Quality-assurance plan for the analysis of suspended sediment by the U.S. Geological Survey in Montana
Kent A. Dodge, John H. Lambing
2006, Open-File Report 2006-1242
A quality-assurance plan has been developed for use by the sediment laboratory of the U.S. Geological Survey Montana Water Science Center in conducting activities related to the analysis of suspended sediment. The plan documents quality-assurance policies for sediment-laboratory certification, personnel responsibilities and training, documentation requirements, and laboratory safety. The plan...
Aeromagnetic and gravity data over the Central Transantarctic Mountains (CTAM), Antarctica: a website for the distribution of data and maps
E. D. Anderson, C. A. Finn, D. Damaske, J.D. Abraham, F. Goldmann, J. W. Goodge, P. Braddock
2006, Open-File Report 2006-1255
Near complete coverage of the East Antarctic Shield by ice hampers geological study of crustal architecture important for understanding global tectonic and climate history. Limited exposures in the central Transantarctic Mountains (CTAM), however, show that Archean and Proterozoic rocks of the shield as well as Neoproterozoic-lower Paleozoic sedimentary successions were...
Metallogeny of the Great Basin: Crustal evolution, fluid flow, and ore deposits
Albert H. Hofstra, Alan R. Wallace
2006, Open-File Report 2006-1280
The Great Basin physiographic province in the Western United States contains a diverse assortment of world-class ore deposits. It currently (2006) is the world’s second leading producer of gold, contains large silver and base metal (Cu, Zn, Pb, Mo, W) deposits, a variety of other important metallic (Fe, Ni,...
National Assessment of Shoreline Change Part 3: Historical Shoreline Change and Associated Coastal Land Loss Along Sandy Shorelines of the California Coast
Cheryl J. Hapke, David Reid, Bruce M. Richmond, Peter Ruggiero, Jeff List
2006, Open-File Report 2006-1219
Beach erosion is a chronic problem along many open-ocean shores of the United States. As coastal populations continue to grow and community infrastructures are threatened by erosion, there is increased demand for accurate information regarding past and present trends and rates of shoreline movement. There is also a need for...
Salt marsh dieback in coastal Louisiana: Survey of plant and soil conditions in Barataria and Terrebonne basins, June 2000-September 2001
Karen L. McKee, Irving A. Mendelssohn, Michael D. Materne
2006, Open-File Report 2006-1167
Sudden and extensive dieback of the perennial marsh grass, Spartina alterniflora Loisel (smooth cordgrass), which dominates regularly flooded salt marshes along the Gulf of Mexico and Atlantic coastlines, occurred in the coastal zone of Louisiana. The objectives of this study were to assess soil and plant conditions in dieback areas...
Deep resistivity structure of Yucca Flat, Nevada Test Site, Nevada
Theodore H. Asch, Brian D. Rodriguez, Jay A. Sampson, Erin L. Wallin, Jackie M. Williams
2006, Open-File Report 2006-1261
The Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) at their Nevada Site Office are addressing groundwater contamination resulting from historical underground nuclear testing through the Environmental Management program and, in particular, the Underground Test Area project. One issue of concern is the nature of the somewhat...
Water and sediment quality of the Yukon River and its tributaries, from Eagle to St. Marys, Alaska, 2002-2003
Mark M. Dornblaser, Douglas R. Halm
2006, Open-File Report 2006-1228
The Yukon River basin is a vast and diverse ecosystem covering more than 330,000 square miles, an area larger than Texas. Approximately 126,000 people live within the basin and depend on the Yukon River and its tributaries for drinking water, commerce, and recreational and subsistence fish and game resources. Much of...
Report of the USGS Coastal and Marine Geology Modeling Workshop, Pacific Marine Science Center, Santa Cruz, CA, March 22-23, 2005
Christopher R. Sherwood
2006, Open-File Report 2005-1193
A U.S. Geological Survey (USGS) Coastal and Marine Geology (CMG) Modeling Workshop was held to discuss the general topic of coastal modeling, defined broadly to include circulation, waves, sediment transport, water quality, ecology, sediment diagenesis, morphology change, and coastal evolution, on scales ranging from seconds and a few centimeters (individual...
