Selected laboratory evaluations of the whole-water sample-splitting capabilities of a prototype fourteen-liter Teflon churn splitter
A. J. Horowitz, J.J. Smith, K. A. Elrick
2001, Open-File Report 2001-386
A prototype 14-L Teflon? churn splitter was evaluated for whole-water sample-splitting capabilities over a range of sediment concentratons and grain sizes as well as for potential chemical contamination from both organic and inorganic constituents. These evaluations represent a 'best-case' scenario because they were performed in the controlled environment of a...
Shallow ground-water quality in an agricultural area of the lower coastal plain of South Carolina, 1997
Eric J. Reuber
2001, Open-File Report 2001-377
Ground-water-quality samples were collected from 30 shallow monitoring wells located in agricultural areas of the lower Coastal Plain of South Carolina during the summer of 1997 as part of the U.S. Geological Survey National Water-Quality Assessment Program in the Santee River Basin and Coastal Drainages study unit. The wells were...
A guide to potential soil carbon sequestration: Land-use management for mitigation of greenhouse gas emissions
H. W. Markewich, G. R. Buell
2001, Open-File Report 2001-374
Terrestrial carbon sequestration has a potential role in reducing the recent increase in atmospheric carbon dioxide (CO2) that is, in part, contributing to global warming. Because the most stable long-term surface reservoir for carbon is the soil, changes in agriculture and forestry can potentially reduce atmospheric CO2 through increased soil-carbon...
Tantalum recycling in the United States in 1998
Larry D. Cunningham
2001, Open-File Report 2001-349
This report describes the flow of tantalum in the United States in 1998 with emphasis on the extent to which tantalum was recycled/reused. Tantalum was mostly recycled from new scrap that was generated during the manufacture of tantalum-related electronic components and new and old scrap products of tantalum-containing cemented carbides...
Columbium (niobium) recycling in the United States in 1998
Larry D. Cunningham
2001, Open-File Report 2001-348
This report describes the flow of columbium in the United States in 1998 with emphasis on the extent to which columbium (niobium) was recycled/reused. Columbium was mostly recycled from products of columbium-bearing steels and superalloys; little was recovered from products specifically for their columbium content. In 1998, about 1,800 metric...
Selected hydrologic data for Little Cottonwood Creek, Salt Lake County, Utah, September 1998
L. J. Gerner, F. J. Rossi, B.K. Kimball
2001, Open-File Report 2001-38
Metals enter Little Cottonwood Creek in Salt Lake County, Utah, in drainage water that discharges from inactive mines in the watershed (fig. 1). As part of a study to evaluate the effects of this mine drainage on water quality, a sodium chloride tracer was injected into Little Cottonwood Creek during...
Impacts of climate change on landscapes of the eastern Sierra Nevada and western Great Basin
A. S. Jayko, C. I. Millar
2001, Open-File Report 2001-202
This effort was developed under a U.S. Geological Survey (USGS) initiative to sponsor science workshops focusing on various of multidiscipline, multiprogram themes in the arid Southwest. The intent was to use the workshops to explore leading edge questions, as well as to provide better communication and collaboration between USGS and...
Energy-to-moment ratios for damaging intraslab earthquakes: preliminary results on a few case studies
Emile A. Okal, S. H. Kirby
2001, Open-File Report 2002-328
We use the energy-to-moment ratio, as introduced by Newman and Okal [1998] to examine the source characteristics of normal-faulting intraslab earthquakes, compared to nearby interplate thrust events, based on recent case studies in central Chile and southeastern Mexico. In Chile, we find that the 1997 intraslab event had an exceptionally...
Geologic map of the San Bernardino North 7.5' quadrangle, San Bernardino County, California
F. K. Miller, J. C. Matti
2001, Open-File Report 2001-131
Introduction Open-File Report OF 01-131 contains a digital geologic map database of the San Bernardino North 7.5’ quadrangle, San Bernardino County, California that includes: 1. ARC/INFO (Environmental Systems Research Institute) version 7.2.1 coverages of the various components of the geologic map 2. A PostScript file to plot the geologic map on a topographic...
Principal facts for gravity data along the Hayward fault and vicinity, San Francisco Bay area, northern California
David A. Ponce
2001, Open-File Report 2001-124
The U.S. Geological Survey (USGS) established over 940 gravity stations along the Hayward fault and vicinity. The Hayward fault, regarded as one of the most hazardous faults in northern California (Working Group on California Earthquake Probabilities, 1999), extends for about 90 km from Fremont in the southeast to San Pablo...
Geologic map of the Devore 7.5' quadrangle, San Bernardino County, California
Douglas M. Morton, Jonathan C. Matti
2001, Open-File Report 2001-173
This Open-File Report contains a digital geologic map database of the Devore 7.5' quadrangle, San Bernardino County, California, that includes: 1. ARC/INFO (Environmental Systems Research Institute) version 7.2.1 coverages of the various components of the geologic map 2. A PostScript (.ps) file to plot the geologic map on a topographic base, containing...
Geochemical analysis of soils and sediments, Coeur d'Alene drainage basin, Idaho: sampling, analytical methods, and results
Stephen E. Box, Arthur A. Bookstrom, Mohammed Ikramuddin, James Lindsay
2001, Open-File Report 2001-139
This report presents the locations, descriptions, analytical procedures used, and an inter-lab comparison of over 1100 geochemical analyses of samples of soil and sediment in and downstream of a major lead-zinc-silver mining district in the Coeur d'Alene (CdA) drainage basin of northern Idaho. The samples fall in 3 broad categories:...
