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John D Horton

John Horton is a Physical Scientist with the Geology, Geophysics, and Geochemistry Science Center.

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mine symbol map for USA and Puerto Rico

USMIN Mineral Deposit Database

Our objective is to develop a national-scale, geospatial database that is the authoritative source of the most important mines, mineral deposits, and mineral districts of the United States.
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center
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USMIN Mineral Deposit Database

Our objective is to develop a national-scale, geospatial database that is the authoritative source of the most important mines, mineral deposits, and mineral districts of the United States.
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Image shows a screenshot of the web viewer for the State Geologic Map Compilation

GIS and Information Management - GGGSC

We support the geospatial component of Mineral Resources Program research and provide public access to research results and geospatial information. We facilitate all aspects of the data life cycle, including the publication and archiving of geospatial information and products. We also develop and steward national-scale data layers considered foundational to the Mineral Resources Program as well as...
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center
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GIS and Information Management - GGGSC

We support the geospatial component of Mineral Resources Program research and provide public access to research results and geospatial information. We facilitate all aspects of the data life cycle, including the publication and archiving of geospatial information and products. We also develop and steward national-scale data layers considered foundational to the Mineral Resources Program as well as...
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USGS science for a changing world

Mineral Resource Assessment Training

The USGS Mineral Resources Program conducts mineral resource assessments and is training USGS scientists in how to conduct these assessments for future work. As a practical exercise, the scientists will conduct an assessment for tungsten in the U.S.
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Mineral Resources Program, Geology, Minerals, Energy, and Geophysics Science Center
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Mineral Resource Assessment Training

The USGS Mineral Resources Program conducts mineral resource assessments and is training USGS scientists in how to conduct these assessments for future work. As a practical exercise, the scientists will conduct an assessment for tungsten in the U.S.
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Filter Total Items: 18

GIS Data for Reconnaissance Geologic Map of the Hells Canyon Study Area, Wallowa County, Oregon, and Idaho and Adams Counties, Idaho

This data release for the reconnaissance geologic map of the Hells Canyon Study Area, Wallowa County, Oregon, and Idaho and Adams Counties, Idaho, is a Geologic Map Schema (GeMS, 2020)-compliant version of the geologic map published in U.S. Geological Survey (USGS) Scientific Investigations Report Map SIR 2007-5046 (Simmons, et al, 2007).            The database represents the geology for the 625,
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data for the Geologic Map of the Arlington Quadrangle, Carbon County, Wyoming

This U.S. Geological Survey (USGS) data release for the geologic map of the Arlington quadrangle, Carbon County, Wyoming, is a Geologic Map Schema (GeMS, 2020)-compliant version of the printed geologic map published in USGS Geologic Map Quadrangle GQ-643 (Hyden and others, 1967). The database represents the geology for the 35,776-acre map plate at a publication scale of 1:24,000. References: Hyde
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data for Geologic Map of Precambrian Metasedimentary Rocks of The Medicine Bow Mountains, Albany and Carbon Counties, Wyoming

This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the geologic map of Precambrian metasedimentary rocks of the Medicine Bow Mountains, Albany and Carbon Counties, Wyoming (Houston and Karlstrom, 1992). Attribute tables and geospatial features (points, lines and polygons) conform to the Geologic Map Schema (GeMS, 2020) and represent the geologic map plates a
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Geology, Geophysics, and Geochemistry Science Center

GIS Data for Geologic Map of the Lake Owen Quadrangle, Albany County, Wyoming

This U.S. Geological Survey (USGS) data release presents a digital database of geospatially enabled vector layers and tabular data transcribed from the geologic map of the Lake Owen quadrangle, Albany County, Wyoming, which was originally published as U.S. Geological Survey Geologic Quadrangle Map GQ-1304 (Houston and Orback, 1976). The 7.5-minute Lake Owen quadrangle is located in southeastern Wy
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (ver. 10.0, May 2023)

Version 10.0 of these data are part of a larger U.S. Geological Survey (USGS) project to develop an updated geospatial database of mines, mineral deposits, and mineral regions in the United States. Mine and prospect-related symbols, such as those used to represent prospect pits, mines, adits, dumps, tailings, etc., hereafter referred to as 'mine' symbols or features, have been digitized from the 7
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data for Geologic and Structure Maps of the Kalispell 1 x 2 Degrees Quadrangle, Montana, and Alberta and British Columbia

