Backgrounds and Baselines Completed
This project developed a geochemical information base through studies ranging in scale from site-specific to regional and national.
Overview
A geochemical base of information is required to define the natural abundance and spatial distribution of chemical elements in the Earth's surface and subsurface environment to which changes caused by human activities (for example, urbanization, agriculture, mining, waste disposal and industrial pollution) or natural processes (for example, volcanic eruptions, floods, hurricanes, and dust storms) can be compared. This project developed this information base through studies ranging in scale from site-specific to regional and national. The resulting databases and interpretive products (including geochemical maps) are available for use by Federal, State, and local land management and environmental protection agencies to determine predevelopment geochemical backgrounds and current geochemical baselines for various sample media both at the surface (soils, stream sediment, and water) and in the subsurface (water and rocks). The information is available for use to detect and measure the magnitude of change in the chemistry of these materials caused by anthropogenic or natural processes. The preparation of these multi-element, multi-media geochemical baselines and their representation as geochemical maps was an essential first step for assessing and monitoring the state of the Earth's land surface.
Project Tasks
- Baseline Characterization and Monitoring of Minerals-Related Mitigation Sites and Undeveloped Mineral Deposits
- Leadership in IUGS/IAGC Working Group on Global Geochemical Baselines
- Three Dimensional Backgrounds and Baselines
- Environmental Behavior of Mineral Deposits in Alaska's National Parks
- Regional Geoscience Baseline Studies of the Fortymile and Goodpasture River Watershed, Alaska
- Sources and Cycling of Hg in Lakes and Reservoirs in the Central Region, USA
- Environmental Geochemistry in Joshua Tree National Park (JTNP), California
Below are other science projects associated with this project.
Below are publications associated with this project.
Geochemical data for environmental studies of mineral deposits at Nabesna, Kennecott, Orange Hill, Bond Creek, Bremner, and Gold Hill, Wrangell-St. Elias National Park and Preserve, Alaska
Geochemical baselines for surface waters and stream sediments and processes controlling element mobility, Rough and Ready Creek and Oregon Caves National Monument and vicinity, southwestern Oregon
Geochemical baseline studies and relations between water quality and streamflow in the Upper Blackfoot River Watershed, Montana; progress report for July 1997 - March 1998
U.S. Geological Survey Middle Rio Grande Basin Study; Proceedings of the first annual workshop, Denver, Colorado, November 12-14, 1996
Studies of Suction Dredge Gold-Placer Mining Operations Along the Fortymile River, Eastern Alaska
Placer gold mining in Alaska - cooperative studies on the effect of suction dredge operations on the Fortymile River
- Overview
This project developed a geochemical information base through studies ranging in scale from site-specific to regional and national.
Overview
A geochemical base of information is required to define the natural abundance and spatial distribution of chemical elements in the Earth's surface and subsurface environment to which changes caused by human activities (for example, urbanization, agriculture, mining, waste disposal and industrial pollution) or natural processes (for example, volcanic eruptions, floods, hurricanes, and dust storms) can be compared. This project developed this information base through studies ranging in scale from site-specific to regional and national. The resulting databases and interpretive products (including geochemical maps) are available for use by Federal, State, and local land management and environmental protection agencies to determine predevelopment geochemical backgrounds and current geochemical baselines for various sample media both at the surface (soils, stream sediment, and water) and in the subsurface (water and rocks). The information is available for use to detect and measure the magnitude of change in the chemistry of these materials caused by anthropogenic or natural processes. The preparation of these multi-element, multi-media geochemical baselines and their representation as geochemical maps was an essential first step for assessing and monitoring the state of the Earth's land surface.
Project Tasks
- Baseline Characterization and Monitoring of Minerals-Related Mitigation Sites and Undeveloped Mineral Deposits
- Leadership in IUGS/IAGC Working Group on Global Geochemical Baselines
- Three Dimensional Backgrounds and Baselines
- Environmental Behavior of Mineral Deposits in Alaska's National Parks
- Regional Geoscience Baseline Studies of the Fortymile and Goodpasture River Watershed, Alaska
- Sources and Cycling of Hg in Lakes and Reservoirs in the Central Region, USA
- Environmental Geochemistry in Joshua Tree National Park (JTNP), California
- Science
Below are other science projects associated with this project.
- Publications
Below are publications associated with this project.
Filter Total Items: 31Geochemical data for environmental studies of mineral deposits at Nabesna, Kennecott, Orange Hill, Bond Creek, Bremner, and Gold Hill, Wrangell-St. Elias National Park and Preserve, Alaska
Environmental geochemical investigations were carried out between 1994 and 1997 in Wrangell-St. Elias National Park and Preserve (WRST), Alaska. Mineralized areas studied include the historic Nabesna gold mine/mill and surrounding areas; the historic Kennecott copper mill area and nearby Bonanza, Erie, Glacier, and Jumbo mines; the historic mill and gold mines in the Bremner district; the active gAuthorsR. G. Eppinger, Paul H. Briggs, D. S. Rosenkrans, Vanessa Ballestrazze, Jose Aldir, Z. A. Brown, J. G. Crock, W. M. d'Angelo, M. W. Doughten, D. L. Fey, P. L. Hageman, R. T. Hopkins, R. J. Knight, M. J. Malcolm, J. B. McHugh, A. L. Meier, J.M. Motooka, R. M. O'Leary, B. H. Roushey, S.J. Sultley, P. M. Theodorakos, S. A. WilsonGeochemical baselines for surface waters and stream sediments and processes controlling element mobility, Rough and Ready Creek and Oregon Caves National Monument and vicinity, southwestern Oregon
No abstract available.AuthorsW. R. Miller, D. B. Smith, A. L. Meier, Paul H. Briggs, P. M. Theodorakos, R.F. Sanzolone, R. B. VaughnGeochemical baseline studies and relations between water quality and streamflow in the Upper Blackfoot River Watershed, Montana; progress report for July 1997 - March 1998
No abstract available.AuthorsS.A. Nagorski, J.A. Shifflett, J.N. Moore, D. B. SmithU.S. Geological Survey Middle Rio Grande Basin Study; Proceedings of the first annual workshop, Denver, Colorado, November 12-14, 1996
Approximately 40 percent (about 600,000 people) of the total population of New Mexico lives within the Middle Rio Grande Basin, which includes the City of Albuquerque. Ongoing analyses of the central portion of the Middle Rio Grande Basin by the U.S. Geological Survey (USGS) in cooperation with the City of Albuquerque and other cooperators have shown that ground water in the basin is noStudies of Suction Dredge Gold-Placer Mining Operations Along the Fortymile River, Eastern Alaska
No abstract available.AuthorsPlacer gold mining in Alaska - cooperative studies on the effect of suction dredge operations on the Fortymile River
No abstract available.Authors