Photographs, correspondence, and presentations related to the La Conchita, California, landslide
Randall W. Jibson
2006, Open-File Report 2006-1278
This report contains the following photographs and information related to the La Conchita, California, landslide: 1) Digital photographs taken by the author during a visit to the La Conchita landslide on January 14, 2005. 2) Correspondence related to the approval and release of USGS Open-File Report 2005-1067, Landslide Hazards at...
Physical properties of two core samples from Well 34-9RD2 at the Coso geothermal field, California
C.A. Morrow, D.A. Lockner
2006, Open-File Report 2006-1230
The Coso geothermal field, located along the Eastern California Shear Zone, is composed of fractured granitic rocks above a shallow heat source. Temperatures exceed 640 ?F (~338 ?C) at a depth of less than 10000 feet (3 km). Permeability varies throughout the geothermal field due to the competing processes of...
A Spatial Overlay Ranking Method for a Geospatial Search of Text Objects
Kenneth J. Lanfear
2006, Open-File Report 2006-1279
Earth-science researchers need the capability to find relevant information by location and topic. Conventional geographic techniques that simply check whether polygons intersect can efficiently achieve a high recall on location, but can not achieve precision for ranking results in likely order of importance to the reader. A spatial overlay ranking...
Hawaiian Volcano Observatory seismic data, January to December 2005
Jennifer S. Nakata
2006, Open-File Report 2006-1231
The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year. The seismic summary is offered without interpretation as a source of preliminary data. It is complete in the sense that most data for events of M-1.5 routinely gathered by the Observatory are included. The HVO summaries have been...
Assessment of undiscovered technically recoverable conventional petroleum resources of northern Afghanistan
T. R. Klett, G. F. Ulmishek, C. J. Wandrey, Warren F. Agena, Douglas Steinshouer
2006, Open-File Report 2006-1253
Using a geology-based assessment methodology, the U.S. Geological Survey - Afghanistan Ministry of Mines and Industry Joint Oil and Gas Resource Assessment Team estimated mean volumes of undiscovered petroleum in northern Afghanistan; the resulting estimates are 1.6 billion barrels (0.2 billion metric tons) of crude oil, 16 trillion cubic feet...
Assessment of Appalachian basin oil and gas resources: Devonian shale— Middle and Upper Paleozoic Total Petroleum System
Robert C. Milici, Christopher S. Swezey
2006, Open-File Report 2006-1237
The U.S. Geological Survey (USGS) recently completed an assessment of the technically recoverable undiscovered hydrocarbon resources of the Appalachian Basin Province. The assessment province includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia and Alabama. The assessment was based on six major petroleum systems, which...
Abstracts of the Annual Meeting of Planetary Geologic Mappers, Nampa, Idaho 2006
Kenneth L. Tanaka, R. Stephen Saunders
Tracy K. P. Gregg, editor(s)
2006, Open-File Report 2006-1263
Approximately 18 people attended this year's mappers meeting, and many more submitted abstracts and maps in absentia. The meeting was held on the campus of Northwest Nazarene University (NNU), and was graciously hosted by NNU's School of Health and Science. Planetary mapper Dr. Jim Zimbelman is an alumnus of NNU,...
Geographic information systems (GIS) spatial data compilation of geodynamic, tectonic, metallogenic, mineral deposit, and geophysical maps and associated descriptive data for northeast Asia
Vera V. Naumova (compiler), Mikhail I. Patuk, Marina Yu. Kapitanchuk, Warren J. Nokleberg, Alexander I. Khanchuk, Leonid M. Parfenov, Sergey M. Rodionov, Robert J. Miller, Michael F. Diggles
2006, Open-File Report 2006-1150
This is the online version of a CD-ROM publication. It contains all of the data that are on the disc but extra files have been removed: index files, software installers, and Windows autolaunch files. The purpose of this publication is to provide a high-quality spatial data compilation (Geographical Information System or...
Potentiometric surface of the Upper Floridan aquifer in the St. Johns River water management district and vicinity, Florida, September 2005
Sandra L. Kinnaman
2006, Open-File Report 2006-1108
This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 2005. Potentiometric contours are based on water-level measurements collected at 643 wells during the period September 12-28, near the end of the wet season. Some contours are...
