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Page 59, results 1451 - 1475

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Molybdenum-A Key Component of Metal Alloys
S.J. Kropschot
2010, Fact Sheet 2009-3106
Molybdenum, whose chemical symbol is Mo, was first recognized as an element in 1778. Until that time, the mineral molybdenite-the most important source of molybdenum-was believed to be a lead mineral because of its metallic gray color, greasy feel, and softness. In the late 19th century, French metallurgists discovered that...
Assessing groundwater availability in the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
Sharon L. Qi, Scott Christenson
2010, Fact Sheet 2010-3008
The U.S. Geological Survey's Groundwater Resources Program is conducting an assessment of groundwater availability to gain a clearer understanding of the status of the Nation's groundwater resources and the natural and human factors that can affect those resources. The goals of this national effort are to define the current status...
2008 High-Flow Experiment at Glen Canyon Dam Benefits Colorado River Resources in Grand Canyon National Park
Theodore S. Melis, David J. Topping, Paul E. Grams, David M. Rubin, Scott Wright, Amy E. Draut, Joseph E. Hazel Jr., Barbara E. Ralston, Theodore A. Kennedy, Emma Rosi-Marshall, Josh Korman, Kara D. Hilwig, Lara M. Schmit
2010, Fact Sheet 2010-3009
On March 5, 2008, the Department of the Interior began a 60-hour high-flow experiment at Glen Canyon Dam, Arizona, to determine if water releases designed to mimic natural seasonal flooding could be used to improve downstream resources in Glen Canyon National Recreation Area and Grand Canyon National Park. U.S. Geological...
USGS Science Serves Public Health
Herbert T. Buxton
2010, Fact Sheet 2010-3004
Human health so often depends on the health of the environment and wildlife around us. The presence of naturally occurring or human environmental contaminants and the emergence of diseases transferred between animals and humans are growing concerns worldwide. The USGS is a source of natural science information vital for understanding...
Assessment of undiscovered oil and gas resources of four west Africa geologic provinces
Michael E. Brownfield, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Janet K. Pitman, Richard M. Pollastro, Christopher J. Schenk, Marilyn E. Tennyson
2010, Fact Sheet 2010-3006
Four geologic provinces located along the northwest and west-central coast of Africa recently were assessed for undiscovered oil, natural gas, and natural gas liquids resources as part of the U.S. Geological Survey's (USGS) World Oil and Gas Assessment. Using a geology-based assessment methodology, the USGS estimated mean volumes of 71.7...
Health effects of energy resources
William Orem, Calin Tatu, Nikola Pavlovic, Joseph Bunnell, Allan Kolker, Mark Engle, Ben Stout
2010, Fact Sheet 2009-3096
Energy resources (coal, oil, and natural gas) are among the cornerstones of modern industrial society. The exploitation of these resources, however, is not without costs. Energy materials may contain harmful chemical substances that, if mobilized into air, water, or soil, can adversely impact human health and environmental quality. In order...
Drilling a Deep Geologic Test Well at Fort Pulaski National Monument, Georgia
Arthur P. Schultz, Ellen Seefelt
2010, Fact Sheet 2009-3112
The U.S. Geological Survey, in cooperation with the National Park Service, is drilling a deep geologic test well at Fort Pulaski National Monument, Georgia. The operation is scheduled to run between mid-February and mid-April 2010. When completed, the well will be about 1,500 feet deep. The purpose of this test...
Assessing the vulnerability of public-supply wells to contamination: Glacial aquifer system in Woodbury, Connecticut
Martha L. Jagucki, Craig J. Brown, J. Jeffrey Starn, Sandra M. Eberts
2010, Fact Sheet 2010-3002
This fact sheet highlights findings from the vulnerability study of a public-supply well in Woodbury, Connecticut. The well typically produces water at the rate of 72 gallons per minute from the glacial aquifer system in the Pomperaug River Basin. Water samples were collected at the public-supply well and at monitoring...
An overview of historical channel adjustment and selected hydraulic values in the Lower Sabine and Lower Brazos River Basins, Texas and Louisiana
Franklin T. Heitmuller, Lauren E. Greene, John D. John D. Gordon
2010, Fact Sheet 2010-3005
The Sabine and Brazos are alluvial rivers; alluvial rivers are dynamic systems that adjust their geometry in response to changes in streamflow (discharge) and sediment load. In fluvial geomorphology, the term 'channel adjustment' refers to river channel changes in three geometric dimensions: (1) channel slope (profile); (2) the outline or...
Integrating Agriculture and Conservation
Mark W. Vandever
2010, Fact Sheet 2009-3099
The USGS produces the needed science-based information to guide management actions and policy decisions that support wildlife habitat and other environmental services compatible with USDA conservation goals and farm operations. The Policy Analysis and Science Assistance Branch of the Fort Collins Science Center (FORT) has conducted research involving a national...
Algal toxins in Upper Klamath Lake, Oregon: Linking water quality to juvenile sucker health
S. P. VanderKooi, S. M. Burdick, K. R. Echols, C. A. Ottinger, B. H. Rosen, T. M. Wood
2010, Fact Sheet 2009-3111
As the lead science agency for the Department of Interior, the U.S. Geological Survey is actively involved in resource issues in the Klamath River basin. Activities include research projects on endangered Lost River and shortnose suckers, threatened coho salmon, groundwater resources, seasonal runoff forecasting, water quality in Upper Klamath Lake...
Streamflow of 2008--Water year summary
Jian Xiaodong, David M. Wolock, Harry F. Lins, Steve Brady
2009, Fact Sheet 2009-3003
The maps and graphs appearing in this summary describe streamflow conditions for water-year 2008 (October 1, 2007 to September 30, 2008) in the context of the 79-year period 1930-2008, unless otherwise noted. The illustrations are based on observed data from the U.S. Geological Survey's (USGS) National Streamflow Information Program. The...