The data release for the geologic and structure maps of the Kalispell 1 x 2 degrees quadrangle, Montana, and Alberta and British Columbia, is a Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map published in U.S. Geological Survey (USGS) Miscellaneous Investigations Series Map I-2267 (Harrison and others, 2000). The updated digital data present the attribu
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data for Geologic and Structure Maps of the Wallace 1 x 2 Degrees Quadrangle, Montana and Idaho

The data release for the geologic and structure maps of the Wallace 1 x 2 degrees quadrangle, Montana and Idaho, is a Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map published in U.S. Geological Survey (USGS) Miscellaneous Investigations Series Map I-1509-A (Harrison and others, 2000). The updated digital data present the attribute tables and geospatial
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data for Geologic Map of the Salmon National Forest and Vicinity, East-Central Idaho

The data release for the geologic map of the Salmon National Forest and vicinity, east-central Idaho, is a Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map published in U.S. Geological Survey (USGS) Geologic Investigations Series Map I-2765 (Evans and Green, 2003). The updated digital data present the attribute tables and geospatial features (points, lin
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data for Geology of the Payette National Forest and Vicinity, West-Central Idaho

The data release for the geology of Payette National Forest and vicinity, west-central Idaho, is a Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map published in U.S. Geological Survey (USGS) Professional Paper 1666 (Lund, 2004). The updated digital data present the attribute tables and geospatial features (points, lines and polygons) in the format that m
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data for Geologic Map of the Challis 1 x 2 Degrees Quadrangle, Idaho

The data release for the geologic map of the Challis 1 x 2 degrees quadrangle, Idaho, is a Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map published in U.S. Geological Survey (USGS) Miscellaneous Investigations I-1819 (Fisher and others, 1992). The updated digital data present the attribute tables and geospatial features (points, lines and polygons) in
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

GIS Data (ver. 2) for Geologic Terranes of the Hailey 1 x 2 Degrees Quadrangle and the Western Part of the Idaho Falls 1 x 2 Degrees Quadrangle, South-Central Idaho

The data release for the geologic terranes of the Hailey 1 x 2 degrees quadrangle and the western part of the Idaho Falls 1 x 2 degrees quadrangle, south-central Idaho is a Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map published in U.S. Geologic Survey (USGS) Bulletin 2064-A (Worl and Johnson, 1995). The updated digital data present the attribute tabl
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Data to accompany U.S. Geological Survey Fact Sheet 2020-3017: Pyrrhotite distribution in the conterminous United States

The mineral pyrrhotite, which is an unstable sulfide mineral, was present in crushed stone aggregate used in concrete foundations of homes in Connecticut and Massachusetts, many of those foundations are failing as the mineral weathers. Because of the substantial costs of lifting homes and replacing their foundations, in 2019 the U.S. Congress directed the U.S. Geological Survey?s (USGS) Mineral Re
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center
mine symbol map for USA and Puerto Rico
Data Release Prospect- and Mine-Related Features from USGS Maps V10
Data Release Prospect- and Mine-Related Features from USGS Maps V10
mine symbol map for USA and Puerto Rico

Data Release Prospect- and Mine-Related Features from USGS Maps V10

Data Release Prospect- and Mine-Related Features from USGS Maps V10

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the US

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Geology, Geophysics, and Geochemistry Science Center, Geology, Geophysics, and Geochemistry Science Center
mine symbol map for USA and Puerto Rico

Data Release Prospect- and Mine-Related Features from USGS Maps V10

Data Release Prospect- and Mine-Related Features from USGS Maps V10

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the US

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Geology, Geophysics, and Geochemistry Science Center, Geology, Geophysics, and Geochemistry Science Center
mine symbol map for conterminous US
Data Release Prospect- and Mine-Related Features from USGS Maps V9
Data Release Prospect- and Mine-Related Features from USGS Maps V9
mine symbol map for conterminous US

Data Release Prospect- and Mine-Related Features from USGS Maps V9

Data Release Prospect- and Mine-Related Features from USGS Maps V9

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the US

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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geology, Geophysics, and Geochemistry Science Center
mine symbol map for conterminous US

Data Release Prospect- and Mine-Related Features from USGS Maps V9

Data Release Prospect- and Mine-Related Features from USGS Maps V9

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the US

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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geology, Geophysics, and Geochemistry Science Center
Filter Total Items: 42

