Publications
Filter Total Items: 858
Interpreting the earthquake source of the Wabash Valley seismic zone (Illinois, Indiana, and Kentucky) from seismic-reflection, gravity, and magnetic-intensity data
Reprocessing of seismic-reflection data reveals new images of upper- to middle-crustal structures beneath the Wabash Valley seismic zone, located north of the New Madrid seismic zone within the seismically active southern Illinois basin. Four intersecting deep seismic profiles (243 km total) indicate an anomalous, 5–10-km-wide zone of dipping reflections and diffractions below the western flank of
Authors
John H. McBride, Thomas G. Hildenbrand, William J. Stephenson, Christopher J. Potter
Subsurface and petroleum geology of the southwestern Santa Clara Valley ("Silicon Valley"), California
Gravity anomalies, historical records of exploratory oil wells and oil seeps, new organic-geochemical results, and new stratigraphic and structural data indicate the presence of a concealed, oil-bearing sedimentary basin beneath a highly urbanized part of the Santa Clara Valley, Calif. A conspicuous isostatic-gravity low that extends about 35 km from Palo Alto southeastward to near Los Gatos refle
Authors
Richard G. Stanley, Robert C. Jachens, Paul G. Lillis, Robert J. McLaughlin, Keith A. Kvenvolden, Frances D. Hostettler, Kristin A. McDougall, Leslie B. Magoon
By
Energy and Minerals Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Groundwater and Streamflow Information Program, Central Energy Resources Science Center, Pacific Coastal and Marine Science Center, Geology, Minerals, Energy, and Geophysics Science Center
A Geochemical Trophic Cascade in Yellowstone's Geothermal Environments
We contrast the geochemistry of the Madison drainage, which has high concentrations of geothermal features, with the Lamar drainage of Yellowstone National Park, USA, and trace the consequences of geochemical differences through abiotic and biotic linkages in the ecosystem. Waters in the geothermal-dominated drainage contained anomalously high levels of fluoride (F) and silica (SiO2). Soils, strea
Authors
R.A. Garrott, L. E. Eberhardt, James K. Otton, P.J. White, Maurice A. Chaffee
Material-balance assessment of the New Albany-Chesterian petroleum system of the Illinois basin
The New Albany-Chesterian petroleum system of the Illinois basin is a well-constrained system from which petroleum charges and losses were quantified through a material-balance assessment. This petroleum system has nearly 90,000 wells penetrating the Chesterian section, a single New Albany Shale source rock accounting for more than 99% of the produced oil, well-established stratigraphic and struct
Authors
M. D. Lewan, M. E. Henry, D. K. Higley, Janet K. Pitman
Unconventional shallow biogenic gas systems
Unconventional shallow biogenic gas falls into two distinct systems that have different attributes. Early-generation systems have blanketlike geometries, and gas generation begins soon after deposition of reservoir and source rocks. Late-generation systems have ringlike geometries, and long time intervals separate deposition of reservoir and source rocks from gas generation. For both types of syst
Authors
G. W. Shurr, J.L. Ridgley
Basin-centered gas systems of the U.S.
Basin-center accumulations, a type of continuous accumulation, have spatial dimensions equal to or exceeding those of conventional oil and gas accumulations, but unlike conventional fields, cannot be represented in terms of discrete, countable units delineated by downdip hydrocarbon-water contacts. Common geologic and production characteristics of continuous accumulations include their occurrence
Authors
Marin A. Popov, Vito F. Nuccio, Thaddeus S. Dyman, Timothy A. Gognat, Ronald C. Johnson, James W. Schmoker, Michael S. Wilson, Charles E. Bartberger
Chemical composition of strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation: Channel-composited and individual rock samples of measured section J and their relationship of measured sections A and B, central part of Rasmuss
This study, one in a series, reports bulk chemical composition of rock samples collected from a core, referred to as Measured Section J, drilled at a site that subsequently was developed into the Enoch Valley phosphate mine in southeastern Idaho. The core is continuous and cuts through the entire thickness of the Meade Peak Phosphatic Shale Member of the Phosphoria Formation. The steeply dipping M
Authors
J. R. Herring, R. I. Grauch, D. F. Siems, R. G. Tysdal, E. A. Johnson, R. A. Zielinski, G. A. Desborough, A. Knudsen, M. E. Gunter
Compelling new evidence for Paleocene dinosaurs in the Ojo Alamo Sandstone, San Juan Basin, New Mexico and Colorado, USA
No abstract available.
Authors
James E. Fassett, Spencer G. Lucas, Robert A. Zielinski, James R. Budahn
U.S. Geological Survey world petroleum assessment 2000: Description and results
The set of 4 CD-ROM discs, documents the U.S. Geological Survey World Petroleum Assessment 2000 and includes estimates of the quantities of conventional oil, gas, and natural gas liquids outside the United States that have the potential to be added to reserves in the next 30 years (1995 to 2025). Two components, undiscovered resources and reserve growth, are estimated. One hundred and forty nine t
Authors
Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository; Day 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications
No abstract available.
Authors
Leonid A. Neymark, James B. Paces, Zell E. Peterman, B. M. Marshall, Joseph F. Whelan
Undiscovered oil and gas in the Big Cypress National Preserve: A total petroleum system assessment of the South Florida basin, Florida
No abstract available.
Authors
Richard M. Pollastro, Christopher J. Schenk, Ronald R. Charpentier
The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska
In anticipation of the need for scientific support for policy decisions and in light of the decade-old perspective of a previous assessment, the USGS has completed a reassessment of the petroleum potential of the ANWR 1002 area. This was a comprehensive study by a team of USGS scientists in collaboration on technical issues (but not the assessment) with colleagues in other agencies and universitie
Authors