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...
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...
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...
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,...
Geologic map of the Lakeview 7.5' quadrangle, Riverside County, California
Douglas M. Morton, Jonathan C. Matti
2001, Open-File Report 2001-174
This Open-File Report contains a digital geologic map and map database of the Lakeview 7.5' quadrangle, Riverside County, California, that includes: 1. ARC/INFO (Environmental Systems Research Institute) version 7.2.1 double-precision coverages of the various elements of the geologic map 2. A Postscript file to plot the geologic map on a topographic base,...
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1, 1994 through December 31, 1999
Arthur D. Jolly, Scott D. Stihler, John A. Power, John C. Lahr, John Paskievitch, Guy Tytgat, Steve Estes, Andrew B. Lockhart, Seth C. Moran, Stephen R. McNutt, William R. Hammond
2001, Open-File Report 2001-189
The Alaska Volcano Observatory (AVO), a cooperative program of the U.S. Geological Survey, the Geophysical Institute of the University of Alaska - Fairbanks, and the Alaska Division of Geological and Geophysical Surveys, has maintained a seismic monitoring program at potentially active volcanoes in Alaska since 1988 (Power and others, 1993;...
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...
Mississippi Basin Carbon Project: Upland soil database for sites in Nishnabotna River basin, Iowa
J.W. Harden, T. L. Fries, R. Haughy, L. Kramer, Shuhui Zheng
2001, Open-File Report 2001-217
The conversion of land from its native state to an agricultural use commonly results in a significant loss of soil carbon (Mann, 1985; Davidson and Ackerman, 1993). Globally, this loss is estimated to account for as much as 1/3 of the net CO2 emissions for the period of 1850 to...
A simplified economic filter for open-pit mining and heap-leach recovery of copper in the United States
Keith R. Long, Donald A. Singer
2001, Open-File Report 2001-218
Determining the economic viability of mineral deposits of various sizes and grades is a critical task in all phases of mineral supply, from land-use management to mine development. This study evaluates two simple tools for estimating the economic viability of porphyry copper deposits mined by open-pit, heap-leach methods when only...
Resource materials for a GIS spatial analysis course
Gary L. Raines
2001, Open-File Report 2001-221
This report consists of materials prepared for a GIS spatial analysis course offered as part of the Geography curriculum at the University of Nevada, Reno and the University of California at Santa Barbara in the spring of 2000. The report is intended to share information with instructors preparing spatial-modeling training...
Metal loading assessment of a small mountainous sub-basin characterized by acid drainage -- Prospect Gulch, upper Animas River watershed, Colorado
Laurie Wirt, Kenneth J. Leib, Roger Melick, Dana J. Bove
2001, Open-File Report 2001-258
strongly affected by natural acidity from pyrite weathering. Metal content in the water column is a composite of multiple sources affected by hydrologic, geologic, climatic, and anthropogenic conditions. Identifying sources of metals from various drainage areas was determined using a tracer injection approach and synoptic sampling during low flow conditions on September 29, 1999 to determine...
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...
Spatial variability of sediment erosion processes using GIS analysis within watersheds in a historically mined region, Patagonia Mountains, Arizona
Laura M. Brady, Floyd Gray, Craig A. Wissler, D. Phillip Guertin
2001, Open-File Report 2001-267
In this study, a geographic information system (GIS) is used to integrate and accurately map field studies, information from remotely sensed data, watershed models, and the dispersion of potentially toxic mine waste and tailings. The purpose of this study is to identify erosion rates and net sediment delivery of soil...
Water-quality, biology, and streambed sediment data and preliminary geochemical interpretations for streams in the upper Prickly Pear Creek watershed, Montana, 2000
Terry L. Klein, Joanna N. Thamke, Aida M. Farag
2001, Open-File Report 2001-280
No abstract available....
Simulation of ground-water flow in the Mojave River basin, California
Christina L. Stamos, Peter Martin, Tracy Nishikawa, Brett F. Cox
2001, Water-Resources Investigations Report 2001-4002
The proximity of the Mojave River ground-water basin to the highly urbanized Los Angeles region has led to rapid growth in population and, consequently, to an increase in the demand for water. The Mojave River, the primary source of surface water for the region, normally is dry-except for a small...
