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Lyle Mars (Former Employee)

Science and Products

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Lithium Illustration from Open-File Report 2013-1006

Spectral Characteristics and Mapping of Lithium-rich Playas for Use in Western U.S. Basin and Range Mineral Assessment of Lithium

Project objectives are to compile and examine mineral maps of the known lithium-bearing playas in the U.S., Chile, and Argentina using field and remote sensing data to better understand the mineralogy of these deposits. After mineral assemblages are identified, mineral maps for lithium-rich plays will be compiled using ASTER data.
By
Mineral Resources Program, Geology, Energy & Minerals Science Center
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Spectral Characteristics and Mapping of Lithium-rich Playas for Use in Western U.S. Basin and Range Mineral Assessment of Lithium

Project objectives are to compile and examine mineral maps of the known lithium-bearing playas in the U.S., Chile, and Argentina using field and remote sensing data to better understand the mineralogy of these deposits. After mineral assemblages are identified, mineral maps for lithium-rich plays will be compiled using ASTER data.
Learn More

Linear Deconvolution Mineral Maps of Compositionally Variable Dune Fields in the Western United States and Alaska

These geotiffs represent the raster GIS outputs of Linear Deconvolution (Linear Spectral Unmixing) analysis of ASTER image pixels covering various sand dune and sand sheet fields throughout the Western United States and Alaska. The accompanying sets of zip file contains linear deconvolution derived mineral fractional abundance maps for various 2-, 3-, 4,- and 5-component mixture models of various
By
Mineral Resources Program, Geology, Energy & Minerals Science Center

Visible, Near Infrared, Shortwave Infrared and Thermal Infrared Laboratory Spectra of Samples of Compositionally Variable Dune Fields in the Western United States and Alaska

This data represents laboratory reflectance and emissivity spectral measurements of dune sand samples collected from a variety of dune types and mineralogical compositions from eight dune field locations in Alaska, Arizona, California, Colorado, Idaho, Nevada and New Mexico (labeled and designated as samples DS-1 through DS-8). Each sample were sieved into various size classes and measured both pr
By
Mineral Resources Program, Geology, Energy & Minerals Science Center
Image: Silicified Ridge At Goldfield, Nevada
Silicified Ridge At Goldfield, Nevada
Silicified Ridge At Goldfield, Nevada
Image: Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Taking notes on a silicified ridge at Goldfield, Nevada. Silicified ridges are typically associated with epithermal gold deposits.

By
Mineral Resources Program, Communications and Publishing
Image: Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Taking notes on a silicified ridge at Goldfield, Nevada. Silicified ridges are typically associated with epithermal gold deposits.

By
Mineral Resources Program, Communications and Publishing
Image: Kaolinite Hill
Kaolinite Hill
Kaolinite Hill
Image: Kaolinite Hill

Kaolinite Hill

Kaolinite Hill

Kaolinite hill in Cuprite, Nevada is one the premier calibration sites for imaging spectrometers used in mineral mapping.

By
Mineral Resources Program, Communications and Publishing
Image: Kaolinite Hill

Kaolinite Hill

Kaolinite Hill

Kaolinite hill in Cuprite, Nevada is one the premier calibration sites for imaging spectrometers used in mineral mapping.

By
Mineral Resources Program, Communications and Publishing

Porphyry copper potential of the U.S. Southern Basin and Range using ASTER data integrated with geochemical and geologic datasets to assess potential near-surface deposits in well-explored permissive tracts

ArcGIS was used to spatially assess and rank potential porphyry copper deposits using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data together with geochemical and geologic datasets in order to estimate undiscovered deposits in the southern Basin and Range Province in the southwestern United States. The assessment was done using a traditional expert opinion three-part m
Authors
John C. Mars, Gilpin R. Robinson,, Jane M. Hammarstrom, Lukas Zürcher, Helen A. Whitney, Federico Solano, Mark E. Gettings, Stephen Ludington
By
Mineral Resources Program, Geology, Energy & Minerals Science Center, Geology, Minerals, Energy, and Geophysics Science Center

Tectono-magmatic evolution of porphyry belts in the central Tethys region of Turkey, the Caucasus, Iran, western Pakistan, and southern Afghanistan