Geologic map of the Telegraph Peak 7.5' quadrangle, San Bernardino County, California
D. M. Morton, M.O. Woodburne, J. H. Foster, Gregory Morton, P. M. Cossette
2001, Open-File Report 2001-293
Open-File Report OF 01-293 contains a digital geologic map database of the Telegraph Peak 7.5’ quadrangle, San Bernardino County, California that includes: ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 double precision coverages of the various elements of the geologic map. A PostScript file to plot the geologic map on a topographic...
Geologic map of the Cucamonga Peak 7.5' quadrangle, San Bernardino County, California
D. M. Morton, J. C. Matti, Catherine Koukladas, P. M. Cossette
2001, Open-File Report 2001-311
Open-File Report OF 01-311 contains a digital geologic map database of the Cucamonga Peak 7.5’ quadrangle, San Bernardino County, California that includes: 1. ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map 2. A PostScript file to plot the geologic map on a topographic...
Use of structural geology in exploration for and mining of sedimentary rock-hosted Au deposits
Stephen G. Peters
2001, Open-File Report 2001-151
Structural geology is an important component in regional-, district- and orebody-scale exploration and development of sedimentary rock-hosted Au deposits. Identification of timing of important structural events in an ore district allows analysis and classification of fluid conduits and construction of genetic models for ore formation. The most practical uses of...
Archive of water gun subbottom data collected during USGS cruise SEAX 95007 New York Bight, 7-25, May 1995
J. C. Hill, W. C. Schwab, D.S. Foster
2001, Open-File Report 2001-157
Beginning in 1995, the USGS, in cooperation with the U.S Army Corps of Engineers (USACE), New York District, began a program to generate reconnaissance maps of the sea floor offshore of the New York-New Jersey metropolitan area, one of the most populated coastal regions of the United States. The goal...
Sea-floor photography from the Continental Margin Program: A pictorial survey of benthic character and habitats along the U.S. East Coast
V.F. Paskevich, L. J. Poppe, M. E. Hastings, J.C. Hathaway
2001, Open-File Report 2001-154
No abstract available....
Publications of the Western Earth Surface Processes Team 2000
Charles L. Powell II, Paul Stone
2001, Open-File Report 2001-198
The Western Earth Surface Processes Team (WESP) of the U.S. Geological Survey (USGS) conducts geologic mapping and related topical earth science studies in the western United States. This work is focused on areas where modern geologic maps and associated earth-science data are needed to address key societal and environmental issues...
Heavy minerals from the Palos Verdes margin, southern California: Data and factor analysis
Florence L. Wong
2001, Open-File Report 2001-153
Heavy or high-density minerals in the 63-250-_m (micron) size fraction (very fine and fine sand) were analyzed from 36 beach and offshore sites (38 samples) of the Palos Verdes margin to determine the areal and temporal mineralogic distributions and the relation of those distributions to the deposit affected by material...
Density and velocity relationships for digital sonic and density logs from coastal Washington and laboratory measurements of Olympic Peninsula mafic rocks and greywackes
Thomas M. Brocher, Nikolas I. Christensen
2001, Open-File Report 2001-264
Three-dimensional velocity models for the basins along the coast of Washington and in Puget Lowland provide a means for better understanding the lateral variations in strong ground motions recorded there. We have compiled 16 sonic and 18 density logs from 22 oil test wells to help us determine the geometry...
Automated remote digital imaging system (ARDIS): applications for monitoring dust emissions in the Mojave Desert, California
Richard K. Tigges, Stuart Slides, Mark Ohms
2001, Open-File Report 2001-230
Geologic map of the Fifteenmile Valley 7.5' quadrangle, San Bernardino County, California
F. K. Miller, J. C. Matti
2001, Open-File Report 2001-132
Open-File Report OF 01-132 contains a digital geologic map database of the Fifteenmile Valley 7.5’ quadrangle, San Bernardino County, California that includes: 1. ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. 2. A PostScript file to plot the geologic map on a topographic...
Stratigraphic section and selected semiquantitative chemistry, Meade Peak phosphatic shale member of Permian Phosphoria Formation, central part of Rasmussen Ridge, Caribou County, Idaho
R. I. Grauch, R. G. Tysdal, E. A. Johnson, J. R. Herring, G. A. Desborough
2001, Open-File Report 99-20-E
The U.S. Geological Survey (USGS) has studied the Permian Phosphoria Formation in southeastern Idaho and the entire Western U.S. Phosphate Field throughout much of the twentieth century. In response to a request by the U.S. Bureau of Land Management, a new series of resource, geological, and geoenvironmental studies was undertaken...
Shaded-relief and color shaded-relief maps of the Willamette Valley, Oregon
R. W. Givler, Ray E. Wells
2001, Open-File Report 2001-294
This Open-File Report is released as a digital map database. It includes PostScript plot files that contain images of the map sheets; the images also contain a brief explanation describing the geology and physiography of the study area. The digital map database is a compilation of newly published 10-m digital-elevation-model...
Baseline geochemical data for stream sediment and surface water samples from Panther Creek, the Middle Fork of the Salmon River, and the Main Salmon River from North Fork to Corn Creek, collected prior to the severe wildfires of 2000 in central Idaho
Robert G. Eppinger, Paul H. Briggs, Zoe Ann Brown, James G. Crock, Allen Meier, Peter M. Theodorakos, Stephen A. Wilson
2001, Open-File Report 2001-161
In 1996, the U.S. Geological Survey conducted a reconnaissance baseline geochemical study in central Idaho. The purpose of the baseline study was to establish a 'geochemical snapshot' of the area, as a datum for monitoring future change in the geochemical landscape, whether natural or human-induced. This report presents the methology,...
