Conference Papers
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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 almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Architecture of Fort Union paleovalley conglomerates related to aquifer potential in the western Wind River basin Architecture of Fort Union paleovalley conglomerates related to aquifer potential in the western Wind River basin
No abstract available
Authors
R. M. Flores, A.C. Clark, C. W. Keighin
Assessment and prediction of debris-flow hazards Assessment and prediction of debris-flow hazards
Study of debris-flow geomorphology and initiation mechanism has led to better understanding of debris-flow processes. This paper reviews how this understanding is used in current techniques for assessment and prediction of debris-flow hazards.
Authors
Gerald F. Wieczorek
Avian community responses to cottonwood revegetation along the Rio Grande in New Mexico Avian community responses to cottonwood revegetation along the Rio Grande in New Mexico
No abstract available at this time
Authors
G.H. Farley, L. M. Ellis, J.N. Stuart, N.J. Scott
Behavioral methods for assessing impacts of contaminants on early life stage fishes Behavioral methods for assessing impacts of contaminants on early life stage fishes
No abstract available.
Authors
E. E. Little, J.F. Fairchild, A. J. DeLonay
Breakpoint-forced and bound long waves in the nearshore: A model comparison Breakpoint-forced and bound long waves in the nearshore: A model comparison
A finite-difference model is used to compare long wave amplitudes arising from two-group forced generation mechanisms in the nearshore: long waves generated at a time-varying breakpoint and the shallow-water extension of the bound long wave. Plane beach results demonstrate that the strong frequency selection in the outgoing wave predicted by the breakpoint-forcing mechanism may not be...
Authors
Jeffrey H. List
Bridge scour and change in contracted section, Razor Creek Bridge scour and change in contracted section, Razor Creek
Two large floods, 3 and 4 times the estimated 100-year peak discharge, occurred in 1986 and 1991 at a timber-pile bridge over Razor Creek in Montana. A bridge section surveyed after the 1991 flood was compared with a 1955 design section and showed total scour of 0.85 m at the left abutment, 2.23 m at the right abutment, and 0. 94 m at the pile bents. Calculated total scour based on...
Authors
Stephen R. Holnbeck, Charles Parrett, Todd N. Tillinger
Bridge-scour analysis using the water surface profile (WSPRO) model Bridge-scour analysis using the water surface profile (WSPRO) model
A program was developed to extract hydraulic information required for bridge-scour computations, from the Water-Surface Profile computation model (WSPRO). The program is written in compiled BASIC and is menu driven. Using only ground points, the program can compute average ground elevation, cross-sectional area below a specified datum, or create a Drawing Exchange Format (DXF) fie of...
Authors
David S. Mueller
Burial and temperature history of gas generation from coaly organic matter in the Late Cretaceous Mesaverde Formation and associated rocks in the deeper portions of the Wind River basin Burial and temperature history of gas generation from coaly organic matter in the Late Cretaceous Mesaverde Formation and associated rocks in the deeper portions of the Wind River basin
No abstract available
Authors
C.E. Barker, B.L. Crysdale
Calibration of the BASS acoustic current meter with carrageenan agar Calibration of the BASS acoustic current meter with carrageenan agar
The BASS current meter can measure currents down to the millimeter per second range. Due to the dependence of zero offset on pressure, determining a sensor referenced velocity requires accurate in situ zeroing of the meter. Previously, flow was restricted during calibration by placing plastic bags around the acoustic volume. In this paper, bacterial grade and carrageenan agars are used...
Authors
A.T. Morrison, A.J. Williams, M. Martini
Carbon isotopic data from test hole USW UZ-1, Yucca Mountain, Nevada Carbon isotopic data from test hole USW UZ-1, Yucca Mountain, Nevada
Rock-CO2-gas analyses in test hole USW UZ-1 at Yucca Mountain indicate that gas movement in the unsaturated zone is likely through a dry-fracture system with little porewater or caliche-calcite interaction. This is because near-surface ??13C values are of biogenic origin and have changed little throughout the total depth. Post-bomb 14C activity is observed to the depth of about 12 m. An...
Authors
In C. Yang, C.A. Peters, D.C. Thorstenson
Characterizing the hydrogeologic framework of the Death Valley region, Southern Nevada and California Characterizing the hydrogeologic framework of the Death Valley region, Southern Nevada and California
Three-dimensional (3-D) hydrogeologic modeling of the complex geology of the Death Valley region requires the application of a number of Geoscientific Information System (GSIS) techniques. This study, funded by United States Department of Energy as a part of the Yucca Mountain Project, focuses on an area of approximately 100,000 square kilometers (three degrees of latitude by three...
Authors
Claudia Faunt, Frank D'Agnese, Joe S. Downey, A. Keith Turner
Cleat development in coals of the Upper Cretaceous Mesaverde Formation, Pilot Butte area, Wind River Reservation, Wyoming Cleat development in coals of the Upper Cretaceous Mesaverde Formation, Pilot Butte area, Wind River Reservation, Wyoming
The cleat system developed in low-rank (mean viltrinite reflectance of 0.43 to 0.5 percent) coal beds in the Upper Cretaceous Mesaverde Formation was studied in outcrop and in coreholes drilled for coalbed methane evaluation near Pilot Butte in the central part of the Wind River Reservation. Cleats are the principal permeability pathway for fluids in coal beds. As a result, coalbed gas...
Authors
R. C. Johnson, A.C. Clark, R.J. Szmajter