Flood of May 23, 2004, in the Turkey and Maquoketa River basins, northeast Iowa
David A. Eash
2006, Open-File Report 2006-1067
Severe flooding occurred on May 23, 2004, in the Turkey River Basin in Clayton County and in the Maquoketa River Basin in Delaware County following intense thunderstorms over northeast Iowa. Rain gages at Postville and Waucoma, Iowa, recorded 72-hour rainfall of 6.32 and 6.55 inches, respectively, on May 23. Unofficial...
Geologic interpretation and multibeam bathymetry of the sea floor in southeastern Long Island Sound
Lawrence J. Poppe, Seth D. Ackerman, Elizabeth F. Doran, Marc S. Moser, Helen F. Stewart, Nicholas A. Forfinski, Uther L. Gardner, Jennifer A. Keene
2006, Open-File Report 2006-1059
Digital terrain models (DTMs) produced from multibeam echosounder (MBES) bathymetric data provide valuable base maps for marine geological interpretations (e.g. Todd and others, 1999; Mosher and Thomson, 2002; ten Brink and others, 2004; Poppe and others, 2006a,b). These maps help define the geological variability of the sea floor (one of...
Science for maintaining riverine ecosystems: Actions for the USGS identified in the workshop "Analysis of Flow and Habitat for Aquatic Communities"
Kenneth E. Bencala, David B. Hamilton, James H. Petersen
2006, Open-File Report 2006-1256
Federal and state agencies need improved scientific analysis to support riverine ecosystem management. The ability of the USGS to integrate geologic, hydrologic, chemical, geographic, and biological data into new tools and models provides unparalleled opportunities to translate the best riverine science into useful approaches and usable information to address issues...
A history of intertidal flat area in south San Francisco Bay, California: 1858 to 2005
Bruce Jaffe, Amy C. Foxgrover
2006, Open-File Report 2006-1262
A key question in salt pond restoration in South San Francisco Bay is whether sediment sinks created by opening ponds will result in the loss of intertidal flats. Analyses of a series of bathymetric surveys of South San Francisco Bay made from 1858 to 2005 reveal changes in intertidal flat...
Seaside, Oregon tsunami pilot study— Modernization of FEMA flood hazard maps
Tsunami Pilot Study Working Group
2006, Open-File Report 2006-1234
FEMA Flood Insurance Rate Map (FIRM) guidelines do not currently exist for conducting and incorporating tsunami hazard assessments that reflect the substantial advances in tsunami research achieved in the last two decades; this conclusion is the result of two FEMA-sponsored workshops and the associated Tsunami Focused Study. Therefore, as part...
Storms and flooding in California in December 2005 and January 2006 — A preliminary assessment
Charles Parrett, Richard A. Hunrichs
2006, Open-File Report 2006-1182
A series of storms beginning before Christmas 2005 and ending after New Year’s Day 2006 produced significant runoff over much of northern California. The storms resulted in an estimated $300 million in damages and Federal disaster declarations in 10 counties. Several precipitation stations in the Sierra Nevada had precipitation totals...
Seismicity of Afghanistan and vicinity
James W. Dewey
2006, Open-File Report 2006-1185
This publication describes the seismicity of Afghanistan and vicinity and is intended for use in seismic hazard studies of that nation. Included are digital files with information on earthquakes that have been recorded in Afghanistan and vicinity through mid-December 2004. Chapter A provides an overview of the seismicity and tectonics...
Potential tight gas resources in a frontier province - Jurassic through Tertiary strata beneath the Brooks Range foothills, Arctic Alaska
Philip H. Nelson, Kenneth J. Bird, David W. Houseknecht, Christopher J. Potter, Thomas E. Moore
2006, Open-File Report 2006-1172
Beneath the foothills of the Brooks Range, rocks of the Lower Cretaceous-Tertiary Brookian and Jurassic-Lower Cretaceous Beaufortian megasequences have been deeply buried and exhumed, and now exhibit characteristics of 'tight gas sandstones'. The data recovered from drilling, well tests, and cores exhibit the potential for substantial gas reserves over a...
