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Not all publications have extents, not all extents are completely accurate
Construction, completion, and testing of replacement monitoring wells MW 3-2, MW 6-2, MW 7-2, and MW 11-2, Mountain Home Air Force Base, Idaho, February through April 2000
D. J. Parliman
2000, Open-File Report 2000-515
In February and March 2000, the U.S. Geological Survey Western Regional Research Drilling Operation constructed replacement monitoring wells MW 3–2, MW 6–2, MW 7–2, and MW 11–2 as part of a regional ground-water monitor- ing network for the Mountain Home Air Force Base, Elmore County, Idaho. Total well depths ranged...
Eastern Aleutian volcanic arc digital model - version 1.0
R. W. Saltus, Adrienne Barnett
2000, Open-File Report 2000-365
A 3-dimensional model (Figure 1) of the interaction of oceanic and continental tectonic plates along the eastern portion of the Aleutian volcanic arc helps in the visualization of basic tectonic, geodetic, and geophysical data in this active plate boundary region. The model is constrained by topographic, bathymetric, and seismic data...
Ground-water quality in the upper Santa Cruz Basin, Arizona, 1998
Alissa Coes, Dorinda J. Gellenbeck, Douglas C. Towne, Maureen C. Freark
2000, Water-Resources Investigations Report 2000-4117
Fifty-eight ground-water samples were collected and analyzed in 1998 by the U.S. Geological Survey and the Arizona Department of Environmental Quality to assess ground-water quality and to identify factors affecting ground-water quality in the Upper Santa Cruz Basin. In addition, pre-existing groundwater quality data for six wells were analyzed to determine changes in...
Measurement of stream discharge by wading
K. Michael Nolan, Ronald R. Shields
2000, Water-Resources Investigations Report 2000-4036
Most years the U.S. Geological Survey (USGS) makes over 50,000 stream discharge measurements. Over 75 percent of those measurements are made by wading streams and using the velocity-area method. This PowerPoint presentation describes how stream discharge should be measured when wading and using the velocity-area method. It is intended as...
An overview of mining-related environmental and human health issues, Marinduque Island, Philippines: observations from a joint U.S. Geological Survey - Armed Forces Institute of Pathology reconnaissance field evaluation, May 12-19, 2000
Geoffrey S. Plumlee, Robert A. Morton, Terence P. Boyle, Jack H. Medlin, Jose A. Centeno
2000, Open-File Report 2000-397
This report summarizes results of a visit by the report authors to Marinduque Island, Philippines, in May 2000. The purpose of the visit was to conduct a preliminary examination of environmental problems created by a 1996 tailings spill from the Marcopper open-pit copper mine. The mine was operated from 1969-1996...
High-resolution marine seismic reflection data from the San Francisco Bay area
Jonathan R. Childs, Patrick Hart, Terry R. Bruns, Michael S. Marlow, Ray Sliter
2000, Open-File Report 2000-494
Between 1993 and 1997, the U.S. Geological Survey acquired high-resolution, marine seismic-reflection profile data across submerged portions of known and inferred upper crustal fault zones throughout the greater San Francisco Bay area. Surveys were conducted oversouth San Francisco Bay in the vicinity of the San Bruno shoal (roughly between the...
Cruise report R/V Surf Surveyor cruise S1-00-CL, mapping the bathymetry of Crater Lake, Oregon
James V. Gardner, Larry A. Mayer, Mark W. Buktenica
2000, Open-File Report 2000-405
During the Spring of 1999, the US Geological Survey (USGS) Pacific Seafloor Mapping Project (PSMP) was contacted by the US National Park Service Crater Lake National Park (CLNP) to inquire about the plausibility of producing a high-resolution multibeam bathymetric map of Crater Lake. The purpose was to generate a much...
The lasting effects of tank maneuvers on desert soils and intershrub flora
Douglas V. Prose, Howard G. Wilshire
2000, Open-File Report 2000-512
Mojave Desert soils and intershrub flora sustained lasting disturbances during military training maneuvers initiated by General George Patton, Jr. in the 1940s, and during Operation Desert Strike in 1964. At six sites, mean desert pavement clast size was significantly smaller by 15% to 50% in single tank tracks compared to...
A filter circuit board for the Earthworm Seismic Data Acquisition System
Edward Gray Jensen
2000, Open-File Report 2000-379
The Earthworm system is a seismic network data acquisition and processing system used by the Northern California Seismic Network as well as many other seismic networks. The input to the system is comprised of many realtime electronic waveforms fed to a multi-channel digitizer on a PC platform. The digitizer consists...
Principal facts for gravity data collected in the southern Albuquerque Basin area and a regional compilation, central New Mexico
Cindy L. Gillespie, V. J. S. Grauch, Kim Oshetski, Gordon R. Keller
2000, Open-File Report 2000-490
Principal facts for 156 new gravity stations in the southern Albuquerque basin are presented. These data fill a gap in existing data coverage. The compilation of the new data and two existing data sets into a regional data set of 5562 stations that cover the Albuquerque basin and vicinity is also described. Bouguer...
Ground-water quality in alluvial aquifers in the eastern Iowa basins, Iowa and Minnesota
Eric M. Sadorf, S. Michael Linhart
2000, Water-Resources Investigations Report 2000-4106
The quality of shallow alluvial ground water that is used for domestic supplies in the Wapsipinicon, Cedar, Iowa, and Skunk River Basins (Eastern Iowa Basins) is described. Water samples from 32 domestic-supply wells were collected from June through July 1998. This study of ground-water quality in alluvial aquifers in the...
Use of InSAR to identify land-surface displacements caused by aquifer-system compaction in the Paso Robles area, San Luis Obispo County, California, March to August 1997
D.W. Valentine, J.N. Densmore, D. L. Galloway, Falk Amelung
2000, Open-File Report 2000-447-A
The population in San Luis Obispo County has grown steadily during the 1990s, and some land use has been converted from dry farming to grazing to irrigated vineyards and urban areas. Because insufficient surface-water supplies are available to meet the growing demand, ground-water pumpage has increased and the resulting water-level...
Alaska resource data file, Chignik quadrangle
Steven H. Pilcher
2000, Open-File Report 2000-130
Descriptions of the mineral occurrences can be found in the report. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Data from a thick unsaturated zone underlying Oro Grande and Sheep Creek washes in the western part of the Mojave Desert, near Victorville, San Bernardino County, California
John A. Izbicki, Dennis A. Clark, Maria I. Pimental, Michael Land, John C. Radyk, Robert L. Michel
2000, Open-File Report 2000-262
This report presents data on the physical properties of unsaturated alluvial deposits and on the chemical and isotopic composition of soil water and soil gas collected at 12 monitoring sites in the western part of the Mojave Desert, near Victorville, California. Sites were installed using the ODEX air-hammer method. Seven...