Publications
Here you will find publications, reports and articles produced by geology, energy, and mineral scientists. For a comprehensive listing of all USGS publications, click the button below.
Filter Total Items: 1429
Geologic constraints on the upper limits of reserve growth Geologic constraints on the upper limits of reserve growth
For many oil and gas fields, estimates of ultimate recovery (the sum of cumulative production plus estimated reserves) tend to increase from one year to the next, and the gain is called reserve growth. Forecasts of reserve growth by the U.S. Geological Survey rely on statistical analyses of historical records of oil and gas production and estimated reserves. The preproposal in this Open...
Authors
Richard G. Stanley
Preliminary compilation of data for selected oil test wells in Northern California Preliminary compilation of data for selected oil test wells in Northern California
Oil test wells can provide information on the depth, age, inclination, porosity, permeability, density, faulting, folding, and organic content of geologic formations mapped at the surface, or on units not recognized in surface outcrops. Formation density, as expressed in sonic and density logs commonly obtained when wells are drilled, has become increasingly important in making a crustal...
Authors
Earl E. Brabb, Charles L. Powell, Thomas M. Brocher
Geologic map and database of the Roseburg 30' x 60' quadrangle, Douglas and Coos Counties, Oregon Geologic map and database of the Roseburg 30' x 60' quadrangle, Douglas and Coos Counties, Oregon
The Roseburg 30' x 60' Quadrangle covers the southeastern margin of the Oregon Coast Range and its tectonic boundary with Mesozoic terranes of the Klamath Mountains (see figures 1 and 2 in pamphlet, also shown on map sheet). The geologic framework of the Roseburg area was established by the pioneering work of Diller (1898), Wells and Peck, (1961) and Ewart Baldwin (1974) and his students...
Authors
Ray E. Wells, A. S. Jayko, A. R. Niem, G. Black, T. Wiley, E. Baldwin, K. M. Molenaar, K.L. Wheeler, C. B. DuRoss, R. W. Givler
The erosion of the Grand Canyon The erosion of the Grand Canyon
No abstract available.
Authors
George Billingsley
Reconnaissance geology north of the Hoholitna River, Taylor Mountains D-1 1:63,360-scale quadrangle, southwestern Alaska: A section in Geological studies in Alaska by the U.S. Geological Survey, 1999 Reconnaissance geology north of the Hoholitna River, Taylor Mountains D-1 1:63,360-scale quadrangle, southwestern Alaska: A section in Geological studies in Alaska by the U.S. Geological Survey, 1999
The lower Paleozoic (Silurian and Ordovician) carbonate stratal succession is divided into six unnamed stratigraphic units in the northern part of the Taylor Mountains D-1 1:63,360-scale quadrangle of southwestern Alaska. Several of these units have previously been recognized in the McGrath and Medfra quadrangles to the northeast in strata of the Nixon Fork subterrane of the Farewell...
Authors
Robert B. Blodgett, Frederic H. Wilson
Relationship of faults in basin sediments to the gravity and magnetic expression of their underlying fault systems Relationship of faults in basin sediments to the gravity and magnetic expression of their underlying fault systems
Gravity and magnetic surveys were performed along the western flanks of the Santa Rita Mountain range located in southeastern Arizona to develop an understanding of the relationship between surface fault scarps within the basin fill sediments and theirgeophysical response of the faults at depth within the bedrock. Data were acquired for three profiles, one of them along the northern...
Authors
Christopher A. Baldyga
Geologic map of the Tucson and Nogales quadrangles (Arizona, scale 1:250,000): A digital database Geologic map of the Tucson and Nogales quadrangles (Arizona, scale 1:250,000): A digital database
The geologic map of the Tucson-Nogales 1:250,000 scale quadrangle (Peterson and others, 1990) was digitized by U.S. Geological Survey staff and University of Arizona contractors at the Southwest Field Office, Tucson, Arizona, in 2000 for input into a geographic information system (GIS). The database was created for use as a basemap in a decision support system designed by the National...
Authors
J.A. Peterson, J. R. Berquist, S. J. Reynolds, S. S. Page-Nedell, Gustav P. Oland, Douglas M. Hirschberg
Alaska resource data files: Fairbanks quadrangle Alaska resource data files: Fairbanks quadrangle
No abstract available.
Authors
Curtis J. Freeman, Janet Schaefer
Alaska resource data file: Goodnews Bay quadrangle Alaska resource data file: Goodnews Bay quadrangle
No abstract available.
Authors
Travis Hudson
Alaska resource data files: Hagemeister Island quadrangle Alaska resource data files: Hagemeister Island quadrangle
No abstract available.
Authors
Travis Hudson
Alaska resource data file: Cordova quadrangle Alaska resource data file: Cordova quadrangle
No abstract available.
Authors
S.W. Nelson
Alaska resource data file: Healy quadrangle Alaska resource data file: Healy quadrangle
No abstract available.
Authors
D. L. Stevens