Conference Papers
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Depositional sequences and facies in the Torok Formation, National Petroleum Reserve, Alaska (NPRA) Depositional sequences and facies in the Torok Formation, National Petroleum Reserve, Alaska (NPRA)
Brookian turbidites (Cretaceous through Tertiary) have become oil exploration objectives on the NorthSlope of Alaska during the past decade, and it is likely this focus will extend into the National Petroleum Reserve-Alaska (NPRA). A regional grid of 2-D seismic data, sparse well control, and field work in the Brooks Range foothills provide constraints for an ongoing effort to establish...
Authors
David W. Houseknecht, Christopher J. Schenk
Engineering history and impacts of the Bonneville landslide, Columbia River Gorge, Washington-Oregon, U.S.A Engineering history and impacts of the Bonneville landslide, Columbia River Gorge, Washington-Oregon, U.S.A
No abstract available.
Authors
R. L. Schuster, P. T. Pringle
Usoi landslide dam, southeastern Tajikistan Usoi landslide dam, southeastern Tajikistan
No abstract available.
Effects of water use diversion regulation and conservation on sediemtn transport with comparisons from the United States Effects of water use diversion regulation and conservation on sediemtn transport with comparisons from the United States
Too much sediment and too little water are related problems in China’s Yellow River Basin. Sediment yield in the basin averages about 2,100 t/(km2·a), greatest is of the world’s large rivers although the Yellow River ranks 31st in mean flow. A quarter of the sediment deposited in the 780-km lower reach, causing bed levels to rise an average of a meter per decade wang and other. Sediment
Authors
J. R. Gray, W. R. Osterkamp, Xu Jianhua
Watershed restoration for anadromous rainbow trout in Washington's Wind River, USA Watershed restoration for anadromous rainbow trout in Washington's Wind River, USA
Abstract not available
Authors
P.J. Connolly, B. Bair
11 things a geologist thinks an engineer should know about carbonate beaches 11 things a geologist thinks an engineer should know about carbonate beaches
This is a review of the geological aspects of carbonate beaches that a geologist thinks may be useful for an engineer. Classical geologic problems of carbonate beaches, for example how ancient examples are recognized in rock sequences, are of little interest to engineers. Geologists not involved in engineering problems may find it difficult to know what an engineer should understand...
Authors
Robert B. Halley
Water-quality assessment of surface-water microlayers at frog malformation sites in Minnesota Water-quality assessment of surface-water microlayers at frog malformation sites in Minnesota
No abstract available.
Authors
Perry M. Jones, M.A. Menheer, S.D. Zaugg, Howard E. Taylor, G. Aiken, E.M. Thurman, C. Rostad, D. Rosenberry
Mars Geodesy/Cartography Working Group recommendations on Mars cartographic constants and coordinate systems Mars Geodesy/Cartography Working Group recommendations on Mars cartographic constants and coordinate systems
NASA's Mars Geodesy/Cartography Working Group (MGCWG), established in 1998 and chaired since 2000 by one of us (TCD), consists of leading researchers in planetary geodesy and cartography at such diverse institutions as JPL, NASA Ames and Goddard Centers, Purdue and Ohio State Universities, Malin Space Science Systems, the German Center for Aerospace Research DLR, and the US Geological...
Authors
T. C. Duxbury, Randolph L. Kirk, Brent A. Archinal, G.A. Neumann
USGS high resolution topo-mapping of Mars with Mars Orbiter Camera Narrow-Angle images USGS high resolution topo-mapping of Mars with Mars Orbiter Camera Narrow-Angle images
We describe our initial experiences producing controlled digital elevation models (DEMs) of Mars with horizontal resolutions of ≤10 m and vertical precisions of ≤2 m. Such models are of intense interest at all phases of Mars exploration and scientific investigation, from the selection of safe landing sites to the quantitative analysis of the morphologic record of surface processes...
Authors
Randolph L. Kirk, Laurence A. Soderblom, Elpitha Howington-Kraus, Brent A. Archinal
USGS and DLR topographic mapping of Comet Borrelly USGS and DLR topographic mapping of Comet Borrelly
In the fall of 2001, NASA's Deep Space 1 (DS1) probe imaged Comet Borrelly during a flyby encounter. Three of the Borrelly images have geometry suitable to photogrammetrically map the nucleus, which form two stereopairs with an expected precision (EP) of ~410 m and ~670 m each. DS1 team members at the USGS and DLR have independently produced digital elevation models (DEMs) of Borrelly...
Authors
Elpitha Howington-Kraus, Randolph L. Kirk, Laurence A. Soderblom, Bernd Giese, Jurgen Oberst
The contribution of C3 and C4 grasses to interannual variability in time-integrated NDVI over the U.S. Great Plains The contribution of C3 and C4 grasses to interannual variability in time-integrated NDVI over the U.S. Great Plains
Time integrated normalized difference vegetation index (ΣNDVI) derived from NOAA AVHRR multitemporal imagery over a 10-yr period (1989-1998) was used as a surrogate for primary production to investigate the impact of interannual climate variability on grassland performance for central and northern U.S. Great Plains. First, the contribution of C3 and C4 species abundances to the major...
Authors
C. Ricotta, Bradley C. Reed, Larry L. Tieszen
New insights on timing of oil and gas generation in the central Gulf Coast interior zone based on hydrous-pyrolysis kinetic parameters New insights on timing of oil and gas generation in the central Gulf Coast interior zone based on hydrous-pyrolysis kinetic parameters
Timing of oil and gas generation from Turonian and Smackover source rocks in the central Gulf CoastInterior Zone was determined in one-dimensional burial-history curves (BHCs) using hydrous-pyrolysis kinetic parameters. The results predict that basal Smackover source-rock intervals with Type-IIS kerogen completed oil generation between 121 and 99 Ma, and Turonian source-rocks with Type...
Authors
Michael D. Lewan, Shirley P. Dutton, Stephen C. Ruppel, Tucker F. Hentz