The Commerce geophysical lineament and its possible relation to Mesoproterozoic igneous complexes and large earthquakes in the central Illinois Basin
Thomas G. Hildenbrand, John H. McBride, D. Ravat
2002, Seismological Research Letters (73) 640-659
New inversions of existing magnetic and gravity data lead to insights on upper crustal structures in the central Illinois basin. The results of 2D and 3D inversion techniques suggest that the source of the Commerce geophysical lineament follows the southeast boundary of a dense and magnetic, northeast-trending igneous center, named...
Interpreting the earthquake source of the Wabash Valley seismic zone (Illinois, Indiana, and Kentucky) from seismic-reflection, gravity, and magnetic-intensity data
John H. McBride, Thomas G. Hildenbrand, William J. Stephenson, Christopher J. Potter
2002, Seismological Research Letters (73) 660-686
Reprocessing of seismic-reflection data reveals new images of upper- to middle-crustal structures beneath the Wabash Valley seismic zone, located north of the New Madrid seismic zone within the seismically active southern Illinois basin. Four intersecting deep seismic profiles (243 km total) indicate an anomalous, 5–10-km-wide zone of dipping reflections and...
Map Showing Seacliff Response to Climatic and Seismic Events, Depot Hill, Santa Cruz County, California
Cheryl J. Hapke, Bruce M. Richmond, Mimi M. D’Iorio
2002, Miscellaneous Field Studies Map 2398
INTRODUCTION The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented seacliff slope failures. Long-term average erosion rates calculated for this section of coast (Moore and others, 1999) do not provide the spatial or temporal data...
Distribution and Structure of Holocene Sediments in Cape Cod Bay, Massachusetts
Richard R. Rendigs, Harley J. Knebel
2002, IMAP 2729
Tectonic map of the Death Valley ground-water model area, Nevada and California
J.B. Workman, C.M. Menges, W. R. Page, E. B. Ekren, P. D. Rowley, G. L. Dixon
2002, Miscellaneous Field Studies Map 2381-B
No abstract available. ...
Geologic map of the Deer Island Quadrangle, Columbia County, Oregon and Cowlitz County, Washington
R.C. Evarts
2002, Miscellaneous Field Studies Map 2392
Geologic Map of the Diana Chasma Quadrangle (V-37), Venus
V. L. Hansen, H.R. DeShon
2002, IMAP 2752
Introduction The Diana Chasma quadrangle (V-37), an equatorial region between 0° to 25° S. and 150° to 180° E. that encompasses ~8,400,000 km2, is broadly divided into southern Rusalka Planitia in the north, eastern Aphrodite Terra in the central region, and unnamed regions to the south. Geologic mapping constrains the...
Controlled photomosaic map of Callisto JC 15M CMN
Water Resources Division, U.S. Geological Survey
2002, IMAP 2770
This sheet is one in a series of maps of the Galilean satellites of Jupiter at a nominal scale of 1:15,000,000. This series is based on data from the Galileo Orbiter Solid-State Imaging (SSI) camera and the cameras of the Voyager 1 and 2 spacecraft. Mercator and Polar Stereographic projections...
Hydrologic conditions in the Bill Williams River National Wildlife Refuge and Planet Valley, Arizona, 2000
Richard P. Wilson, Sandra J. Owen-Joyce
2002, Water-Resources Investigations Report 2002-4214
During a period of sustained base-flow conditions in the Bill Williams River below Alamo Dam in west central Arizona from March to July 2000, the channel of the river through Planet Valley was dry, and the water table sloped almost due west parallel to the main slope of the flood...
Water quality in the Little Sac River basin near Springfield, Missouri, 1999-2001
Brenda J. Smith
2002, Water-Resources Investigations Report 2002-4154
The Little Sac River, north of Springfield, Missouri, flows through mainly agricultural and forest land. However, the quality of the river water is a concern because the river flows into Stockton Lake, which is a supplemental drinking water source for Springfield. Large bacterial densities and nutrient concentrations are primary concerns...
Ground-water quality beneath an urban residential and commercial area, Montgomery, Alabama, 1999-2000
James L. Robinson
2002, Water-Resources Investigations Report 2002-4052
The Black Warrior River aquifer, which is composed of the Coker, Gordo, and Eutaw Formations, supplies more than 50 percent of the ground water used for public water supply in the Mobile River Basin. The city of Montgomery, Alabama, is partially built upon a recharge area for the Black Warrior...
Summary of Flow Loss between Selected Cross Sections on the Rio Grande in and near Albuquerque, New Mexico
Jack E. Veenhuis
2002, Water-Resources Investigations Report 2002-4131
The upper middle Rio Grande Basin, as defined by the U.S. Army Corps of Engineers, extends from the headwaters of the Rio Grande in southwestern Colorado to Fort Quitman, Texas. Most of the basin has a semiarid climate typical of the southwestern United States. This climate drives a highly variable...
Lead isotopic analyses of selected soil samples from the USEPA Vasquez Blvd.-I-70 study area, Denver, CO
D.M. Unruh
2002, Open-File Report 2002-321
Large amounts of arsenic contamination, in excess of 2000 ppm, have been found in some residential surface soils in northern Denver, Colorado (USEPA, 1999). Associated with the arsenic are elevated levels of metals such as lead, cadmium and mercury. Potential sources of this contamination include waste from smelters in the...
