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...
Methods of analysis by the U.S. Geological Survey Organic Geochemistry Research Group—Determination of glyphosate, aminomethylphosphonic acid, and glufonsinate in water using online solid-phase extraction and high-performance liquid chromatography/mass spectrometry
E.A. Lee, A.P. Strahan, E.M. Thurman
2001, Open-File Report 2001-454
An analytical method for the determination of glyphosate, its principal degradation compound, aminomethylphosphonic acid (AMPA), and glufosinate in water with varying matrices has been developed. Four different sample matrices fortified at 0.2 and 2.0 μg/L (micrograms per liter) were analyzed using precolumn derivatization with 9-fluorenylmethylchloroformate (FMOC). After derivatization, cleanup and...
Hydrogeologic data for the Big River–Mishnock River stream-aquifer system, central Rhode Island
P. A. Craft
2001, Open-File Report 2001-250
Hydrogeology, ground-water development alternatives, and water quality in the Big Mishnock stream-aquifer system in central Rhode Island are being investigated as part of a long-term cooperative program between the Rhode Island Water Resources Board and the U.S. Geological Survey to evaluate the ground-water resources throughout Rhode Island. The study area includes...
Rb-Sr whole-rock and mineral ages, K-Ar, 40Ar/39Ar, and U-Pb mineral ages, and strontium, lead, neodymium, and oxygen isotopic compositions for granitic rocks from the Salinian composite terrane, California
R. W. Kistler, D.E. Champion
2001, Open-File Report 2001-453
This report summarizes new and published age and isotopic data for whole-rocks and minerals from granitic rocks in the Salinian composite terrane, California. Rubidium-strontium whole-rock ages of plutons are in two groups, Early Cretaceous (122 to 100 Ma) and Late Cretaceous (95 to 82 Ma). Early Cretaceous plutons occur in...
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...
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...
Spectral induced polarization measurements at the Carlisle mine dump, New Mexico
David L. Campbell, Shay Beanland
2001, Open-File Report 2001-363
No abstract available....
Thickness and geometry of Cenozoic deposits in California Wash area, Nevada, based on gravity and seismic-reflection data
V.E. Langenheim, J. J. Miller, W. R. Page, J. A. Grow
2001, Open-File Report 2001-393
Gravity and seismic-reflection data provide insights into the subsurface stratigraphy and structure of the California Wash area of southern Nevada. This area is part of the Lower Colorado flow system and stratigraphic and structural data are important inputs into developing the hydrogeologic framework. These data indicate that the basin beneath...
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...
The National Water-Quality Assessment Program; entering a new decade of investigations
R. J. Gilliom, P. A. Hamilton, T. L. Miller
2001, Fact Sheet 071-01
Investigation of dioxin concentrations in the lower Roanoke River basin, North Carolina, February 26-March 7, 2001
K. F. Miller, D. A. Walters
2001, Open-File Report 2001-345
Dioxin is a toxic chemical that, when present in the environment, can cause cancer and birth defects in humans. Dioxin is of particular concern because concentrations of dioxin that were released into the environment many years ago remain a contributing factor to current exposure. Dioxin exposure often occurs in surface-water...
Initial findings; national survey of MTBE, other ether oxygenates, and other VOCs in community drinking-water sources
Barbara L. Rowe, Stephen Grady, John S. Zogorski, Bart Koch, Paul Tratnyek
2001, Open-File Report 2001-399
Water-quality, bed-sediment, and biological data (October 1999 through September 2000) and statistical summaries of data for streams in the upper Clark Fork basin, Montana
K. A. Dodge, Michelle I. Hornberger, C. P. C. David
2001, Open-File Report 2001-379
Water levels in the Yucca Mountain area, Nevada, 1999
C.S. Savard
2001, Open-File Report 2001-343
A summary of findings of the West-Central Florida Coastal Studies Project
A. C. Hine, G. R. Brooks, R.A. Davis Jr., L. J. Doyle, G. Gelfenbaum, S. D. Locker, D.C. Twichell, R. Weisberg
2001, Open-File Report 2001-303
Improving water quality in Sweetwater Reservoir, San Diego County, California; sources and mitigation strategies for trihalomethane (THM)-forming carb
M.S. Fram, B.A. Bergamaschi, Roger Fujii
2001, Fact Sheet 112-01
Mineral resources: Out of the ground... into our daily lives
Dave Frank, Judy Weathers, John Galloway
2001, Open-File Report 2001-360
Minerals and mineral resources are a part of our everyday lives. This poster depicts a home and shows the different mineral(s) and mineral materials used to make the various products found in the average home....
