Major Elements by WDXRF Method

Major Elements by WDXRF Method

Major Elements by WDXRF Method

Contract Chemistry Laboratory Method - Method 18 Major Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
REEs by WDXRF Method REEs by WDXRF Method
REEs by WDXRF Method

REEs by WDXRF Method

REEs by WDXRF Method

Contract Chemistry Laboratory Method - Method 20 Rare Earth Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
REEs by WDXRF Method

REEs by WDXRF Method

REEs by WDXRF Method

Contract Chemistry Laboratory Method - Method 20 Rare Earth Elements by Wavelength Dispersive X-Ray Fluorescence (WDXRF).

By
Geology, Geophysics, and Geochemistry Science Center
Carbonate Carbon (Inorganic Carbon) Method Carbonate Carbon (Inorganic Carbon) Method
Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Contract Chemistry Laboratory Method - Method 3 Carbonate Carbon (Inorganic Carbon).

By
Geology, Geophysics, and Geochemistry Science Center
Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Carbonate Carbon (Inorganic Carbon) Method

Contract Chemistry Laboratory Method - Method 3 Carbonate Carbon (Inorganic Carbon).

By
Geology, Geophysics, and Geochemistry Science Center
Mercury Method Mercury Method
Mercury Method

Mercury Method

Mercury Method

Contract Chemistry Laboratory Method - Method 6 Mercury (Hg).

By
Geology, Geophysics, and Geochemistry Science Center
Mercury Method

Mercury Method

Mercury Method

Contract Chemistry Laboratory Method - Method 6 Mercury (Hg).

By
Geology, Geophysics, and Geochemistry Science Center
Fluoride Method Fluoride Method
Fluoride Method

Fluoride Method

Fluoride Method

Contract Chemistry Laboratory Method - Method 8 Fluoride (F).

By
Geology, Geophysics, and Geochemistry Science Center
Fluoride Method

Fluoride Method

Fluoride Method

Contract Chemistry Laboratory Method - Method 8 Fluoride (F).

By
Geology, Geophysics, and Geochemistry Science Center
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