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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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DOI remote sensing activities 2014 DOI remote sensing activities 2014
No abstract available.
Authors
Gregory I. Snyder
Evaluation and prioritization of stream habitat monitoring in the Lower Columbia Salmon and Steelhead Recovery Domain as related to the habitat monitoring needs of ESA recovery plans Evaluation and prioritization of stream habitat monitoring in the Lower Columbia Salmon and Steelhead Recovery Domain as related to the habitat monitoring needs of ESA recovery plans
The lower Columbia River and its tributaries once supported abundant runs of salmon and steelhead; however, there are five species currently listed under the federal Endangered Species Act (ESA). The National Marine Fisheries Service has completed, and is proposing for adoption, a comprehensive ESA Recovery Plan for the Lower Columbia Evolutionarily Significant Units (ESUs) based on the...
Authors
Amy L. Puls, Kara Anlauf Dunn, Bernadette Graham Hudson
Evidence for Cambrian petroleum source rocks in the Rome trough of West Virginia and Kentucky, Appalachian basin Evidence for Cambrian petroleum source rocks in the Rome trough of West Virginia and Kentucky, Appalachian basin
A 130-foot-thick Cambrian black shale sampled from a core between 11,150 and 11,195 feet in the Exxon No. 1 Smith well in Wayne County, W. Va., has been identified as a good to very good source rock. The black shale is located in the Middle Cambrian Rogersville Shale of the Conasauga Group. Total organic carbon (TOC) values of four samples that range from 1.2 to 4.4 weight percent...
Authors
Robert T. Ryder, David C. Harris, Paul Gerome, Timothy J. Hainsworth, Robert A. Burruss, Paul G. Lillis, Daniel M. Jarvie, Mark J. Pawlewicz
Executive summary Executive summary
Fossil fuels from the Appalachian basin region have been major contributors to the Nation’s energy needs over much of the last three centuries. Early records indicate that Appalachian coal was first mined in the middle 1700s (Virginia and Pennsylvania) and was used sparingly to fuel colonial settlements and, later, a fledgling industrial-based economy along the eastern seaboard of the...
Authors
Leslie F. Ruppert, Robert T. Ryder
Final Project Memorandum: Ecological implications of mangrove forest migration in the southeastern U.S. Final Project Memorandum: Ecological implications of mangrove forest migration in the southeastern U.S.
Winter climate change has the potential to have a large impact on coastal wetlands in the southeastern United States. Warmer winter temperatures and reductions in the intensity of freeze events would likely lead to mangrove forest range expansion and salt marsh displacement in parts of the U.S. Gulf of Mexico and Atlantic coast. The objective of this research was to better evaluate the...
Authors
Michael J. Osland, Richard H. Day, Ken W. Krauss, Andrew S. From, Jack C. Larriviere, Mark W. Hester, Erik S. Yando, Jonathan A Willis
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2013 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2013
In 2013, the U.S. Geological Survey’s Lake Erie Biological Station successfully completed large vessel surveys in all three of Lake Erie’s basins. Lake Erie Biological Station’s primary vessel surveys included the Western Basin Forage Fish Assessment and East Harbor Forage Fish Assessment as well as contributing to the cooperative multi-agency Central Basin Hydroacoustics Assessment and...
Authors
Richard T. Kraus, Mark W. Rogers, Patrick Kocovsky, William Edwards, Betsy L. Bodamer Scarbro, Kevin R. Keretz, Stephanie A. Berkman
Flood-inundation maps for the White River near Edwardsport, Indiana Flood-inundation maps for the White River near Edwardsport, Indiana
Digital flood-inundation maps for a 3.3-mile reach of the White River near Edwardsport, (Ind.), were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal...
Authors
Kathleen K. Fowler
Geographic information system (GIS)-based maps of Appalachian basin oil and gas fields Geographic information system (GIS)-based maps of Appalachian basin oil and gas fields
One of the more recent maps of Appalachian basin oil and gas fields (and the adjoining Black Warrior basin) is the U.S. Geological Survey (USGS) compilation by Mast and others (1998) (see Trippi and others, this volume, chap. I.1). This map is part of a larger oil and gas field map for the conterminous United States that was derived by Mast and others (1998) from the Well History Control...
Authors
Robert T. Ryder, Scott A. Kinney, Stephen E. Suitt, Matthew D. Merrill, Michael H. Trippi
Geologic cross section D-D' through the Appalachian basin from the Findlay arch, Sandusky County, Ohio, to the Valley and Ridge province, Hardy County, West Virginia Geologic cross section D-D' through the Appalachian basin from the Findlay arch, Sandusky County, Ohio, to the Valley and Ridge province, Hardy County, West Virginia
This chapter is a re-release of U.S. Geological Survey Scientific Investigations Map 3067, of the same title, by Ryder and others (2009). For this chapter, two appendixes have been added that do not appear with the original version. Appendix A provides Log ASCII Standard (LAS) files for each drill hole along cross-section D-D'; they are text files which encode gamma-ray, neutron, density...
Authors
Robert T. Ryder, Robert D. Crangle, Michael H. Trippi, Christopher S. Swezey, Erika E. Lentz, Elisabeth L. Rowan, Rebecca S. Hope
Geologic cross section E-E' through the Appalachian basin from the Findlay arch, Wood County, Ohio, to the Valley and Ridge province, Pendleton County, West Virginia Geologic cross section E-E' through the Appalachian basin from the Findlay arch, Wood County, Ohio, to the Valley and Ridge province, Pendleton County, West Virginia
This chapter is a re-release of U.S. Geological Survey Scientific Investigations Map 2985, of the same title, by Ryder and others (2008). For this chapter, two appendixes have been added that do not appear with the original version. Appendix A provides Log ASCII Standard (LAS) files for each drill hole along cross-section E–E'; they are text files which encode gamma-ray, neutron, density...
Authors
Robert T. Ryder, Christopher S. Swezey, Robert D. Crangle, Michael H. Trippi
Geology and geophysics applied to groundwater hydrology at Fort Irwin, California Geology and geophysics applied to groundwater hydrology at Fort Irwin, California
Geologic and geophysical investigations in the vicinity of Fort Irwin National Training Center, California, have been completed in support of groundwater investigations, and are presented in eight chapters of this report. A generalized surficial geologic map along with field and borehole investigations conducted during 2010–11 provide a lithostratigraphic and structural framework for the...