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Browse recent USGS publications related to energy resources. 

Filter Total Items: 2833

Review of paleomagnetic data from the Klamath Mountains, Blue Mountains, and Sierra Nevada; Implications for paleogeographic reconstructions Review of paleomagnetic data from the Klamath Mountains, Blue Mountains, and Sierra Nevada; Implications for paleogeographic reconstructions

Paleomagnetic studies of the Klamath Mountains, Blue Mountains, Sierra Nevada, and northwestern Nevada pertain mostly to Jurassic and Cretaceous rocks, but some data also are available for Permian and Triassic rocks of the region. Large vertical-axis rotations are indicated for rocks in many of the terranes, but few studies show statistically significant latitudinal displacements. The...
Authors
Edward A. Mankinen, William P. Irwin

Evolution of the Tertiary La Honda basin, central California Evolution of the Tertiary La Honda basin, central California

Tertiary strata of the La Honda basin are exposed in the Santa Cruz Mountains along the central California coast south of San Francisco. The basin fill has a composite thickness of more than 14,500 m and consists of sedimentary and volcanic rocks that in places rest on granitic basement rocks of the Salinia terrane. Paleogene strata are mainly turbidite sandstone and hemipelagic mudstone...
Authors
Richard G. Stanley

Occurrence and geochemistry of natural gases, Piceance Basin, northwest Colorado Occurrence and geochemistry of natural gases, Piceance Basin, northwest Colorado

The Piceance basin is a hydrocarbon-rich province that has natural gas production from reservoirs ranging in age from Late Jurassic to Eocene and large undeveloped resources of natural gas in coal beds and tight sandstone reservoirs of Cretaceous age. Gases from all producing intervals are of predominantly thermal origin and become isotopically heavier (delta isotope{13}C[1]: -51.3 to...
Authors
Ronald C. Johnson, Dudley D. Rice

Sedimentology and petroleum occurrence, Schoolhouse Member, Maroon Formation (Lower Permian), northwestern Colorado Sedimentology and petroleum occurrence, Schoolhouse Member, Maroon Formation (Lower Permian), northwestern Colorado

The Lower Permian Schoolhouse Member of the Maroon Formation forms a partly exhumed petroleum reservoir in the Eagle basin of northwestern Colorado. The Schoolhouse consists mainly of yellowish gray to gray, low-angle to parallel bedded, very fine to fine-grained sandstone of eolian sand-sheet origin; interbedded fluvial deposits are present in most sections. Geological and geochemical...
Authors
Samuel Y. Johnson, Christopher J. Schenk, D. L. Anders, Michele L. Tuttle

Economic implications of petroleum field size distributions Economic implications of petroleum field size distributions

The unprecedented natural gas price increases in the late 1970's and early 1980's allowed a glimpse of part of the in-situ distribution of natural gas fields that had been hidden by economic truncation. Analysis of those discoveries shows the distribution to be characterized by progressively larger numbers of fields as size category declines. This paper demonstrates the effects of...
Authors
Emil D. Attanasi, Lawrence J. Drew

Mineral resources of the Mount Pennell Wilderness Study Area, Garfield County, Utah Mineral resources of the Mount Pennell Wilderness Study Area, Garfield County, Utah

No abstract available.
Authors
Russell F. Dubiel, C. S. Bromfield, S. E. Church, W. M. Kemp, M. J. Larson, Fred Peterson, C. T. Pierson, D. D. Gese
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