Evidence of impaired reproduction by Western mosquitofish inhabiting seleniferous agricultural drainwater
Michael K. Saiki, R. Scott Ogle
1995, Transactions of the American Fisheries Society (124) 578-587
Western mosquitofish Gambusia affinis from the San Luis Drain (SLD), a major conveyance system for seleniferous agricultural subsurface (tile) drainage water in the San Joaquin Valley, California, experienced lower reproductive success than did mosquitofish from a nearby reference area (Pond 26 at the Volta Wildlife Area, VOLTA) that had no history of...
Mechanical modeling of circumferential and radial dike intrusion on Galapagos volcanoes
W.W. Chadwick Jr., James H. Dieterich
1995, Journal of Volcanology and Geothermal Research (66) 37-52
A distinctive and unusual pattern of eruptive fissures is observed on the active volcanoes of the Galapagos islands, reflecting circumferential dike intrusion near the calderas and radial dike intrusion on the volcano flanks. Elastic finite-element models were used to investigate how a stress field could be produced and maintained to...
Numerical simulations of the Shoemaker-Levy 9 impact plumes and clouds: A progress report
Eugene Merle Shoemaker, Paul J. Hassig, David J. Roddy
1995, Geophysical Research Letters (22) 1825-1828
Preliminary 2D/3D numerical simulations were carried out for the penetration of 1-km bodies in the Jovian atmosphere and the subsequent rise and collapse of the erupted plumes. A body that crushed at a stagnation point pressure of 5 kbar produced a plume that rose to 800 km....
Roberts rift, Canyonlands, Utah, a natural hydraulic fracture caused by comet or asteroid impact
Peter W. Huntoon, Eugene Merle Shoemaker
1995, Ground Water (33) 561-569
The impact that created Upheaval crater in Canyonlands National Park, Utah, is invoked here as the source for energy that simultaneously caused Roberts rift. However, no temporal linkage has been proven between the impact and rifting events.Roberts rift lies between 22 and 32 km northeast of the Upheaval impact crater...
Maps and diagrams showing acoustic and textural characteristics and distribution of bottom sedimentary environments, Boston Harbor and Massachusetts Bay
Harley J. Knebel, Ronald C. Circe
1995, Miscellaneous Field Studies Map 2280
This report illustrates, describes, and briefly discusses the acoustic and textural characteristics and the distribution of bottom sedimentary environments in Boston Harbor and Massachusetts Bay. The study is an outgrowth of a larger research program designed to understand the regional processes that distribute sediments and related contaminants in the area....
Photogeologic map showing distribution of sinkholes south of Fairplay, Park County, Colorado — A possible geologic hazard
D. R. Shawe, T. A. Steven, R. B. Taylor, C. H. Maxwell
1995, Miscellaneous Field Studies Map 2295
A large group of at least 50, and perhaps significantly more, sinkholes partially surrounds Black Mountain 6-10 mi south Fairplay in South Park, Park County, Colorado. The sinkholes occur in bedrock in the evaporite facies of the Middle Pennsylvania Minturn Formation, and in Quaternary soil, alluvium, and glacial outwash gravels...
Water-resources activities, North Dakota District, fiscal year 1994-95
1995, Open-File Report 95-105
The mission of the U.S. Geological Survey, Water Resources Division, is to provide the hydrologic information and understanding needed for the optimum utilization and management of the Nation's water resources for the overall benefit of the people of the United States. This report describes water-resources activities of the Water Resources...
Source parameters and crustal Q for four earthquakes in South Carolina
Joe B. Fletcher
1995, Seismological Research Letters (66) 44-61
Two three-component seismometers (one surface and one borehole) were re-installed on the Savannah River Site (SRS), South Carolina in July 1992 to determine attenuation in the Coastal Plain sediment wedge and source parameters of local earthquakes. Four earthquakes M ∼ 1.8 to 3.6 were recorded during the next 6 months. The largest...
Maps showing modern fissures and Quaternary faults in the Dry Lake Valley area, Lincoln County Nevada
W. C. Swadley
1995, IMAP 2501
No abstract available....
Geometeorological data collected by the USGS Desert Winds Project at Gold Spring, Great Basin desert, northeastern Arizona, 1979-1992
P. J. Helm, C. S. Breed, R. K. Tigges, P. A. Garcia
1995, Open-File Report 95-78
The primary purpose of the Desert Winds Project (DWP) is to obtain high-resolution meteorological data and related surface geological and vegetation data for natural (e.g., uncultivated) desert sites where wind is or has been a major erosive or depositional force. The objectives are twofold: (1) to provide the detailed field...
