Low-fluorine Stockwork Molybdenite Deposits
Steve Ludington, Jane Hammarstrom, Nadine M. Piatak
2009, Open-File Report 2009-1211
Low-fluorine stockwork molybdenite deposits are closely related to porphyry copper deposits, being similar in their tectonic setting (continental volcanic arc) and the petrology (calc-alkaline) of associated igneous rock types. They are mainly restricted to the Cordillera of western Canada and the northwest United States, and their distribution elsewhere in the...
Apparent Resistivity and Estimated Interaction Potential of Surface Water and Groundwater along Selected Canals and Streams in the Elkhorn-Loup Model Study Area, North-Central Nebraska, 2006-07
Andrew Teeple, Joseph Vrabel, Wade H. Kress, James C. Cannia
2009, Scientific Investigations Report 2009-5171
In 2005, the State of Nebraska adopted new legislation that in part requires local Natural Resources Districts to include the effect of groundwater use on surface-water systems in their groundwater management plan. In response the U.S. Geological Survey, in cooperation with the Upper Elkhorn, Lower Elkhorn, Upper Loup, Lower Loup,...
Vegetation Status of the Keoladeo National Park, Bharatpur, Rajasthan, India (April 2009)
Beth A. Middleton
2009, Scientific Investigations Report 2009-5193
The biodiversity of aquatic plant species may be reduced in the future by drought and/or climate change in monsoonal wetlands. After a number of years of low water levels, the aquatic vegetation of the Keoladeo National Park in Bharatpur, Rajasthan, India, was assessed. Though likely reduced in areal extent, most...
Acid rain effects on Adirondack streams— Results from the 2003–05 Western Adirondack Stream Survey (the WASS Project)
Gregory B. Lawrence, Karen M. Roy, Barry P. Baldigo, Howard A. Simonin, Sophia I. Passy, Robert W. Bode, Susan B. Capone
2009, Fact Sheet 2009-3075
Traditionally lakes have been the focus of acid rain assessments in the Adirondack region of New York. However, there is a growing recognition of the importance of streams as environmental indicators. Streams, like lakes, also provide important aquatic habitat, but streams more closely reflect acid rain effects on soils and...
Users' manual and installation guide for the EverVIEW Slice and Dice Tool (Version 1.0 Beta)
Dustin Roszell, Craig Conzelmann, Sumani Chimmula, Anuradha Chandrasekaran, Christina Hunnicut
2009, Open-File Report 2009-1177
Network Common Data Form (NetCDF) is a self-describing, machine-independent file format for storing array-oriented scientific data. Over the past few years, there has been a growing movement within the community of natural resource managers in The Everglades, Fla., to use NetCDF as the standard data container for datasets based on...
Geologic Criteria for the Assessment of Sedimentary Exhalative (Sedex) Zn-Pb-Ag Deposits
Poul Emsbo
2009, Open-File Report 2009-1209
Sedex deposits account for more than 50 percent of the world's zinc and lead reserves and furnish more than 25 percent of the world's production of these two metals. This report draws on previous syntheses as well as on topical studies of deposits in sedex basins to determine the characteristics...
U.S. Geological Survey Science for the Wyoming Landscape Conservation Initiative - 2008 Annual Report
Zachary H. Bowen, Cameron L. Aldridge, Patrick J. Anderson, Timothy J. Assal, Lori Anne Baer, R. Sky Bristol, Natasha B. Carr, Geneva W. Chong, Jay E. Diffendorfer, Bradley C. Fedy, Steven L. Garman, Steve Germaine, Richard I. Grauch, Collin G. Homer, Daniel J. Manier, Matthew J. Kauffman, Natalie Latysh, Cynthia P. Melcher, Kirk A. Miller, Jessica Montag, Constance J. Nutt, Christopher Potter, Hall Sawyer, David B. Smith, Michael J. Sweat, Anna B. Wilson
2009, Open-File Report 2009-1201
The Wyoming Landscape Conservation Initiative (WLCI) was launched in 2007 in response to concerns about threats to the State's world class wildlife resources, especially the threat posed by rapidly increasing energy development in southwest Wyoming. The overriding purpose of the WLCI is to assess and enhance aquatic and terrestrial habitats...