Geologic map of the Bell Regio Quadrangle (V-9), Venus
Bruce A. Campbell, Patricia G. Campbell
2002, IMAP 2743
The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the venusian atmosphere on October 12, 1994. Magellan had the objectives of (1) improving knowledge of the geologic processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2)...
Coal Extraction - Environmental Prediction
C. Blaine Cecil, Susan J. Tewalt
2002, Fact Sheet 073-02
Coal from the Appalachian region has supplied energy to the Nation for more than 200 years. Appalachian coal fueled America through a civil war and helped win two world wars. Appalachian coal has also provided fuel for keeping America warm in the winter and cool in the summer and has...
Simulation of flow and water quality of the Arroyo Colorado, Texas, 1989-99
Timothy H. Raines, Roger M. Miranda
2002, Water-Resources Investigations Report 2002-4110
A model parameter set for use with the Hydrological Simulation Program—FORTRAN watershed model was developed to simulate flow and water quality for selected properties and constituents for the Arroyo Colorado from the city of Mission to the Laguna Madre, Texas. The model simulates flow, selected water-quality properties, and constituent concentrations....
Ground-water quality and effects of poultry confined animal feeding operations on shallow ground water, upper Shoal Creek basin, Southwest Missouri, 2000
Douglas N. Mugel
2002, Water-Resources Investigations Report 2002-4125
Forty-seven wells and 8 springs were sampled in May, October, and November 2000 in the upper Shoal Creek Basin, southwest Missouri, to determine if nutrient concentrations and fecal bacteria densities are increasing in the shallow aquifer as a result of poultry confined animal feeding operations (CAFOs). Most of the land use in...
Arsenic concentrations in bedrock wells in Colchester, East Hampton, and Woodstock, Connecticut
C. J. Brown, S. K. Chute
2002, Water-Resources Investigations Report 2002-4135
No abstract available....
Ground-water monitoring plan, water quality, and variability of agricultural chemicals in the Missouri River alluvial aquifer near the City of Independence, Missouri, well field, 1998-2000
Brian P. Kelly
2002, Water-Resources Investigations Report 2002-4096
A detailed ground-water sampling plan was developed and executed for 64 monitoring wells in the city of Independence well field to characterize ground-water quality in the 10-year zone of contribution. Samples were collected from monitoring wells, combined Independence well field pumpage, and the Missouri River at St. Joseph, Missouri, from...
Assessments of aquifer sensitivity on Navajo Nation and adjacent lands and ground-water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project, Arizona, New Mexico, and Utah
Paul J. Blanchard
2002, Water-Resources Investigations Report 2002-4051
The U.S. Environmental Protection Agency requested that the Navajo Nation conduct an assessment of aquifer sensitivity on Navajo Nation lands and an assessment of ground-water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project. Navajo Nation lands include about 17,000 square miles in northeastern Arizona, northwestern New Mexico, and...
User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow
Weixing Guo, C.D. Langevin
2002, Techniques of Water-Resources Investigations 06-A7
This report documents a computer program (SEAWAT) that simulates variable-density, transient, ground-water flow in three dimensions. The source code for SEAWAT was developed by combining MODFLOW and MT3DMS into a single program that solves the coupled flow and solute-transport equations. The SEAWAT code follows a modular structure, and thus, new...
Effects of highway-deicer application on ground-water quality in a part of the Calumet Aquifer, northwestern Indiana
Lee R. Watson, E. Randall Bayless, Paul M. Buszka, John T. Wilson
2002, Water-Resources Investigations Report 2001–4260
The effects of highway-deicer application on ground-water quality were studied at a site in northwestern Indiana using a variety of geochemical indicators. Site characteristics such as high snowfall rates; large quantities of applied deicers; presence of a high-traffic highway; a homogeneous, permeable, and unconfined aquifer; a shallow water table; a...
Spatial data available on the web at http://mrdata.usgs.gov/
Bruce Johnson
2002, Fact Sheet 071-02
Earth science information is important to decisionmakers who formulate public policy related to mineral resource sustainability, land stewardship, environmental hazards, the economy, and public health. To meet the growing demand for easily accessible data, the Mineral Resources Program has developed, in cooperation with other Federal and State agencies, an Internet-based,...
Glacial geology and aquifer characteristics of the Big River area, central Rhode Island
Janet Radway Stone, David C. Dickerman
2002, Water-Resources Investigations Report 2001-4169
No abstract available....
Epigenetic lead, zinc, silver, antimony, tin, and gold veins in Boulder Basin, Blaine and Custer Counties, Idaho: Potential for economic tin mineralization
Michael E. Ratchford
2002, Bulletin 2064-JJ
Boulder Basin is in a northwest-trending belt of allochthonous Paleozoic rocks in the Boulder Mountains of central Idaho. Regional Tertiary extension resulted in widespread normal faulting and coeval emplacement of shallow-level intrusions and extrusive rocks of the Challis Volcanic Group. Epigenetic lead-zinc-silver-antimony-tin-gold vein deposits formed during Tertiary extension and are...