Pyrrhotite distribution in the conterminous United States, 2020

In parts of Connecticut and Massachusetts, foundations of some homes are cracking and crumbling. Failing foundations can reduce the market value of a home and lifting a house to replace and repour a foundation is an expensive undertaking. In response, some homeowners are defaulting on their mortgages and abandoning their homes. The culprit is pyrrhotite, which occurs in construction aggregate (cru
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Jeffrey L. Mauk, Thomas C. Crafford, John D. Horton, Carma A. San Juan, Gilpin R. Robinson,
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Geology, Geophysics, and Geochemistry Science Center

The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States

The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (https://doi. org/10.5066/F7WH2N65) represents a seamless, spatial database of 48 State geologic maps that range from 1:50,000 to 1:1,000,000 scale. A national digital geologic map database is essential in interpreting other datasets that support numerous types of national-scale studies and assessments, such as
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John D. Horton, Carma A. San Juan, Douglas B. Stoeser
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Geology and mineral resources of the North-Central Idaho Sagebrush Focal Area: Chapter C in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

SummaryThe U.S. Department of the Interior has proposed to withdraw approximately 10 million acres of Federal lands from mineral entry (subject to valid existing rights) from 12 million acres of lands defined as Sagebrush Focal Areas (SFAs) in Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (for further discussion on the lands involved see Scientific Investigations Report 2016–5089–A). The purpo
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Karen Lund, Lukas Zürcher, Albert H. Hofstra, Bradley S. Van Gosen, Mary Ellen Benson, Stephen E. Box, Eric D. Anderson, Donald I. Bleiwas, Jacob DeAngelo, Ronald M. Drake, Gregory L. Fernette, Stuart A. Giles, Jonathan M. G. Glen, Jon E. Haacke, John D. Horton, David John, Gilpin R. Robinson, Barnaby W. Rockwell, Carma A. San Juan, Brian N. Shaffer, Steven M. Smith, Colin F. Williams
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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, Geology, Geophysics, and Geochemistry Science Center, National Minerals Information Center

Geology and mineral resources of the Southwestern and South-Central Wyoming Sagebrush Focal Area, Wyoming, and the Bear River Watershed Sagebrush Focal Area, Wyoming and Utah: Chapter E in Mineral resources of the Sagebrush Focal Areas of Idaho, Monta

SummaryThe U.S. Department of the Interior has proposed to withdraw approximately 10 million acres of Federal lands from mineral entry (subject to valid existing rights) from 12 million acres of lands defined as Sagebrush Focal Areas (SFAs) in Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (for further discussion on the lands involved see Scientific Investigations Report 2016–5089–A). The purpo
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Anna B. Wilson, Timothy S. Hayes, Mary Ellen Benson, Douglas B. Yager, Eric D. Anderson, Donald I. Bleiwas, Jacob DeAngelo, Connie L. Dicken, Ronald M. Drake, Gregory L. Fernette, Stuart A. Giles, Jonathan M. G. Glen, Jon E. Haacke, John D. Horton, Heather L. Parks, Barnaby W. Rockwell, Colin F. Williams
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Energy and Minerals Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geology, Minerals, Energy, and Geophysics Science Center, Geology, Geophysics, and Geochemistry Science Center, National Minerals Information Center

Geology and mineral resources of the North-Central Montana Sagebrush Focal Area: Chapter D in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

SummaryThe U.S. Department of the Interior has proposed to withdraw approximately 10 million acres of Federal lands from mineral entry (subject to valid existing rights) from 12 million acres of lands defined as Sagebrush Focal Areas (SFAs) in Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (for further discussion on the lands involved see Scientific Investigations Report 2016–5089–A). The purpo
Authors
Jeffrey L. Mauk, Michael L. Zientek, B. Carter Hearn, Heather L. Parks, M. Christopher Jenkins, Eric D. Anderson, Mary Ellen Benson, Donald I. Bleiwas, Jacob DeAngelo, Paul Denning, Connie L. Dicken, Ronald M. Drake, Gregory L. Fernette, Helen W. Folger, Stuart A. Giles, Jonathan M. G. Glen, Matthew Granitto, Jon E. Haacke, John D. Horton, Karen D. Kelley, Joyce A. Ober, Barnaby W. Rockwell, Carma A. San Juan, Elizabeth S. Sangine, Peter N. Schweitzer, Brian N. Shaffer, Steven M. Smith, Colin F. Williams, Douglas B. Yager
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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, Geology, Geophysics, and Geochemistry Science Center, National Minerals Information Center