Surface Fractures Formed in the Potrero Canyon, Tapo Canyon, and McBean Parkway Areas in Association with the 1994 Northridge, California Earthquake
Michael J. Rymer, Jerome A. Treiman, Thomas J. Powers, Thomas E. Fumal, David P. Schwartz, John C. Hamilton, Francesca R. Cinti
2001, Miscellaneous Field Studies Map 2360
INTRODUCTION The magnitude 6.7 (M6.7) Northridge earthquake of 17 January 1994 strongly shook the Los Angeles urban region, resulting in 33 direct deaths, more than 20,000 people forced out of their homes, and an estimated $20 billion in damage (Hall, 1994). The earthquake was caused by slip on a previously unrecognized...
Water budget for the Nueces Estuary, Texas, May-October 1998
D.J. Ockerman
2001, Fact Sheet 081-01
The Texas Water Development Board (TWDB), Texas Parks and Wildlife Department (TPWD), and Texas Natural Resource Conservation Commission (TNRCC) are charged by the Texas Legislature with determining freshwater inflows required to maintain the ecological health of streams, bays, and estuaries in Texas. To determine required inflows, the three agencies collect...
Characterization of surface-water quality based on real-time monitoring and regression analysis, Quivira National Wildlife Refuge, south-central Kansas, December 1998 through June 2001
Victoria G. Christensen
2001, Water-Resources Investigations Report 2001-4248
Because of the considerable wildlife benefits offered by the Quivira National Wildlife Refuge in south-central Kansas, there is a desire to ensure suitable water quality. To assess the quality of water flowing from Rattlesnake Creek into the refuge, the U.S. Geological Survey collected periodic water samples from December 1998 through...
Evaluacion de los recursos potenciales del petroleo y gas, en Centro y Suramerica [Evaluation of potential petroleum and gas resources in Central and South America]
C.S. Schenk
2001, Fact Sheet 038-01
El Servicio Geológico de los Estados Unidos (USGS, por sus siglas en inglés) completó recientemente un estudio evaluativo de recursos potenciales de petróleo y gas en 130 provincias de petróleo seleccionadas en diferentes partes del mundo (USGS, 2000). De estas 130 provincias, 23 se encuentran en Suramérica, Centroamérica, y la...
Estimativas de possiveis recursos de petroleo e gas na America Central e na America do Sul [Estimates of possible petroleum and gas resources in Central American and South America]
C.S. Schenk
2001, Fact Sheet 039-01
O U.S. Geological Survey recentemente completou estimativas de possíveis recursos de petróleo e gás em 130 áreas petrolíferas pré-determinadas no mundo (USGS, 2000). Vinte e três destas áreas ficam na América do Sul, na América Central, e no Caribe (fig. 1). Os resultados estão apresentados na tabela 1. Nas 23...
PCBs in tissue of fish from the Spokane River, Washington, 1999
Dorene E. MacCoy
2001, Fact Sheet 067-01
Several studies over the past 6 years have indicated that elevated concentrations of polychlorinated biphenyls (PCBs) in the Spokane River, Washington, are a potential hazard to human and aquatic health. To help address these concerns, fish were collected from the Spokane River in 1999 and analyzed for PCBs for a...
Water-quality monitoring of Sweetwater Reservoir
Michael Majewski
2001, Fact Sheet 070-01
Sweetwater Authority is concerned with the quality of water it provides to its customers. Results from the water-quality monitoring study that the USGS is conducting in the Sweetwater watershed show that the contaminant concentrations in bed sediments, water, and air are reflected in increased urbanization. The bed sediments show the...
Estimated age and source of the young fraction of ground water at the Idaho National Engineering and Environmental Laboratory
Eurybiades Busenberg, Niel Plummer, R. C. Bartholomay
2001, Water-Resources Investigations Report 2001-4265
No abstract available....
