Publications
Browse recent USGS publications related to energy resources.
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The ages of the continental, Upper Cretaceous, Fruitland Formation and Kirtland Shale based on a projection of ammonite zones from the Lewis Shale, San Juan Basin, New Mexico and Colorado The ages of the continental, Upper Cretaceous, Fruitland Formation and Kirtland Shale based on a projection of ammonite zones from the Lewis Shale, San Juan Basin, New Mexico and Colorado
The Kirtland Shale or Fruitland Formation directly underlies the Cretaceous-Tertiary boundary throughout most of the San Juan Basin of northwest New Mexico and southwest Colorado. These formations have been known to be Late Cretaceous in age since the early 1900s. Now, with the greatly renewed interest in rocks adjacent to mass extinction boundaries, it is important to place more precise...
Authors
James E. Fassett
Real-time landslide warning during heavy rainfall Real-time landslide warning during heavy rainfall
A real-time system for issuing warnings of landslides during major storms is being developed for the San Francisco Bay region, California. The system is based on empirical and theoretical relations between rainfall and landslide initiation, geologic determination of areas susceptible to landslides, real-time monitoring of a regional network of telemetering rain gages, and National...
Authors
David K. Keefer, R. C. Wilson, R. K. Mark, E. E. Brabb, W. M. Brown, S. D. Ellen, E. L. Harp, G. F. Wieczorek, C.S. Alger, R.S. Zatkin
Possible Late Middle Ordovician organic carbon isotope excursion: Evidence from Ordovician oils and hydrocarbon source rocks, mid-continent and east-central United States Possible Late Middle Ordovician organic carbon isotope excursion: Evidence from Ordovician oils and hydrocarbon source rocks, mid-continent and east-central United States
Oils generated by Middle Ordovician rocks are found throughout the Mid-Continent and east-central regions of the United States. Gas chromatographic characteristics of these oils include a relatively high abundance of n-alkanes with carbon numbers less than 20, a strong predominance of odd-numbered n-alkanes between C10 and C20, and relatively small amounts of branched and cyclic alkanes...
Authors
Joseph R. Hatch, Stephen R. Jacobson, Brian J. Witzke, J. Bruno Risatti, Donald E. Anders, W. Lynn Watney, K. David Newell, April K. Vuletich
Implications of the northwestwardly younger age of the volcanic rocks of west-central California: Alternative Interpretation Implications of the northwestwardly younger age of the volcanic rocks of west-central California: Alternative Interpretation
Fox and others (1985) have made an important contribution to our understanding of iihe evolution of the Mendocino triple junction and the San Andreas transform. They have summarized a large amount of data on the ages and distribution of volcanic centers along the central California coast; their summary clearly shows that the locus of volcanism migrated northwestward along the coast...
Authors
Richard G. Stanley
Field guide and road log: Pennsylvanian and Permian depositional systems and cycles in the Eagle basin, northwestern Colorado Field guide and road log: Pennsylvanian and Permian depositional systems and cycles in the Eagle basin, northwestern Colorado
No abstract available.
Authors
Christopher J. Schenk, S. Y. Johnson, J. A. Karachewski
Marine and nonmarine gas-bearing rocks in Upper Cretaceous Blackhawk and Neslen Formations, eastern Uinta Basin, Utah: Sedimentology, diagenesis, and source rock potential Marine and nonmarine gas-bearing rocks in Upper Cretaceous Blackhawk and Neslen Formations, eastern Uinta Basin, Utah: Sedimentology, diagenesis, and source rock potential
The Upper Cretaceous Blackhawk and Neslen Formations in the eastern Uinta basin contain large amounts of thermogenic gas that was generated from interbedded humic-rich source rocks. The geometry and distribution of hydrocarbon source and reservoir rocks are controlled by depositional environment. The Blackhawk, composed of laterally extensive sandstone and locally interbedded...
Authors
Janet K. Pitman, Karen J. Franczyk, Donald E. Anders
Abstracts of papers presented at the Geographic information systems symposium, June 2-4, 1987, Reston, Virginia Abstracts of papers presented at the Geographic information systems symposium, June 2-4, 1987, Reston, Virginia
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
Statistics of petroleum exploration in the non-Communist world outside the United States and Canada Statistics of petroleum exploration in the non-Communist world outside the United States and Canada
The search for petroleum has expanded to include most countries in the world. From January 1, 1950, through 1980, about 160,000 crew months were spent in geologic and geophysical exploration in a study area that includes all nonCommunist countries outside the United States and Canada. By the end of 1982, almost 27,000 wildcat wells had been drilled in this study area; these and other pre...
Authors
David H. Root, Emil D. Attanasi, Robert M. Turner
Migrated seismic-reflection lines, eastern Aleutian trench Migrated seismic-reflection lines, eastern Aleutian trench
No abstract available.
Authors
John J. Miller, Roland E. von Huene
New evidence on the state of stress of the San Andreas fault system New evidence on the state of stress of the San Andreas fault system
Contemporary in situ tectonic stress indicators along the San Andreas fault system in central California show northeast-directed horizontal compression that is nearly perpendicular to the strike of the fault. Such compression explains recent uplift of the Coast Ranges and the numerous active reverse faults and folds that trend nearly parallel to the San Andreas and that are otherwise...
Authors
Mark D. Zoback, M.L. Zoback, S. Van Mount, J. Suppe, J. P. Eaton, J. H. Healy, D. Oppenheimer, P. Reasenberg, L. Jones, C.B. Raleigh, I.G. Wong, O. Scotti, C. Wentworth