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
Geochemistry of selected mercury mine-tailings in the Parkfield Mercury District, California Geochemistry of selected mercury mine-tailings in the Parkfield Mercury District, California
The Parkfield mercury district is located in the southern part of the California Coast Range mercury mineral belt and contains three silica-carbonate-type mercury deposits that have had significant mercury production. Mercury was first produced in the district in 1873, but the main period of production occurred from 1915-1922. Total production from the district is about 5,000 flasks of...
Authors
James J. Rytuba, Boris B. Kotlyar, Gregg Wilkerson, Jerry Olson
Reconnaissance geologic map of the Dixonville 7.5' quadrangle, Oregon Reconnaissance geologic map of the Dixonville 7.5' quadrangle, Oregon
The Dixonville 7.5 minute quadrangle is situated near the edge of two major geologic and tectonic provinces the northernmost Klamath Mountains and the southeastern part of the Oregon Coast Ranges (Figure 1). Rocks of the Klamath Mountains province that lie within the study area include ultramafic, mafic, intermediate and siliceous igneous types (Diller, 1898, Ramp, 1972, Ryberg, 1984)...
Authors
Angela S. Jayko, Ray E. Wells, R. W. Givler, J.S. Fenton, M. Sinor
Use of Landsat MSS and TM imagery to improve reconnaissance geologic mapping in the Ruby quadrangle, west-central Alaska: A section in Geological studies in Alaska by the U.S. Geological Survey, 1999 Use of Landsat MSS and TM imagery to improve reconnaissance geologic mapping in the Ruby quadrangle, west-central Alaska: A section in Geological studies in Alaska by the U.S. Geological Survey, 1999
By using Multispectral Scanner (MSS) and Thematic Mapper (TM) satellite images, the spatial relation of units JMtu (mafic, ultramafic, and sedimentary rocks, undivided) and PzZrqs (pelitic and quartzitic schist) of Wilson and others (1998) from the northeastern portion of the Ruby 1:250,000-scale quadrangle geologic map was further defined. The MSS image was first analyzed using spectral
Authors
Keith A. Labay, Frederic H. Wilson, Kuuipo A. Burleigh
Calculating depths to shallow magnetic sources using aeromagnetic data from the Tucson Basin Calculating depths to shallow magnetic sources using aeromagnetic data from the Tucson Basin
Using gridded high-resolution aeromagnetic data, the performance of several automated 3-D depth-to-source methods was evaluated over shallow control sources based on how close their depth estimates came to the actual depths to the tops of the sources. For all three control sources, only the simple analytic signal method, the local wavenumber method applied to the vertical integral of the...
Authors
Daniel W. Casto
Alaska resource data file: Stepovak Bay quadrangle Alaska resource data file: Stepovak Bay quadrangle
No abstract available.
Authors
S. H. Pilcher
Alaska resource data file: Bethel quadrangle Alaska resource data file: Bethel quadrangle
No abstract available.
Authors
Travis Hudson
Alaska resource data file: Taylor Mountains quadrangle Alaska resource data file: Taylor Mountains quadrangle
No abstract available.
Authors
Travis Hudson
Alaska resource data file: Dillingham quadrangle Alaska resource data file: Dillingham quadrangle
No abstract available.
Authors
Travis Hudson
Alaska resource data file: Skagway quadrangle Alaska resource data file: Skagway quadrangle
No abstract available.
Authors
Thomas C. Crafford
Geologic map of the Lake Mathews 7.5' quadrangle, Riverside County, California Geologic map of the Lake Mathews 7.5' quadrangle, Riverside County, California
Open-File Report 01-479 contains a digital geologic map database of the Lake Mathews 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A PostScript file to plot the geologic map on a topographic base, containing a Correlation of Map...
Authors
Douglas M. Morton, F. Harold Weber
Geologic map of the Riverside East 7.5' quadrangle, Riverside County, California Geologic map of the Riverside East 7.5' quadrangle, Riverside County, California
Open-File Report 01-452 contains a digital geologic map database of the Riverside East 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO Environmental Systems Research Institute (http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A Postscript file to plot the geologic map on a topographic base, containing a Correlation of Map...
Authors
Douglas M. Morton, Brett F. Cox
Geologic map of the Sunnymead 7.5' quadrangle, Riverside County, California Geologic map of the Sunnymead 7.5' quadrangle, Riverside County, California
Open-File Report 01-450 contains a digital geologic map database of the Sunnymead 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http:/www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A Postscript file to plot the geologic map on a topographic base, containing a Correlation of Map Units...
Authors
Douglas M. Morton, Jonathan C. Matti