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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Thermal maturation history of the Wilcox group (Paleocene-Eocene), Texas: Results of regional-scale multi-1D modeling
The thermal maturation history of the Paleocene-Eocene Wilcox Group has been reconstructed based on burial history models of 53 wells in the Texas coastal plain. This modeling study has been conducted in conjunction with a geologically based assessment of the oil and gas resources in Cenozoic strata of the Gulf of Mexico coastal plain and state waters. In the onshore Texas coastal plain, coals and
Authors
E. L. Rowan, Peter D. Warwick, Janet K. Pitman
Thirty-one years of debris-flow observation and monitoring near La Honda, California, USA
From 1975 until 2006,18 intense storms triggered at least 248 debris flows within 10 km2 northwest of the town of La Honda within the Santa Cruz Mountains, California. In addition to mapping debris flows and other types of landslides, studies included soil sampling and geologic mapping, piezometric and tensiometer monitoring, and rainfall measurement and recording. From 1985 until 1995, a system w
Authors
G. F. Wieczorek, R. C. Wilson, S. D. Ellen, M.E. Reid, A. S. Jayko
Time for a change: Revision of the process for judging student presentations
[No abstract available]
Authors
T.M. Sutton, D.L. Parrish, J.R. Jackson
Time-optimum packet scheduling for many-to-one routing in wireless sensor networks
This paper studies the WSN application scenario with periodical traffic from all sensors to a sink. We present a time-optimum and energy-efficient packet scheduling algorithm and its distributed implementation. We first give a general many-to-one packet scheduling algorithm for wireless networks, and then prove that it is time-optimum and costs max(2N(u1) - 1, N(u 0) -1) time slots, assuming each
Authors
W.-Z. Song, F. Yuan, R. LaHuser
Trends in the occurrence of MTBE in drinking water in the Northeast United States
Public water systems in Connecticut, Maine, Maryland, New Hampshire, New Jersey, and Rhode Island sampled treated drinking water from 1993-2006 and analyzed the samples for MTBE. The US Geological Survey examined trends in the occurrence of MTBE in drinking water derived from ground water in these States for two near-decadal time steps; 1993-1999 and 2000-2006. MTBE was detected in 14% of drinking
Authors
M.J. Moran
Tsunami inundation and sediment transport in vicinity of coastal mangrove forest
Field measurements from Sumatra of tsunami wave height, erosion and deposition form a comprehensive data set that is tested against the Delft3D tsunami inundation and sediment transport model. Relative agreement between measured and modeled maximum water levels and sediment erosion and accumulation provides confidence that the model is reasonably characterizing the important processes of tsunami i
Authors
G. Gelfenbaum, D. Vatvani, B. Jaffe, F. Dekker
Two-dimensional surface river flow patterns measured with paired RiverSondes
Two RiverSondes were operated simultaneously in close proximity in order to provide a two-dimensional map of river surface velocity. The initial test was carried out at Threemile Slough in central California. The two radars were installed about 135 m apart on the same bank of the channel. Each radar used a 3-yagi antenna array and determined signal directions using direction finding. The slough is
Authors
C.C. Teague, D.E. Barrick, P.M. Lilleboe, R. T. Cheng
Upper Neogene tephrochronologic correlations in the northern Rio Grande Rift, New Mexico and southern Colorado
No abstract available.
Authors
Janet L. Slate, Andrei M. Sarna-Wojcicki, Elmira Wan, Daniel Koning, Sean D. Connell, David P. Dethier, David B. Wahl, Michael Perkins
USGS advances in integrated, high-resolution sea-floor mapping: inner continental shelf to estuaries
The U.S. Geological Survey (USGS) has been involved in geological mapping of the sea floor for the past thirty years. Early geophysical and acoustic mapping efforts using GLORIA (Geologic LOng Range Inclined ASDIC) a long-range sidescan-sonar system, provided broad-scale imagery of deep waters within the U.S. Exclusive Economic Zone (EEZ). In the early 1990's, research emphasis shifted from deep-
Authors
J. F. Denny, W. C. Schwab, D. C. Twichell, T. F. O'Brien, W. W. Danforth, D. S. Foster, E. Bergeron, C.W. Worley, B. J. Irwin, B. Butman, P. C. Valentine, W. E. Baldwin, R.A. Morton, E. R. Thieler, D. R. Nichols, B.D. Andrews
USGS assessment of undiscovered oil and gas resources for the Oligocene Frio and Anahuac formations, U.S. Gulf of Mexico coastal plain and state waters: Review of assessment units
The Oligocene Frio and Anahuac formations were examined by the U.S. Geological Survey (USGS) as part of an assessment of technically recoverable undiscovered conventional and unconventional hydrocarbon resources in Paleogene and Neogene strata underlying the U.S. Gulf of Mexico Coastal Plain and state waters. Work included the identification of structural, stratigraphic, and tectonic relations bet
Authors
Sharon M. Swanson, Alexander W. Karlsen, Peter D. Warwick
USGS assessment of undiscovered oil and gas resources in Paleogene strata of the U.S. Gulf of Mexico coastal plain and state waters
This report presents a review of the U.S. Geological Survey (USGS) 2007 assessment of the undiscovered oil and gas resources in Paleogene strata underlying the U.S. Gulf of Mexico Coastal Plain and state waters. Geochemical, geologic, geophysical, thermal maturation, burial history, and paleontologic studies have been combined with regional cross sections and data from previous USGS petroleum asse
Authors
Peter D. Warwick, James L. Coleman, Paul C. Hackley, Daniel O. Hayba, Alexander W. Karlsen, Elisabeth L. Rowan, Sharon M. Swanson
USGS national surveys and analysis projects: Preliminary compilation of integrated geological datasets for the United States
The growth in the use of Geographic nformation Systems (GS) has highlighted the need for regional and national digital geologic maps attributed with age and rock type information. Such spatial data can be conveniently used to generate derivative maps for purposes that include mineral-resource assessment, metallogenic studies, tectonic studies, human health and environmental research. n 1997, th
Authors
Suzanne W. Nicholson, Douglas B. Stoeser, Frederic H. Wilson, Connie L. Dicken, Steve Ludington