Exploration in the central Tethys region of Turkey, Armenia, Azerbaijan, Georgia, Iran, and western Pakistan has led to the identification of the giant Reko Diq (24 Mt Cu and 1300 t Au), Sar Cheshmeh (8.9 Mt Cu and 0.46 Mt Mo), Sungun (5.1 Mt Cu and 0.20 Mt Mo), and Kadjaran (4.6 Mt Cu, 0.94 Mt Mo, and 1100 t Au), and 10 other large (1–2 Mt Cu) porphyry deposits including Saindak, Cevizlidere, Teg
Authors
Lukas Zürcher, Arthur A. Bookstrom, Jane M. Hammarstrom, John C. Mars, Stephen Ludington, Michael L. Zientek, Pamela Dunlap, John Wallis
By
Geology, Energy & Minerals Science Center, Geology, Minerals, Energy, and Geophysics Science Center

New method to integrate remotely sensed hydrothermal alteration mapping into quantitative mineral resource assessments

Hydrothermal alteration data mapped using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) were compiled into hydrothermal alteration polygons for use in an assessment of porphyry copper mineral resource potential in the southwestern United States. Hydrothermal alteration polygons along with geochemistry, gravity and magnetic, lithologic, and deposit and prospects data we
Authors
John C. Mars, Jane M. Hammarstrom, Gilpin R. Robinson, Stephen Ludington, Lukas Zürcher, Helen W. Folger, Mark E. Gettings, Federico Solano, Thomas Kress
By
Geology, Energy & Minerals Science Center

Undiscovered porphyry copper resources in the Urals—A probabilistic mineral resource assessment

A probabilistic mineral resource assessment of metal resources in undiscovered porphyry copper deposits of the Ural Mountains in Russia and Kazakhstan was done using a quantitative form of mineral resource assessment. Permissive tracts were delineated on the basis of mapped and inferred subsurface distributions of igneous rocks assigned to tectonic zones that include magmatic arcs where the occurr
Authors
Jane M. Hammarstrom, Mark J. Mihalasky, Stephen Ludington, Jeffrey Phillips, Byron R. Berger, Paul Denning, Connie Dicken, John C. Mars, Michael L. Zientek, Richard J. Herrington, Reimar Seltmann
By
Mineral Resources Program, Geology, Energy & Minerals Science Center

Relationship between porphyry systems, crustal preservation levels, and amount of exploration in magmatic belts of the Central Tethys Region

Tectonic, geologic, geochemical, geochronologic, and ore deposit data from the U.S. Geological Survey-led assessment of 26 porphyry belts identified in the central Tethys region of Turkey, the Caucasus, Iran, western Pakistan, and southern Afghanistan relate porphyry mineralization to the tectonomagmatic evolution of the region and associated subduction and postsubduction processes. However, uplif
Authors
Lukas Zürcher, Jane M. Hammarstrom, John C. Mars, Stephen Ludington, Michael L. Zientek
By
Energy and Minerals Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geology, Energy & Minerals Science Center, Geology, Minerals, Energy, and Geophysics Science Center

Upper Devonian–Mississippian stratigraphic framework of the Arkoma Basin and distribution of potential source-rock facies in the Woodford–Chattanooga and Fayetteville–Caney shale-gas systems

Wireline logs were used to document the stratigraphic framework of Upper Devonian–Mississippian strata in the Arkoma Basin, and maps of high-gamma ray (HGR) log response were used to analyze the spatial distribution of potential source rocks in the Woodford–Chattanooga and Fayetteville–Caney shale-gas systems. The Woodford–Chattanooga shale is a transgressive deposit that accumulated on an arid co
Authors
David W. Houseknecht, William A. Rouse, Stanley T. Paxton, John C. Mars, Bryant R. Fulk
By
Energy Resources Program, Geology, Energy & Minerals Science Center

Tectono-magmatic evolution and distribution of porphyry Cu systems in the Central Tethys Region of Turkey, the Caucasus, Iran, and southern Pakistan

Recent compilation of geodynamic, geochemical, geochronologic, and ore deposits data provided an opportunity to review the continental margin, intra-oceanic, and post-collisional tectonic settings in the Central Tethys Region. These settings formed during sequential rifting of microcontinents from the passive margin of Gondwana, their northward transport across the Neo-Tethys Ocean, and their coll
Authors
Lukas Zürcher, Arthur A. Bookstrom, Jane M. Hammarstrom, John C. Mars, Stephen Ludington, Michael L. Zientek, Pamela Dunlap, John C. Wallis
By
Geology, Minerals, Energy, and Geophysics Science Center

NASA 2008 HyspIRI whitepaper and workshop report

From October 21-23, 2008, NASA held a three-day workshop to consider the Hyperspectral Infrared Imager (HyspIRI) mission recommended for implementation by the 2007 report from the U.S. National Research Council Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond, also known as the Earth Science Decadal Survey. The open workshop provided a forum to present
Authors
John C. Mars
By
Geology, Energy & Minerals Science Center

