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: 1349
Alaska resource data files: Fairbanks quadrangle Alaska resource data files: Fairbanks quadrangle
No abstract available.
Authors
Curtis J. Freeman, Janet Schaefer
Preliminary mineralogical characterization of weathered and less-weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections C and D, Dry Valley, Caribou County, Idaho Preliminary mineralogical characterization of weathered and less-weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections C and D, Dry Valley, Caribou County, Idaho
This study used powder X-ray diffraction, with Rietveld quantification software to quantify and characterize the mineralogy of the 83 samples collected from two stratigraphic sections measured by the U.S. Geological Survey at the Dry Valley mine in the Meade Peak Member of the Phosphoria Formation. Analyses show extensive variability of carbonate substitution in the fluorapatite...
Authors
Andrew C. Knudsen, Mickey E. Gunter, James R. Herring
Geologic map of the Steele Peak 7.5' quadrangle, Riverside County, California Geologic map of the Steele Peak 7.5' quadrangle, Riverside County, California
Open-File Report 01-449 contains a digital geologic map database of the Steele Peak 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, and containing a Correlation of Map...
Authors
Douglas M. Morton, Rachel M. Alvarez, Van M. Diep
Map showing plutons and accreted terranes of the Sierra Nevada, California, with a tabulation of U/Pb isotopic ages Map showing plutons and accreted terranes of the Sierra Nevada, California, with a tabulation of U/Pb isotopic ages
No abstract available.
Authors
William P. Irwin, Joseph L. Wooden
By
Petrography and physical properties of selected rock types associated with the Hayward Fault, California Petrography and physical properties of selected rock types associated with the Hayward Fault, California
This report provides brief petrographic descriptions of rock samples collected from the vicinity of the Hayward Fault, Northern California. Two groups of rock samples are represented here: A set of six samples that were used for laboratory measurements of P- and S-wave velocity , strength, density, and porosity. This group was examined using standard petrographic microscope, scanning...
Authors
Diane E. Moore, David A. Ponce
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
Eagle Mountain Mine: Geology of the former Kaiser Steel Operation in Riverside County, California Eagle Mountain Mine: Geology of the former Kaiser Steel Operation in Riverside County, California
This investigation of the Eagle Mountain Mine area, though cursory, revealed new structural, alteration, and stratigraphic relations. Eagle Mountain ores were previously an important source of iron to the western U. S. Ore (where fresh) is magnetite-pyrite rock forming two stratabound horizons virtually continuous for 11 km. Gneissic basement rocks are overlain by two sedimentary units...
Authors
Eric R. Force
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
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
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
Mineral resources: Out of the ground... into our daily lives Mineral resources: Out of the ground... into our daily lives
Minerals and mineral resources are a part of our everyday lives. This poster depicts a home and shows the different mineral(s) and mineral materials used to make the various products found in the average home.
Authors
Dave Frank, Judy Weathers, John Galloway