Investigation of Ground-Water Availability and Quality in Orange County, North Carolina
William L. Cunningham, Charles C. Daniel III
2001, Water-Resources Investigations Report 2000-4286
A countywide inventory was conducted of 649 wells in nine hydrogeologic units in Orange County, North Carolina. As a result of this inventory, estimates of ground-water availability and use were calculated, and water-quality results were obtained from 51 wells sampled throughout the County from December 1998 through January 1999. The...
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:...
Using high-resolution aeromagnetic surveys to map subsurface hydrogeology in sediment-filled basins: A case study over the Rio Grande Rift, Central New Mexico, USA
V. J. S. Grauch
2001, Exploration Geophysics (32) 209-213
High-resolution aeromagnetic surveys were acquired for the Albuquerque basin in the central Rio Grande rift, a basin filled with poorly consolidated sediments. The surveys proved successful in efficiently and economically mapping previously unknown hydrogeologic features of the shallow subsurface. This success suggests that aeromagnetic methods may be useful in hydrogeologic...
A strategy for estimating tree canopy density using Landsat 7 ETM+ and high resolution images over large areas
Chengquan Huang, Limin Yang, Bruce K. Wylie, Collin G. Homer
2001, Conference Paper, Proceedings of the third international conference on geospatial information in agriculture and forestry
Forest cover is of great interest to a variety of scientific and land management applications, many of which require not only information on forest categories, but also tree canopy density. In previous studies, large area tree canopy density had been estimated at spatial resolutions of 1km or coarser using coarse...
Techniques for estimating sediment yield of ungaged tributaries on the southern Colorado Plateau
Robert Webb, Peter G. Griffiths, Daniel R. Hartley
2001, Conference Paper, Proceedings of the Seventh Federal interagency sedimentation conference
Numerous regional sediment transport data are used to evaluate three techniques for estimating streamflow sediment yield from ungaged tributaries of the Colorado River in Grand Canyon. These techniques include: (1) a regression equation relating drainage area to sediment yield for all relevant sediment-yield data from northern Arizona, (2) an empirical...
Use of the USDA Forest Service Geographic Information System for determining cover type use by white-tailed deer
Christopher S. DePerno, Jonathan A. Jenks, Steven L. Griffin, Robert W. Klaver
2001, Conference Paper, Proceedings of the South Dakota academy of science, vol. 80
Cover type use by white-tailed deer (Odocoileus virginianus dacotensis) in the central Black Hills of South Dakota was compared to the United States Department of Agriculture (USDA) Forest Service digital data using a Geographic Information System (GIS). Cover types were determined from observations of radiocollared deer and random locations and...
Transboundary movement of airborne pollutants — A methodology for integrating spaceborne images and ground based data
Jill Engel-Cox, Thomas P. DeFelice, Stefan Falk
2001, Report
The availability of relevant and accurate environmental information is essential for environmental policy-makers. Recent improvements in satellite remote sensing technologies, groundbased monitors, and data access have resulted in the ability to observe and assess major atmospheric and ecological events around the world on a timely basis Each of these monitoring...
South China Sea
Brian Morton, Graham Blackmore
2001, Marine Pollution Bulletin (42) 1236-1263
The South China Sea is poorly understood in terms of its marine biota, ecology and the human impacts upon it. What is known is most often contained in reports and workshop and conference documents that are not available to the wider scientific community. The South China Sea has an area...
Validation of the USGS sensor model for topographic mapping of Venus using Magellan radar stereoimagery
Elpitha Howington-Kraus, Randolph L. Kirk, Donna M. Galuszka, Trent M. Hare, Bonnie L. Redding
2001, Conference Paper, Planetary Mapping: ISPRS Working Group IV/9 Workshop Proceedings
The Magellan spacecraft went into Venus orbit in 1990 and by 1992 had made three complete cycles of polar orbits, each cycle covering the full range of longitudes. During this time the spacecraft obtained synthetic aperture radar (SAR) images of >96% of the planet at a resolution of 75 m/pixel....
