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: 1404
Geologic map of central (interior) Alaska Geologic map of central (interior) Alaska
Introduction: This map and associated digital databases are the result of a compilation and reinterpretation of published and unpublished 1:250,000- and limited 1:125,000- and 1:63,360-scale mapping. The map area covers approximately 416,000 sq km (134,000 sq mi) and encompasses 25 1:250,000-scale quadrangles in central Alaska. The compilation was done as part of the U.S. Geological...
Authors
Frederic H. Wilson, James H. Dover, Dwight Bradley, Florence R. Weber, Thomas K. Bundtzen, Peter J. Haeussler
Alaska resource data file: Circle quadrangle Alaska resource data file: Circle quadrangle
No abstract available.
Authors
C. J. Freeman, Janet Schaefer
Digital mine claim density map for Federal lands in Montana, 1996 Digital mine claim density map for Federal lands in Montana, 1996
This report describes a digital map and data files generated by the U.S. Geological Survey (USGS) to provide digital spatial mining claim information for Federal lands in Montana as of March, 1997. Statewide, 159,704 claims had been recorded with the Bureau of Land Management since 1975. Of those claims, 21,055 (13%) are still actively held while 138,649 (87%) are closed and are no...
Authors
Harry W. Campbell, Paul C. Hyndman
MORPH-I (Ver 1.0) a software package for the analysis of scanning electron micrograph (binary formatted) images for the assessment of the fractal dimension of enclosed pore surfaces MORPH-I (Ver 1.0) a software package for the analysis of scanning electron micrograph (binary formatted) images for the assessment of the fractal dimension of enclosed pore surfaces
MORPH-I is a set of C-language computer programs for the IBM PC and compatible minicomputers. The programs in MORPH-I are used for the fractal analysis of scanning electron microscope and electron microprobe images of pore profiles exposed in cross-section. The program isolates and traces the cross-sectional profiles of exposed pores and computes the Richardson fractal dimension for each...
Authors
Victor G. Mossotti, A. Raouf Eldeeb, Robert Oscarson
Potential mineral resources, Payette National Forest, Idaho: Description and probabilistic estimation Potential mineral resources, Payette National Forest, Idaho: Description and probabilistic estimation
The Payette National Forest (PNF), in west-central Idaho, is geologically diverse and contains a wide variety of mineral resources. Mineral deposit types are grouped into locatable, leasable, and salable categories. The PNF has substantial past production and identified resources of locatable commodities, including gold, silver, copper, zinc, tungsten, antimony, mercury, and opal. Minor...
Authors
Arthur A. Bookstrom, Bruce R. Johnson, Theresa M. Cookro, Karen Lund, Kenneth C. Watts, Harley D. King, Merlin D. Kleinkopf, James A. Pitkin, J. David Sanchez, J. Douglas Causey
Geology of Palo Alto 30 x 60 minute quadrangle, California: A digital database Geology of Palo Alto 30 x 60 minute quadrangle, California: A digital database
This map database represents the integration of previously published and unpublished maps by several workers (see Sources of Data index map on Sheet 2 and the corresponding table below) and new geologic mapping and field checking by the authors with the previously published geologic map of San Mateo County (Brabb and Pampeyan, 1983) and Santa Cruz County (Brabb, 1989, Brabb and others...
Authors
Earl E. Brabb, R. W. Graymer, David Lawrence Jones
Alaska resource data file: Petersburg quadrangle Alaska resource data file: Petersburg quadrangle
No abstract available.
Authors
D. J. Grybeck, Henry C. Berg
Corrections to "Estimating earthquake location and magnitude from seismic intensity data" Corrections to "Estimating earthquake location and magnitude from seismic intensity data"
The confidence parameters in Table 5 and Figures 7 -12 in Bakun and Wentworth (1997) were calculated using the site corrections for MI(4) rather than Bakun and Wentworth's (1997) preferred relation MI(3). The conclusions of Bakun and Wentworth (1997) are not changed by these corrections. The corrected Table 5 and Figures are in this report and at http://quake.wr.usgs.gov/~bakun/.
Authors
W. H. Bakun, C. M. Wentworth
Rotational and accretionary evolution of the Klamath Mountains, California and Oregon, from Devonian to present time Rotational and accretionary evolution of the Klamath Mountains, California and Oregon, from Devonian to present time
The purpose of this report is to show graphically how the Klamath Mountains grew from a relatively small nucleus in Early Devonian time to its present size while rotating clockwise approximately 110°. This growth occurred by the addition of large tectonic slices of oceanic lithosphere, volcanic arcs, and melange during a sequence of accretionary episodes. The Klamath Mountains province...
Authors
William P. Irwin, Edward A. Mankinen
Alaska resource data file: Lake Clark quadrangle Alaska resource data file: Lake Clark quadrangle
No abstract available.
Authors
Damon P. Bickerstaff
Alaska resource data file: Bradfield Canal quadrangle Alaska resource data file: Bradfield Canal quadrangle
No abstract available.
Authors
Henry C. Berg
Alaska resource date file: Talkeetna Mountains quadrangle Alaska resource date file: Talkeetna Mountains quadrangle
No abstract available.
Authors
J.R. Riehle