Publications
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Overview: The Chemehuevi Formation along the lower Colorado River
A distinctive set of fine-grained deposits occurs throughout the lower Colorado River Valley, extending from just below the mouth of Grand Canyon to well into the river delta below Yuma, AZ (Figure 1), an along-channel distance of over 700 km. Upstream of Parker, Arizona, the deposits consist of scattered erosional remnants up to 150 m above the modern floodplain. Below Parker, they occur in isola
Authors
Daniel V. Malmon, Keith A. Howard
Stratigraphy of Colorado River deposits in lower Mohave Valley, Arizona and California
Deposits in lower Mohave Valley and upper Topock Gorge near Topock, Arizona and Park Moabi, California record a succession of depositional and erosional events since late Miocene time that relate to the development of the Colorado River. Upper Miocene alluvial fans were deposited toward a depocenter east of the present valley bottom, indicating there was no valley outlet then through the area of T
Authors
Keith A. Howard, D.V. Malmon
The geology and tectonic history of Santa Clara County
No abstract available.
Authors
M. Clark Blake, C. M. Wentworth
Investigating atmospheric mercury with the U.S. Geological Survey Mobile Mercury Laboratory
Atmospheric mercury is thought to be an important source of mercury present in fish, resulting in numerous local, statewide, tribal, and province-wide fish consumption advisories in the United States and Canada (U.S. Environmental Protection Agency, 2007a). To understand how mercury occurs in the atmosphere and its potential to be transferred from the atmosphere to the biosphere, the U.S. Geologic
Authors
Allan Kolker
Assessment of undiscovered oil and gas resources in Tertiary strata of the Gulf Coast, 2007
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 113.7 trillion cubic feet of undiscovered natural gas, a mean of 690 million barrels of undiscovered oil, and a mean of 3.7 billion barrels of undiscovered natural gas liquids in onshore lands and State waters of the Gulf Coast.
Authors
Russell F. Dubiel, Janet K. Pitman, Ofori N. Pearson, Peter D. Warwick, Alexander W. Karlsen, James L. Coleman, Paul C. Hackley, Daniel O. Hayba, Sharon M. Swanson, Ronald R. Charpentier, Troy A Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
Petroleum Systems and Geologic Assessment of Oil and Gas in the San Joaquin Basin Province, California
In 2003, the U.S. Geological Survey (USGS) completed an assessment of the oil and gas resource potential of the San Joaquin Basin Province of California. The assessment is based on the geologic elements of each Total Petroleum System defined in the province, including hydrocarbon source rocks (source-rock type and maturation and hydrocarbon generation and migration), reservoir rocks (sequence stra
A Program for Partitioning Shifted Truncated Lognormal Distributions into Size-Class Bins
In recent years, oil and gas accumulation-size frequency distributions have become a standard way to characterize undiscovered conventional oil and gas resources that have been postulated by geologic assessments. The preparation of such distributions requires the assessment geologists to explicitly choose parameters for the probability distribution for the sizes of undiscovered accumulations. The
Authors
E. D. Attanasi, Ronald R. Charpentier
New vitrinite reflectance data for the Bighorn Basin, north-central Wyoming and south-central Montana
The Bighorn Basin is a large Laramide (Late Cretaceous through Eocene) structural and sedimentary basin that encompasses about 10,400 mi2 in north-central Wyoming and south-central Montana (fig. 1). Important conventional oil and gas resources have been discovered and produced from reservoirs ranging in age from Cambrian through Tertiary (Fox and Dolton, 1989, 1996a, b; De Bruin, 1993). In additio
Authors
Thomas M. Finn, Mark J. Pawlewicz
Assessment of Undiscovered Oil and Gas Resources of the East Greenland Rift Basins Province
Northeast Greenland is the prototype for the U.S. Geological Survey's Circum-Arctic Oil and Gas Resource Appraisal. Using a geology-based methodology, the USGS estimates the mean undiscovered, conventional petroleum resources in the province to be approximately 31,400 MBOE (million barrels of oil equivalent) of oil, gas, and natural gas liquids.
Authors
Donald L. Gautier
Assessment of undiscovered oil and gas resources in Cretaceous-Tertiary coal beds of the Gulf Coast region, 2007
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 4.06 trillion cubic feet of undiscovered, technically recoverable natural gas in Cretaceous-Tertiary coal beds of the onshore lands and State waters of the Gulf Coast.
Authors
Peter D. Warwick
Organic geochemistry of sediments in nearshore areas of the Mississippi and Atchafalaya Rivers: I. General organic characterization
This report presents results on the general organic characteristics of sediment cores collected from the coastal zone of the Mississippi River system, including distributions of the important nutrient elements (C, N, P, and S). This was part of a larger study conducted from 2001-2005 to examine the delivery of sediment-associated contaminants to the Gulf of Mexico by the Mississippi River system,
Authors
William H. Orem, Robert J. Rosenbauer, Peter W. Swarzenski, Harry E. Lerch, M.D. Corum, Anne L. Bates
Coal quality and major, minor, and trace elements in the Powder River, Green River, and Williston basins, Wyoming and North Dakota
The U.S. Geological Survey (USGS), in cooperation with the Wyoming Reservoir Management Group (RMG) of the Bureau of Land Management (BLM) and nineteen independent coalbed methane (CBM) gas operators in the Powder River and Green River Basins in Wyoming and the Williston Basin in North Dakota, collected 963 coal samples from 37 core holes (fig. 1; table 1) between 1999 and 2005. The drilling and c
Authors
Gary D. Stricker, Romeo M. Flores, Michael H. Trippi, Margaret S. Ellis, Carol M. Olson, Jonah E. Sullivan, Kenneth I. Takahashi