Science and Products

link
Lithium Illustration from Open-File Report 2013-1006

Spectral Characteristics and Mapping of Lithium-rich Playas for Use in Western U.S. Basin and Range Mineral Assessment of Lithium

Project objectives are to compile and examine mineral maps of the known lithium-bearing playas in the U.S., Chile, and Argentina using field and remote sensing data to better understand the mineralogy of these deposits. After mineral assemblages are identified, mineral maps for lithium-rich plays will be compiled using ASTER data.
By
Mineral Resources Program, Geology, Energy & Minerals Science Center
link

Spectral Characteristics and Mapping of Lithium-rich Playas for Use in Western U.S. Basin and Range Mineral Assessment of Lithium

Project objectives are to compile and examine mineral maps of the known lithium-bearing playas in the U.S., Chile, and Argentina using field and remote sensing data to better understand the mineralogy of these deposits. After mineral assemblages are identified, mineral maps for lithium-rich plays will be compiled using ASTER data.
Learn More

Linear Deconvolution Mineral Maps of Compositionally Variable Dune Fields in the Western United States and Alaska

These geotiffs represent the raster GIS outputs of Linear Deconvolution (Linear Spectral Unmixing) analysis of ASTER image pixels covering various sand dune and sand sheet fields throughout the Western United States and Alaska. The accompanying sets of zip file contains linear deconvolution derived mineral fractional abundance maps for various 2-, 3-, 4,- and 5-component mixture models of various
By
Mineral Resources Program, Geology, Energy & Minerals Science Center

Visible, Near Infrared, Shortwave Infrared and Thermal Infrared Laboratory Spectra of Samples of Compositionally Variable Dune Fields in the Western United States and Alaska

This data represents laboratory reflectance and emissivity spectral measurements of dune sand samples collected from a variety of dune types and mineralogical compositions from eight dune field locations in Alaska, Arizona, California, Colorado, Idaho, Nevada and New Mexico (labeled and designated as samples DS-1 through DS-8). Each sample were sieved into various size classes and measured both pr
By
Mineral Resources Program, Geology, Energy & Minerals Science Center
Image: Silicified Ridge At Goldfield, Nevada
Silicified Ridge At Goldfield, Nevada
Silicified Ridge At Goldfield, Nevada
Image: Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Taking notes on a silicified ridge at Goldfield, Nevada. Silicified ridges are typically associated with epithermal gold deposits.

By
Mineral Resources Program, Communications and Publishing
Image: Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Silicified Ridge At Goldfield, Nevada

Taking notes on a silicified ridge at Goldfield, Nevada. Silicified ridges are typically associated with epithermal gold deposits.

By
Mineral Resources Program, Communications and Publishing
Image: Kaolinite Hill
Kaolinite Hill
Kaolinite Hill
Image: Kaolinite Hill

Kaolinite Hill

Kaolinite Hill

Kaolinite hill in Cuprite, Nevada is one the premier calibration sites for imaging spectrometers used in mineral mapping.

By
Mineral Resources Program, Communications and Publishing
Image: Kaolinite Hill

Kaolinite Hill

Kaolinite Hill

Kaolinite hill in Cuprite, Nevada is one the premier calibration sites for imaging spectrometers used in mineral mapping.

By
Mineral Resources Program, Communications and Publishing

Porphyry copper potential of the U.S. Southern Basin and Range using ASTER data integrated with geochemical and geologic datasets to assess potential near-surface deposits in well-explored permissive tracts

ArcGIS was used to spatially assess and rank potential porphyry copper deposits using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data together with geochemical and geologic datasets in order to estimate undiscovered deposits in the southern Basin and Range Province in the southwestern United States. The assessment was done using a traditional expert opinion three-part m
Authors
John C. Mars, Gilpin R. Robinson,, Jane M. Hammarstrom, Lukas Zürcher, Helen A. Whitney, Federico Solano, Mark E. Gettings, Stephen Ludington
By
Mineral Resources Program, Geology, Energy & Minerals Science Center, Geology, Minerals, Energy, and Geophysics Science Center

Tectono-magmatic evolution of porphyry belts in the central Tethys region of Turkey, the Caucasus, Iran, western Pakistan, and southern Afghanistan