Solid precipitation measurement intercomparison in Bismarck, North Dakota, from 1988 through 1997
Karen R. Ryberg, Douglas G. Emerson, Kathleen M. Macek-Rowland
2009, Scientific Investigations Report 2009-5180
A solid precipitation measurement intercomparison was recommended by the World Meteorological Organization (WMO) and was initiated after approval by the ninth session of the Commission for Instruments and Methods of Observation. The goal of the intercomparison was to assess national methods of measuring solid precipitation against methods whose accuracy and...
Summary of Seepage Investigations in the Yakima River Basin, Washington
C. S. Magirl, R. J. Julich, W.B. Welch, C.R. Curran, M. C. Mastin, J. J. Vaccaro
2009, Data Series 473
Discharge data collected by the U.S. Geological Survey, Washington State Department of Ecology, and Yakama Nation for seepage investigations in the Yakima River basin are made available as downloadable Microsoft Excel files. These data were collected for more than a century at various times for several different studies and are...
How to Use the Marine Realms Information Bank (MRIB) Digital Libraries
Frances L. Lightsom, Alan O. Allwardt
2009, Fact Sheet 2009-3083
Marine Realms Information Bank (MRIB) digital libraries provide access to free online scientific resources about oceans, coasts, and coastal watersheds. MRIB allows category, geographic, and keyword searching, alone or in combination. Instructions for searching the three MRIB libraries and for refining the searches are explained in detail....
Determination of glyphosate, its degradation product aminomethylphosphonic acid, and glufosinate, in water by isotope dilution and online solid-phase extraction and liquid chromatography/tandem mass spectrometry
Michael T. Meyer, Keith A. Loftin, Edward A. Lee, Gary H. Hinshaw, Julie E. Dietze, Elisabeth A. Scribner
2009, Techniques and Methods 5-A10
The U.S. Geological Survey method (0-2141-09) presented is approved for the determination of glyphosate, its degradation product aminomethylphosphonic acid (AMPA), and glufosinate in water. It was was validated to demonstrate the method detection levels (MDL), compare isotope dilution to standard addition, and evaluate method and compound stability. The original method...
Preliminary Physical Stratigraphy and Geophysical Data From the USGS Dixon Core, Onslow County, North Carolina
Ellen Seefelt, Wilma Aleman B. Gonzalez, Jean M. Self-Trail, Robert E. Weems, Lucy E. Edwards, Herbert A. Pierce, Colleen T. Durand
2009, Open-File Report 2009-1194
In October through November 2006, scientists from the U. S. Geological Survey (USGS) Eastern Region Earth Surface Processes Team (EESPT) and the Raleigh (N.C.) Water Science Center (WSC), in cooperation with the North Carolina Geological Survey (NCGS) and the Onslow County Water and Sewer Authority (ONWASA), drilled a stratigraphic test...
Data from a Thick Unsaturated Zone Underlying Two Artificial Recharge Sites along Oro Grande Wash in the Western Part of the Mojave Desert, near Victorville, San Bernardino County, California, 2001-2006
Dennis A. Clark, John A. Izbicki, Russell D. Johnson, Michael Land
2009, Data Series 438
This report presents data on the physical and hydraulic properties of unsaturated alluvial deposits and on the chemical and isotopic composition of water collected at two recharge sites in the western part of the Mojave Desert, near Victorville, California, from 2001 to 2006. Unsaturated-zone monitoring sites were installed adjacent to...
Summary of West Virginia Water-Resource Data through September 2008
R. D. Evaldi, S.M. Ward, J.S. White
2009, Open-File Report 2009-1199
The West Virginia Water Science Center of the U.S. Geological Survey, in cooperation with State and Federal agencies, obtains a large amount of data pertaining to the water resources of West Virginia each water year. A water year is the 12-month period beginning October 1 and ending September 30. These...
Production of a national 1:1,000,000-scale hydrography dataset for the United States: feature selection, simplification, and refinement
Robin H. Gary, Zachary D. Wilson, Christy-Ann M. Archuleta, Florence E. Thompson, Joseph Vrabel
2009, Scientific Investigations Report 2009-5202
During 2006-09, the U.S. Geological Survey, in cooperation with the National Atlas of the United States, produced a 1:1,000,000-scale (1:1M) hydrography dataset comprising streams and waterbodies for the entire United States, including Puerto Rico and the U.S. Virgin Islands, for inclusion in the recompiled National Atlas. This report documents the...
