Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2354
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
A simplified economic filter for open-pit mining and heap-leach recovery of copper in the United States
Determining the economic viability of mineral deposits of various sizes and grades is a critical task in all phases of mineral supply, from land-use management to mine development. This study evaluates two simple tools for estimating the economic viability of porphyry copper deposits mined by open-pit, heap-leach methods when only limited information on these deposits is available. These two metho
Authors
Keith R. Long, Donald A. Singer
Publications of the Western Earth Surface Processes Team 2000
The Western Earth Surface Processes Team (WESP) of the U.S. Geological Survey (USGS) conducts geologic mapping and related topical earth science studies in the western United States. This work is focused on areas where modern geologic maps and associated earth-science data are needed to address key societal and environmental issues such as ground-water quality, potential geologic hazards, and land
Authors
Charles L. Powell, Paul Stone
Geologic map of the Lakeview 7.5' quadrangle, Riverside County, California
This Open-File Report contains a digital geologic map and map database of the Lakeview 7.5' quadrangle, Riverside County, California, that includes:
1. ARC/INFO (Environmental Systems Research Institute) version 7.2.1 double-precision coverages of the various elements of the geologic map
2. A Postscript file to plot the geologic map on a topographic base, and containing a Correlation of Map Unit
Authors
Douglas M. Morton, Jonathan C. Matti
Use of structural geology in exploration for and mining of sedimentary rock-hosted Au deposits
Structural geology is an important component in regional-, district- and orebody-scale exploration and development of sedimentary rock-hosted Au deposits. Identification of timing of important structural events in an ore district allows analysis and classification of fluid conduits and construction of genetic models for ore formation. The most practical uses of structural geology deal with measure
Authors
Stephen G. Peters
A debris avalanche at Forest Falls, San Bernardino County, California, July 11, 1999
This publication consists of the online version of a CD-ROM publication, U.S. Geological Survey Open-File Report 01-146. The data for this publication total 557 MB on the CD-ROM. For speed of transfer, the main PDF document has been compressed (with a subsequent loss of image quality) from 145 to 18.1 MB. The community of Forest Falls, California, is frequently subject to relatively slow moving d
Authors
Douglas M. Morton, Rachel M. Hauser
Geologic map of the Fifteenmile Valley 7.5' quadrangle, San Bernardino County, California
Open-File Report OF 01-132 contains a digital geologic map database of the Fifteenmile Valley 7.5’ quadrangle, San Bernardino County, California that includes:
1. ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map.
2. A PostScript file to plot the geologic map on a topographic base, and containing a Correla
Authors
F. K. Miller, J. C. Matti
Principal facts for gravity data along the Hayward fault and vicinity, San Francisco Bay area, northern California
The U.S. Geological Survey (USGS) established over 940 gravity stations along the Hayward fault and vicinity. The Hayward fault, regarded as one of the most hazardous faults in northern California (Working Group on California Earthquake Probabilities, 1999), extends for about 90 km from Fremont in the southeast to San Pablo Bay in the northwest. The Hayward fault is predominantly a right-lateral s
Authors
David A. Ponce
Assessment of the sand and gravel resources of the Lower Boise River Valley area, Idaho: Part one: Geological framework of the sand and gravel deposits
The USGS has undertaken a first order evaluation of sand & gravel resources in the Lower Boise River Valley in response to rapid urban expansion in the Boise-Nampa-Caldwell corridor in southwest Idaho. The study is intended to provide land-use planners and managers, particularly in the Bureau of Land Management, with a foundation of knowledge that will allow them to anticipate and plan for demand
Authors
James D. Bliss, Phillip R. Moyle
Digital geologic map of the Fawnskin 7.5' quadrangle, San Bernardino County, California
Version 1.1 of this Open-File Report contains a digital geologic map and map database of the Fawnskin 7.5' quadrangle, San Bernardino County, California, that includes:
1. ARC/INFO (Environmental Systems Research Institute) version 7.2.1 double-precision coverages of the various elements of the geologic map
2. A PostScript (.ps) file to plot the geologic map on a topographic base, containing a Co
Authors
F. K. Miller, J. C. Matti, H.J. Brown, R. E. Powell, P. M. Cossette, Gregory Morton
Digital data for construction material sources reported by the Arizona Department of Transportation in 1977 for Maricopa County, Arizona
Material inventories for prospective sources of material for use in building roads and associated structures were prepared by Arizona for several counties including Maricopa County. The inventories provide information about pit locations, materials classification and type, and measures of some characteristics used to determine suitability for aggregate.
The digital data given in this release was
Authors
Douglas M. Hirschberg, G. Stephen Pitts, Henry L. Melcher, James D. Bliss
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). Similar roc
Authors
Angela S. Jayko, Ray E. Wells, R. W. Givler, J.S. Fenton, M. Sinor