Publications
Browse recent USGS publications related to energy resources.
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Map showing geology, oil and gas fields, and geologic provinces of the Caribbean Region Map showing geology, oil and gas fields, and geologic provinces of the Caribbean Region
This CD-ROM compilation contains a map and associated spatial data showing surface geology, faults, oil and gas field centerpoints, and geologic provinces of the Caribbean region, draped over a shaded relief image of topography and bathymetry. The map is provided in the Environmental Systems Research Institute, Inc. (ESRI) ArcMap and ArcReader GIS formats, as well as in Adobe Acrobat...
Authors
Christopher D. French, Christopher J. Schenk
Paleomagnetism and 40Ar/39Ar ages from volcanics extruded during the Matuyama and Brunhes Chrons near McMurdo Sound, Antarctica Paleomagnetism and 40Ar/39Ar ages from volcanics extruded during the Matuyama and Brunhes Chrons near McMurdo Sound, Antarctica
Maps of virtual geomagnetic poles derived from international geomagnetic reference field models show large lobes with significant departures from the spin axis. These lobes persist in field models for the last few millenia. The anomalous lobes are associated with observation sites at extreme southerly latitudes. To determine whether these features persist for millions of years...
Authors
L. Tauxe, Philip B. Gans, Edward A. Mankinen
Photomosaics and logs of trenches on the San Andreas Fault at Mill Canyon near Watsonville, California Photomosaics and logs of trenches on the San Andreas Fault at Mill Canyon near Watsonville, California
We present photomosaics and logs of the walls of trenches excavated for a paleoseismic study at Mill Canyon, one of two sites along the San Andreas fault in the Santa Cruz Mtns. on the Kelley-Thompson Ranch. This site was a part of Rancho Salsipuedes beginning in 1834. It was purchased by the present owner’s family in 1851. Remnants of a cabin/mill operations still exist up the canyon...
Authors
Thomas E. Fumal, Timothy E. Dawson, Rebecca Flowers, John C. Hamilton, Gordon F. Heingartner, James Kessler, Laura Samrad
Rooted Brooks Range ophiolite: Implications for Cordilleran terranes: Comment and Reply Rooted Brooks Range ophiolite: Implications for Cordilleran terranes: Comment and Reply
No abstract available.
Authors
R. Harris, Thomas E. Moore, K.R. Wirth, C. G. Mull
Ophiolite and volcanic arc assemblages on the Vizcaino Peninsula and Cedros Island region, Baja California Sur, Mexico: Mesozoic forearc lithosphere of the Cordilleran magmatic arc Ophiolite and volcanic arc assemblages on the Vizcaino Peninsula and Cedros Island region, Baja California Sur, Mexico: Mesozoic forearc lithosphere of the Cordilleran magmatic arc
Mesozoic ophiolites in the Vizcaíno Peninsula and Cedros Island region of Baja California Sur are suprasubduction zone Cordilleran-type ophiolites structurally juxtaposed with underlying high pressure-temperature subduction complex assemblages. The region is divided into three separate tectonostratigraphic terranes, but here we recognize stratigraphic, intrusive, and petrologie links...
Authors
D.L. Kimbrough, Thomas E. Moore
Assessment of the undiscovered oil and gas of the Senegal province, Mauritania, Senegal, the Gambia, and Guinea-Bissau, northwest Africa Assessment of the undiscovered oil and gas of the Senegal province, Mauritania, Senegal, the Gambia, and Guinea-Bissau, northwest Africa
Undiscovered, conventional oil and gas resources were assessed in the Senegal Province as part of the U.S. Geological Survey World Petroleum Assessment 2000 (U.S. Geological Survey World Energy Assessment Team, 2000). Although several total petroleum systems may exist in the province, only one composite total petroleum system, the Cretaceous-Tertiary Composite Total Petroleum System, was...
Authors
Michael E. Brownfield, Ronald R. Charpentier
Location and age database for selected foraminifer samples collected by Exxon Petroleum geologists in California Location and age database for selected foraminifer samples collected by Exxon Petroleum geologists in California
Most of the geologic maps published for central California before 1960 were made without the benefit of age determinations from microfossils. The ages of Cretaceous and Tertiary rocks in the mostly poorly exposed and structurally complex sedimentary rocks represented in the Coast Ranges are critical in determining stratigraphic succession or lack of it, and in determining whether the...
Authors
Earl E. Brabb, John M. Parker
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Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska
Ocentral Brooks Range consists of two superposed north-directed contractional orogens, one formed between 140-120 Ma and the other at ~60-45 Ma. The older orogen was an arc-continent collisional zone characterized by far-traveled allochthons and relatively low structural relief. The younger orogen is a retroarc thrust belt with relatively low amounts of shortening and high structural...
Authors
Thomas E. Moore, Christopher J. Potter, Paul B. O'Sullivan, Kevin L. Shelton, Michael B. Underwood
Petroleum source potential of the Lower Cretaceous mudstone succession of the NPRA and Colville Delta area, North Slope Alaska, based on sonic and resistivity logs Petroleum source potential of the Lower Cretaceous mudstone succession of the NPRA and Colville Delta area, North Slope Alaska, based on sonic and resistivity logs
Resource assessment of the North Slope of Alaska by the U. S. Geological Survey includes evaluation of the petroleum source potential of Mesozoic and Cenozoic rocks using the delta log R technique (Passey and others, 1990). Porosity and resistivity logs are used in combination with thermal maturity data to produce a continuous profile of total organic carbon content in weight % (TOC)...
Authors
Margaret A. Keller, Kenneth J. Bird
Hydrogeologic factors that influence ground water movement in the desert southwest United States Hydrogeologic factors that influence ground water movement in the desert southwest United States
A project to study ground-water and surface-water interactions in the desert southwestern United States was initiated in 2001 by the Tucson, Arizona office of the Water Resources Division, U.S. Geological Survey (USGS). One of the goals of the Southwest Ground-water Resources Project was to develop a regional synthesis that includes the use of available digital geologic data, which is...
Authors
Frank C. Chuang, Edwin H. McKee, Keith A. Howard
Distribution, richness, quality, and thermal maturity of source rock units on the North Slope of Alaska Distribution, richness, quality, and thermal maturity of source rock units on the North Slope of Alaska
Four source rock units on the North Slope were identified, characterized, and mapped to better understand the origin of petroleum in the area: Hue-gamma ray zone (Hue-GRZ), pebble shale unit, Kingak Shale, and Shublik Formation. Rock-Eval pyrolysis, total organic carbon analysis, and well logs were used to map the present-day thickness, organic quantity (TOC), quality (hydrogen index, HI...
Authors
K. E. Peters, K. J. Bird, M.A. Keller, P. G. Lillis, L. B. Magoon
Overview of the Alaska North Slope posters presented at the American Association of Petroleum Geologists (AAPG) annual meeting in Salt Lake City, Utah, USA during May 11-14, 2003: a status report of the U. S. Geological Survey Alaska petroleum studies Overview of the Alaska North Slope posters presented at the American Association of Petroleum Geologists (AAPG) annual meeting in Salt Lake City, Utah, USA during May 11-14, 2003: a status report of the U. S. Geological Survey Alaska petroleum studies
A poster prepared for the Annual Meeting of the American Association of Petroleum Geologists in Salt Lake City, Utah, May 11-14, 2003.
Authors
K. J. Bird