The F'derik-Zouerate iron district: Mesoarchean and Paleoproterozoic iron formation of the Tiris Complex, Islamic Republic of Mauritania

High-grade hematitic iron ores (of HIF, containing 60-65 wt%Fe) have been mined in Mauritania since 1952 from Superior-type iron deposits of the F'derik-Zouerate district.  Depletion of the high-grade ores in recent years has resulted in new exploration projects focused on lower-grade magnetite ores occurring in Algoma-type banded iron formation (of BIF, containing ca. 35 wt% Fe).  Mauritania is t
Authors
Cliff D. Taylor, Carol A. Finn, Eric D. Anderson, Dwight C. Bradley, Mohamed Joud, Ahmed Taleb Mohamed, John D. Horton, Craig A. Johnson
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Energy and Minerals Mission Area, Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Crystalline basement map of Mauritania derived from filtered aeromagnetic data (deliverable 54_1), Aeromagnetic and geological structure map of Mauritania (phase V, deliverable 54_2), Maximum depth to basement map of Mauritania derived from Euler analysis

In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the geological and mineral exploration potential of the country. In 1999, the Minis
Authors
Carol A. Finn, John D. Horton
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Mineral Resources Program

Synthesis of geological, structural, and geochronologic data (phase V, deliverable 53)

This report is a companion to the new Geologic Map of Mauritania (Bradley and others, 2015; referred to herein as “Deliverable 51”) and the new Structural Geologic Map of Mauritania (Bradley and others, 2015a; referred to herein as “Deliverable 52”). Section 1 contains explanatory information for these two digital maps. Section 2 covers the analytical methods used in obtaining new U-Pb ages from 9
Authors
Dwight C. Bradley, Paul O'Sullivan, Michael A. Cosca, Holly Motts, John D. Horton, Cliff D. Taylor, Georges Beaudoin, Gregory K. Lee, Jahan Ramezani, Daniel N. Bradley, James V. Jones, Samuel Bowring
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Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Algoma-, Superior-, and oolitic-type iron deposits of the Islamic Republic of Mauritania (phase V, deliverable 83)

High-grade hematitic iron ores (or HIF, containing 60–65 percent Fe) have been mined in Mauritania from Superior-type iron deposits since 1952. Depletion of the high grade ores in recent years has resulted in a number of new projects focused on lower grade magnetite ores in Algoma-type banded iron formation (or BIF, containing approximately 35 percent Fe). Large deposits of oolitic-type iron ores
Authors
Cliff D. Taylor, Carol A. Finn, Eric D. Anderson, M. Y. Joud, M. A. Taleb, John D. Horton
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Hydrogeologic map of the Islamic Republic of Mauritania (phase V, deliverable 56), Synthesis of hydrologic data (phase V, deliverable 57), and chemical hydrologic map of the Islamic Republic of Mauritania (added value)

A hydrogeologic study was conducted to support mineral-resource assessment activities in Mauritania, Africa. Airborne magnetic depth estimates reveal two primary groundwater basins: the porous coastal Continental Terminal Basin (fill deposits); and the interior, fractured interior Taoudeni Basin. In the Continental Terminal Basin, there is uniform vertical recharge and localized discharge that is
Authors
Michael J. Friedel, Carol A. Finn, John D. Horton
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Landsat maps (phase V, deliverable 60), ASTER maps (phase V, deliverable 62), ASTER_DEM maps (phase V, deliverable 63), and spectral remote sensing in support of PRISM-II mineral resource assessment project, Islamic Republic of Mauritania (phase V, delive

Multispectral satellite data acquired by the Landsat 5 Thematic Mapper (TM), Landsat 7 Enhanced Thematic Mapper Plus (ETM+), and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) sensors were processed and interpreted in support of the PRISM-II project (Second Projet de Renforcement Institutionnel du Secteur Minier de la Republique Islamique de Mauritanie). This report and acc
Authors
Barnaby W. Rockwell, Daniel H. Knepper, John D. Horton
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Geographic Information Systems (GIS) for la République Islamique de Mauritanie (PRISM-II) phase V (phase V, deliverable 92)

In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the geological and mineral exploration potential of the country. In 1999, the Minis
Authors
John D. Horton, Cliff D. Taylor
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Science and Products