Steady-state simulation of ground-water flow in the Blaine Aquifer, southwestern Oklahoma and northwestern Texas
Donna L. Runkle, J. S. McLean
1995, Open-File Report 94-387
A generalized finite-difference model was prepared for the Blaine aquifer in southwestern Oklahoma and northwestern Texas. This report releases the model for use and modification. A grid of 1-square-mile nodes was established over the area, with 1,030 of the nodes actively simulated in the model. The steady-state model simulation used...
Ebb and flow of encroachment by nonnative rainbow trout in a small stream in the southern Appalachian Mountains
Gary L. Larson, S. E. Moore, Bart Carter
1995, Transactions of the American Fisheries Society (124) 613-622
Brook trout Salvelinus fontinalis is the native salmonid species of streams in the southern Appalachian Mountains. The present distribution of this species, once widespread from headwaters to lower reaches of large streams, is restricted to mostly headwater areas. Changes in the distribution of native brook trout in the presence...
Bibliography of publications by members of the Branch of Coal Geology, Office of Energy and Marine Geology, U.S. Geological Survey, January 1, 1985-September 30, 1994
Margaret S. Ellis
1995, Open-File Report 95-65-B
Preliminary geologic map of the Lunenburg and Fort Mitchell 7.5' quadrangles, Virginia
William C. Burton
1995, Open-File Report 95-4
The Lunenburg and Fort Mitchell 7.5' quadrangles have been mapped as part of the Geology of the South-Central Virginia Piedmont Project, a regional geologic mapping project of the U.S. Geological Survey. The two quadrangles include parts of Lunenburg, Mecklenburg, and Charlotte counties, and are located in the east-central part of...
Preliminary geologic map of the Panguitch Quadrangle, Garfield County, Utah
David W. Moore, Arthur W. Straub
1995, Open-File Report 95-9
Bottled water, spas, and early years of water chemistry
William Back, Edward R. Landa, Lisa Meeks
1995, Groundwater (33) 605-614
Although hot springs have been used and enjoyed for thousands of years, it was not until the late 1700s that they changed the course of world civilization by being the motivation for development of the science of chemistry. The pioneers of chemistry such as Priestley, Cavendish, Lavoisier, and Henry were...
Geology and geochemistry of Tertiary volcanic host rocks, Sleeper gold-silver deposit, Humboldt County, Nevada
J. Thomas Nash, W. C. Utterback, Wayne S. Trudel
1995, Bulletin 2090
Water-resources activities of the U.S. Geological Survey in Missouri, 1993-94
Felicia D. Headrick, Katherine L. Jenkins-Bartle
1995, Open-File Report 94-538
No abstract available....
Surface-water-quality assessment of the lower Kansas River basin, Kansas and Nebraska; results of investigations, 1987-90
J. O. Helgesen, editor(s)
1995, Open-File Report 94-365
Surface-water-quality conditions and trends were assessed in the lower Kansas River Basin, which drains about 15,300 square miles of mainly agricultural land in southeast Nebraska and northeast Kansas. On the basis of established water-quality criteria, most streams in the basin were suitable for uses such as public-water supply, irrigation, and...
Digital bedrock geologic map of the Cavendish quadrangle, Vermont
Nicholas M. Ratcliffe
1995, Open-File Report 95-203-A
No abstract available....
National Water-Quality Assessment Program: Ozark Plateaus biological study
Suzanne R. Femmer
1995, Fact Sheet 116-95
Map showing the distribution, mineralogy, and geochemistry of hydrothermally altered rocks in the Reno 1° x 2° quadrangle, Nevada and California
L. C. Rowan, B. A. Eiswerth, D. B. Smith, W. J. Ehmann, T. L. Bowers
1995, IMAP 2473
No abstract available....
Digital bedrock geologic map of the Cavendish Quadrangle, Vermont
Nicholas M. Ratcliffe
1995, Open-File Report 95-203-B
Selected hydrogeologic and water-quality data from Jones Beach Island, Long Island, New York
M. P. Scorca, T. E. Reilly, O.L. Franke
1995, Water-Resources Investigations Report 92-4171
A data-collection site was instrumented on Jones Beach Island, a barrier island south of Long Island, N.Y., to study local freshwater/ saltwater relations in the shallow ground-water system. A geologic test boring revealed about 88 feet of well-sorted glacial outwash sand above about 15 feet of Gardiners Clay,...
Virus and bacteria transport in a sandy aquifer, Cape Cod, MA
Roger C. Bales, Shimin Li, Kimberly M. Maguire, Moyasar T. Yahya, Charles P. Gerba, Ronald W. Harvey
1995, Groundwater (33) 653-661
Transport of the bacteriophage PRD-1, bacteria, and latex microspheres was studied in a sandy aquifer under natural-gradient conditions. The field injection was carried out at the U.S. Geological Survey's Toxic Substances Hydrology research site on Cape Cod. The three colloids and a salt tracer (Br−) moved along the same path....
