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Browse recent USGS publications related to energy resources. 

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Norms for bid distributions in sealed tender markets: An approach through simmulation Norms for bid distributions in sealed tender markets: An approach through simmulation

A substantial number of economic transactions occur through competition in which agents participate by submitting sealed bids.
Authors
Emil D. Attanasi, S.R. Johnson

Gravity and magnetic studies of the Geysers-Clear Lake geothermal region, California, USA Gravity and magnetic studies of the Geysers-Clear Lake geothermal region, California, USA

Gravity and magnetic fields in The Geysers-Clear Lake region are interpreted in relation to the known geology and other available geophysical data. New gravity data provide additional detail with the area of geothermal steam production. Computer techniques were used for removal of the regional gravity field, anomaly enhancement, and modeling subsurface structures. The gravity field was...
Authors
William F. Isherwood

Tectonic framework of petroliferous rocks in Alaska: hydrocarbons Tectonic framework of petroliferous rocks in Alaska: hydrocarbons

Alaska, which contains about 28% of the land and continental shelf of the United States, is estimated by the U.S. Geological Survey to contain about one third of the nation's undiscovered oil and about one sixth of its undiscovered natural gas. The Survey estimates that fields discovered in Alaska through 1972 ultimately may produce about 26 billion bbl of oil and 68 Tcf of natural gas...
Authors
Arthur Grantz, C.E. Kirschner

Audio-magnetotelluric methods in reconnaissance geothermal exploration Audio-magnetotelluric methods in reconnaissance geothermal exploration

An audio-magnetotelluric (AMT) system has been developed by the U.S. Geological Survey for low-cost reconnaissance exploration of geothermal regions. This is an electromagnetic sounding technique in which the scalar or Cagniard resistivity is computed at 12 frequencies logarithmically spaced from 7.5 to 18 600 Hz. Our system uses natural source fields except at the two upper frequencies...
Authors
D.B. Hoover, C. L. Long

The area of influence of an exploratory hole The area of influence of an exploratory hole

A method is presented for calculating the area of influence of exploratory drill holes by using the size and shape of resource targets. The solution presented is for elliptical and circular targets, but the method is applicable to any shaped target. The degree to which points have been explored depends upon their distance away from a drill hole and the possible orientations of the target...
Authors
D.A. Singer, L. J. Drew

A geochemical study of oil in metalliferous veins, Idarado Mine, San Juan Mountains, Colorado A geochemical study of oil in metalliferous veins, Idarado Mine, San Juan Mountains, Colorado

A tarry, benzene-soluble material is present in metal-rich veins in the Idarado mine, Ouray County, Colo., in an area not known to have petroleum resources. The material was compared chemically, spectometrically, and chromatographically with oils from four fields in the nearby Paradox basin. Each of these oil fields contains reservoir rocks equivalent to rock units known to extend...
Authors
Peter M. Gerrild
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