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Geology, hydrology, and results of tracer testing in the Galena-Platteville aquifer at a waste-disposal site near Byron, Illinois
Robert T. Kay, Douglas J. Yeskis, Scott T. Prinos, William S. Morrow, Mark Vendl
1999, Open-File Report 98-640
A study was conducted by the U.S. Geological Survey and the U.S. Environmental Protection Agency of the geohydrology of the dolomite bedrock at a waste-disposal site near Byron, Illinois. The study was designed to identify and characterize the flow pathways through the bedrock aquifer beneath the site. The geologic units...
Selected data from eleven wildcat wells in the National Petroleum Reserve in Alaska
F. N. Zihlman, H. L. Oliver
1999, Open-File Report 99-15
Between 1978 and 1981, the U.S. Geological Survey drilled 27 wells in the National Petroleum Reserve in Alaska. This publication presents the following data from eleven of those 27 wells: general information, well core images, depths to specific stratigraphic units, well core gamma ray logs in LAS format, well log...
Organic compounds and trace elements in the Pocomoke River and tributaries, Maryland
Cherie V. Miller, Gregory D. Foster, Thomas B. Huff, John R. Garbarino
1999, Open-File Report 99-57
In response to concern about recent blooms of the dinoflagellate, Pfiesteria piscicida, samples of sediment and water were collected from the lower Pocomoke River Basin and were screened for trace elements, pesticides, and other organic compounds. A large group of steroid and fatty acid methyl-ester compounds was detected in streamwater...
Workplan for U.S. Geological Survey hydrologic data-collection and support activities on Fort Wainwright, Alaska, 1994-97
David V. Claar, Michael R. Lilly
1999, Open-File Report 99-80
The U.S. Army Alaska is responsible for environmental activities on Fort Wainwright near Fairbanks, Alaska. In order to better meet the needs of environmental investigations, the Army requires geohydrologic information about the Fort Wainwright area. Since 1994, the U.S. Geological Survey has been working in cooperation with the U.S. Army...
Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado
Laurie Wirt, K.J. Leib, D. J. Bove, M.A. Mast, J. B. Evans, G.P. Meeker
1999, Open-File Report 99-159
Prospect Gulch is a major source of iron, aluminum, zinc, and other metals to Cement Creek. Information is needed to prioritize remediation and develop strategies for cleanup of historical abandoned mine sites in Prospect Gulch. Chemical-constituent loads were determined in Prospect Gulch, a high-elevation alpine stream in southwestern Colorado that is affected by natural...
An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona
M.W. Bultman, M. E. Gettings, Jeff Wynn
1999, Open-File Report 99-7-A
Executive Summary -- In March of 1997, an airborne electromagnetic (AEM) survey of the Fort Huachuca Military Reservation and immediate surrounds (location map, http://geopubs.wr.usgs.gov/open-file/of99-007-b/index.jpg) was conducted. This survey was sponsored by the U.S. Army and contracted through the Geologic Division of the U.S. Geological Survey (USGS). Data were gathered by...
Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California
S.A. Minor
1999, Open-File Report 99-32
New 1:24,000-scale geologic mapping in the Cuyama 30' x 60' quadrangle, in support of the USGS Southern California Areal Mapping Project (SCAMP), is contributing to a more complete understanding of the stratigraphy, structure, and tectonic evolution of the complex junction area between the NW-striking Coast Ranges and EW-striking western Transverse...
Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database
Jane E. Nielson, Ryan D. Turner, David R. Bedford
1999, Open-File Report 99-34
The Hart Peak 1:24,000-scale quadrangle is located about 12 km southwest of Searchlight, Nevada, comprehending the eastern part of the Castle Peaks, California, and most of the Castle Mountains and the northwestern part of the Piute Range, in California and Nevada. The Castle Peaks area constitutes the northeasternmost part of...
HYPOELLIPSE; a computer program for determining local earthquake hypocentral parameters, magnitude, and first-motion pattern
John C. Lahr
1999, Open-File Report 99-23
This report provides Fortran source code and program manuals for HYPOELLIPSE, a computer program for determining hypocenters and magnitudes of near regional earthquakes and the ellipsoids that enclose the 68-percent confidence volumes of the computed hypocenters. HYPOELLIPSE was developed to meet the needs of U.S. Geological Survey (USGS) scientists studying...
Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment
L.N. Roberts, L.R. Biewick
1999, Open-File Report 99-5
This report documents a comparison of two methods of resource calculation that are being used in the National Coal Resource Assessment project of the U.S. Geological Survey (USGS). Tewalt (1998) discusses the history of using computer software packages such as GARNET (Graphic Analysis of Resources using Numerical Evaluation Techniques), GRASS...