Exploration in the central Tethys region of Turkey, Armenia, Azerbaijan, Georgia, Iran, and western Pakistan has led to the identification of the giant Reko Diq (24 Mt Cu and 1300 t Au), Sar Cheshmeh (8.9 Mt Cu and 0.46 Mt Mo), Sungun (5.1 Mt Cu and 0.20 Mt Mo), and Kadjaran (4.6 Mt Cu, 0.94 Mt Mo, and 1100 t Au), and 10 other large (1–2 Mt Cu) porphyry deposits including Saindak, Cevizlidere, Teg
Authors
Lukas Zürcher, Arthur A. Bookstrom, Jane M. Hammarstrom, John C. Mars, Stephen Ludington, Michael L. Zientek, Pamela Dunlap, John Wallis
By
Geology, Energy & Minerals Science Center, Geology, Minerals, Energy, and Geophysics Science Center

New method to integrate remotely sensed hydrothermal alteration mapping into quantitative mineral resource assessments

Hydrothermal alteration data mapped using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) were compiled into hydrothermal alteration polygons for use in an assessment of porphyry copper mineral resource potential in the southwestern United States. Hydrothermal alteration polygons along with geochemistry, gravity and magnetic, lithologic, and deposit and prospects data we
Authors
John C. Mars, Jane M. Hammarstrom, Gilpin R. Robinson, Stephen Ludington, Lukas Zürcher, Helen W. Folger, Mark E. Gettings, Federico Solano, Thomas Kress
By
Geology, Energy & Minerals Science Center

Undiscovered porphyry copper resources in the Urals—A probabilistic mineral resource assessment

A probabilistic mineral resource assessment of metal resources in undiscovered porphyry copper deposits of the Ural Mountains in Russia and Kazakhstan was done using a quantitative form of mineral resource assessment. Permissive tracts were delineated on the basis of mapped and inferred subsurface distributions of igneous rocks assigned to tectonic zones that include magmatic arcs where the occurr
Authors
Jane M. Hammarstrom, Mark J. Mihalasky, Stephen Ludington, Jeffrey Phillips, Byron R. Berger, Paul Denning, Connie Dicken, John C. Mars, Michael L. Zientek, Richard J. Herrington, Reimar Seltmann
By
Mineral Resources Program, Geology, Energy & Minerals Science Center

Relationship between porphyry systems, crustal preservation levels, and amount of exploration in magmatic belts of the Central Tethys Region

Tectonic, geologic, geochemical, geochronologic, and ore deposit data from the U.S. Geological Survey-led assessment of 26 porphyry belts identified in the central Tethys region of Turkey, the Caucasus, Iran, western Pakistan, and southern Afghanistan relate porphyry mineralization to the tectonomagmatic evolution of the region and associated subduction and postsubduction processes. However, uplif
Authors
Lukas Zürcher, Jane M. Hammarstrom, John C. Mars, Stephen Ludington, Michael L. Zientek
By
Energy and Minerals Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geology, Energy & Minerals Science Center, Geology, Minerals, Energy, and Geophysics Science Center

Upper Devonian–Mississippian stratigraphic framework of the Arkoma Basin and distribution of potential source-rock facies in the Woodford–Chattanooga and Fayetteville–Caney shale-gas systems

Wireline logs were used to document the stratigraphic framework of Upper Devonian–Mississippian strata in the Arkoma Basin, and maps of high-gamma ray (HGR) log response were used to analyze the spatial distribution of potential source rocks in the Woodford–Chattanooga and Fayetteville–Caney shale-gas systems. The Woodford–Chattanooga shale is a transgressive deposit that accumulated on an arid co
Authors
David W. Houseknecht, William A. Rouse, Stanley T. Paxton, John C. Mars, Bryant R. Fulk
By
Energy Resources Program, Geology, Energy & Minerals Science Center

Tectono-magmatic evolution and distribution of porphyry Cu systems in the Central Tethys Region of Turkey, the Caucasus, Iran, and southern Pakistan

Recent compilation of geodynamic, geochemical, geochronologic, and ore deposits data provided an opportunity to review the continental margin, intra-oceanic, and post-collisional tectonic settings in the Central Tethys Region. These settings formed during sequential rifting of microcontinents from the passive margin of Gondwana, their northward transport across the Neo-Tethys Ocean, and their coll
Authors
Lukas Zürcher, Arthur A. Bookstrom, Jane M. Hammarstrom, John C. Mars, Stephen Ludington, Michael L. Zientek, Pamela Dunlap, John C. Wallis
By
Geology, Minerals, Energy, and Geophysics Science Center

NASA 2008 HyspIRI whitepaper and workshop report

From October 21-23, 2008, NASA held a three-day workshop to consider the Hyperspectral Infrared Imager (HyspIRI) mission recommended for implementation by the 2007 report from the U.S. National Research Council Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond, also known as the Earth Science Decadal Survey. The open workshop provided a forum to present
Authors
John C. Mars
By
Geology, Energy & Minerals Science Center
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