Recent subsidence and erosion at diverse wetland sites in the southeastern Mississippi Delta Plain
Robert A. Morton, Julie Bernier, Kyle W. Kelso
2009, Open-File Report 2009-1158
A prior study (U.S. Geological Survey Open-File Report 2005-1216) examined historical land- and water-area changes and estimated magnitudes of land subsidence and erosion at five wetland sites in the Terrebonne hydrologic basin of the Mississippi delta plain. The present study extends that work by analyzing interior wetland loss and relative...
Mississippi Valley-Type Lead-Zinc Deposit Model
David L. Leach, Ryan D. Taylor
2009, Open-File Report 2009-1213
Mississippi Valley-type (MVT) lead-zinc (Pb+Zn) deposits are found throughout the world, and these deposits are characteristically distributed over hundreds of square kilometers that define individual ore districts. The median size of individual MVT deposits is 7.0 million tonnes with grades of about 7.9 percent Pb+Zn metal. However, MVT deposits usually...
Hydrogeology and Ground-Water Flow in the Opequon Creek Watershed area, Virginia and West Virginia
Mark D. Kozar, David J. Weary
2009, Scientific Investigations Report 2009-5153
Due to increasing population and economic development in the northern Shenandoah Valley of Virginia and West Virginia, water availability has become a primary concern for water-resource managers in the region. To address these issues, the U.S. Geological Survey (USGS), in cooperation with the West Virginia Department of Health and Human...
Selected Natural Attenuation Monitoring Data, Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington, 2007 and 2008
R.S. Dinicola, R.L. Huffman
2009, Open-File Report 2009-1141
Previous investigations indicate that natural attenuation and biodegradation of chlorinated volatile organic compounds (VOCs) are substantial in groundwater beneath the 9-acre former landfill at Operable Unit 1 (OU 1), Naval Undersea Warfare Center, Division Keyport, Washington. Phytoremediation combined with on-going natural attenuation processes was the preferred remedy selected by the...
Climax-Type Porphyry Molybdenum Deposits
Steve Ludington, Geoffrey S. Plumlee
2009, Open-File Report 2009-1215
Climax-type porphyry molybdenum deposits, as defined here, are extremely rare; thirteen deposits are known, all in western North America and ranging in age from Late Cretaceous to mainly Tertiary. They are consistently found in a postsubduction, extensional tectonic setting and are invariably associated with A-type granites that formed after peak...
Use of the U.S. Geological Survey StreamStats Web Application for dam safety analysis
John D. Guthrie, Kernell G. Ries III, Peter A. Steeves
2009, Conference Paper, Dam Safety 2009 conference proceedings
No abstract available....
Delayed genetic effects of habitat fragmentation on the ecologically specialized Florida sand skink (Plestiodon reynoldsi)
Jonathan Q. Richmond, Duncan T. Reid, Kyle G. Ashton, Kelly R. Zamudio
2009, Conservation Genetics (10) 1281-1297
Populations rarely show immediate genetic responses to habitat fragmentation, even in taxa that possess suites of traits known to increase their vulnerability to extinction. Thus conservation geneticists must consider the time scale over which contemporary evolutionary processes operate to accurately portray the effects of habitat isolation. Here, we examine the...
Selenium bioaccumulation and body condition in shorebirds and terns breeding in San Francisco Bay, California, USA
Joshua T. Ackerman, Collin A. Eagles-Smith
2009, Environmental Toxicology and Chemistry (28) 2134-2141
The present study evaluated Se bioaccumulation in four waterbird species (n = 206 birds) that breed within San Francisco Bay, California, USA: American avocets (Recurvirostra americana), black-necked stilts (Himantopus mexicanus), Forster's terns (Sterna forsteri), and Caspian terns (Hydroprogne caspia). Selenium concentrations were variable and influenced by several factors, including species,...
To burn or not to burn Oriental bittersweet: A fire manager’s conundrum
Noel B. Pavlovic, Stacey A. Leicht-Young, Krystal Frohnapple, Neal Mulconrey
2009, Report
Oriental bittersweet (Celastrus orbiculatus) is a highly invasive liana (woody vine) that occurs throughout the Eastern United States. This twining plant can blanket and girdle adjacent vegetation, affecting succession and damaging trees. In areas where prescribed fire is a management tool, the response of Oriental bittersweet to fire needs to...
The dynamic interaction of climate, vegetation, and dust emission, Mojave Desert, USA
Frank Urban, Richard L. Reynolds, R. Fulton
2009, Book chapter, Arid environments and wind erosion
No abstract available....