A brief geologic history of Volusia County, Florida
Edward R. German
2009, Fact Sheet 2009-3101
Volusia County is in a unique and beautiful setting. This Florida landscape is characterized by low coastal plains bordered by upland areas of sandy ridges and many lakes. Beautiful streams and springs abound within the vicinity. Underneath the land surface is a deep layer of limestone rocks that stores fresh,...
Taste and odor occurrence in Lake William C. Bowen and Municipal Reservoir #1, Spartanburg County, South Carolina
Celeste Journey, Jane M. Arrington
2009, Fact Sheet 2009-3043
The U.S. Geological Survey and Spartanburg Water are working cooperatively on an ongoing study of Lake Bowen and Reservoir #1 to identify environmental factors that enhance or influence the production of geosmin in the source-water reservoirs. Spartanburg Water is using information from this study to develop management strategies to reduce...
Streamgaging in Pennsylvania: 1883-2009
Randall R. Durlin
2009, Fact Sheet 2009-3048
The Commonwealth of Pennsylvania contains 83,602 miles of streams within its borders. These streams are natural resources that influence the lives and economy of Pennsylvania residents daily. The water resources are used on a daily basis for recreation, power generation, drinking water, agriculture, industry, and many other uses, emphasizing the...
Evaluation of the Efficacy of Iodophor Disinfection of Walleye and Northern Pike Eggs to Eliminate Viral Hemorrhagic Septicemia Virus
M.T. Tuttle-Lau, K.A. Phillips, M.P. Gaikowski
2009, Fact Sheet 2009-3107
Viral hemorrhagic septicemia virus (VHSv) is a serious fish pathogen that has been responsible for large-scale fish kills in the Great Lakes since 2005. It causes high mortality and resulting outbreaks have severe economic consequences for aquaculture. Iodophor disinfection of salmonid eggs is a standard hatchery practice to reduce the...
Summary of Hydrologic Conditions in Georgia, 2008
Andrew E. Knaak, John K. Joiner, Michael F. Peck
2009, Fact Sheet 2009-3109
The United States Geological Survey (USGS) Georgia Water Science Center (WSC) maintains a long-term hydrologic monitoring network of more than 290 real-time streamgages, more than 170 groundwater wells, and 10 lake and reservoir monitoring stations. One of the many benefits of data collected from this monitoring network is that analysis...
Stormwater runoff: What it is and why it is important in Johnson County, Kansas
Teresa J. Rasmussen, Heather C. Schmidt
2009, Fact Sheet 2009-3103
Stormwater runoff is a leading contributor to pollution in streams, rivers, and lakes in Johnson County, Kansas, and nationwide. Because stormwater runoff contains pollutants from many different sources, decreasing pollution from stormwater runoff is a challenging task. It requires cooperation from residents, businesses, and municipalities. An important step in protecting...
An estimate of recoverable heavy oil resources of the Orinoco Oil Belt, Venezuela
Christopher J. Schenk, Troy A. Cook, Ronald R. Charpentier, Richard M. Pollastro, Timothy R. Klett, Marilyn E. Tennyson, Mark A. Kirschbaum, Michael E. Brownfield, Janet K. Pitman
2009, Fact Sheet 2009-3028
The Orinoco Oil Belt Assessment Unit of the La Luna-Quercual Total Petroleum System encompasses approximately 50,000 km2 of the East Venezuela Basin Province that is underlain by more than 1 trillion barrels of heavy oil-in-place. As part of a program directed at estimating the technically recoverable oil and gas resources...
Applying New Methods to Diagnose Coral Diseases
Christina A. Kellogg, David G. Zawada
2009, Fact Sheet 2009-3113
Coral disease, one of the major causes of reef degradation and coral death, has been increasing worldwide since the 1970s, particularly in the Caribbean. Despite increased scientific study, simple questions about the extent of disease outbreaks and the causative agents remain unanswered. A component of the U.S. Geological Survey Coral...
US Topo: Topographic Maps for the Nation
Patricia L. Hytes
2009, Fact Sheet 2009-3108
US Topo is the next generation of topographic maps from the U.S. Geological Survey (USGS). Arranged in the familiar 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel (and perform) like the traditional paper topographic maps for which the USGS is so well known. In contrast...
Water Resources of Ascension Parish
J.M. Griffith, R.B. Fendick
2009, Fact Sheet 2009-3063
Ascension Parish, located along the banks of the Mississippi River in south-central Louisiana, contains fresh groundwater and surface-water resources. In 2005, about 202 million gallons per day (Mgal/d) were withdrawn from water sources in Ascension Parish. About 94 percent (190 Mgal/d) was withdrawn from surface water, and 6 percent (12...
Water Resources of Rapides Parish
J.M. Griffith
2009, Fact Sheet 2009-3056
Rapides Parish, located in central Louisiana, contains fresh groundwater and surface-water resources. In 2005, about 443 million gallons per day (Mgal/d) were withdrawn from water sources in Rapides Parish. About 92 percent (409 Mgal/d) was withdrawn from surface water, and 8 percent (34 Mgal/d) was withdrawn from groundwater. Withdrawals for...
Water Resources of Ouachita Parish
Dan J. Tomaszewski, John K. Lovelace, Jason M. Griffith
2009, Fact Sheet 2009-3086
Ouachita Parish, located in north-central Louisiana, contains fresh groundwater and surface-water resources. In 2005, about 152 million gallons per day (Mgal/d) were withdrawn from water sources in Ouachita Parish. About 84 percent (128 Mgal/d) was withdrawn from surface water, and 16 percent (24 Mgal/d) was withdrawn from groundwater. Power generation...