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Cruise report for a seismic investigation of gas hydrates in the Mississippi Canyon region, northern Gulf of Mexico: Cruise M1-98-GM
Alan K. Cooper, Patrick E. Hart, Ingo Pecher
1998, Open-File Report 98-506
During June 1998, the U.S. Geological Survey (USGS) and the University of Mississippi Marine Minerals Technology Center (MMTC) conducted a 12-day cruise in the Mississippi Canyon region of the Gulf of Mexico (Fig. 1). The R/V Tommy Munro, owned by the Marine Research Institute of the University of Southern Mississippi,...
A Review of Semivolatile and Volatile Organic Compounds in Highway Runoff and Urban Stormwater
Thomas J. Lopes, Shannon G. Dionne
1998, Open-File Report 98-409
Many studies have been conducted since 1970 to characterize concentrations of semivolatile organic compounds (SVOCs) in highway runoff and urban stormwater. To a lesser extent, studies also have characterized concentrations of volatile organic compounds (VOCs), estimated loads of SVOCs, and assessed potential impacts of these contaminants on receiving streams. This...
Mining properties in Oregon that were involved in the DMA, DMEA, or OME mineral exploration programs, 1950-1974
Thor H. Kiilsgaard
1998, Open-File Report 98-464
Introduction This report and accompanying map (Plate 1) presents information on the Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs in Oregon. Under these programs, the federal government participated in the exploration costs for certain strategic and critical minerals. Federal funds...
Geologic map of Paleozoic rocks in the Calico Hills, Nevada Test Site, southern Nevada
James C. Cole, Patricia H. Cashman
1998, Open-File Report 98-101
The Calico Hills area in the southwestern part of the Nevada Test Site, Nye County, Nevada, exposes a core of pre-Tertiary rocks surrounded by middle Miocene volcanic strata. This map portrays the very complex relationships among the pre-Tertiary stratigraphic units of the region. The Devonian and Mississippian rocks of the...
Loads and yields of sediment and water-quality constituents in Kentucky streams
Rene Garcia, Angela S. Crain
1998, Open-File Report 98-411
Loads and yields of sediment and water-quality constituents were estimated for selected Kentucky streams. Streamflow, sediment, and water-quality information were collected at a network of 44 stream stations in Kentucky. Mean daily discharge was synthesized using the drainage-area ratio, regression analysis, or a combination of the two techniques. Streamflow was...
Cruise report: RV Ocean Alert Cruise A2-98-SC: mapping the southern California continental margin; March 26 through April 11, 1998; San Diego to Long Beach, California
James V. Gardner, Larry A. Mayer
1998, Open-File Report 98-475
The major objective of cruise A2-98 was to map portions of the southern California continental margin, including mapping in detail US Environmental Protection Agency (USEPA) ocean dumping sites. Mapping was accomplished using a high-resolution multibeam mapping system. The cruise was a jointly funded project between the USEPA and the US...
Data Quality Objectives and Criteria for Basic Information, Acceptable Uncertainty, and Quality-Assurance and Quality-Control Documentation
Gregory E. Granato, Fred G. Bank, Patricia A. Cazenas
1998, Open-File Report 98-394
The Federal Highway Administration and State transportation agencies have the responsibility of determining and minimizing the effects of highway runoff on water quality; therefore, they have been conducting an extensive program of water-quality monitoring and research during the last 25 years. The objectives and monitoring goals of highway runoff studies...