Publications
Listed below are publication products directly associated with the Geology, Energy & Minerals Science Center:
Filter Total Items: 1257
Preliminary integrated geologic map databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia Preliminary integrated geologic map databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia
The growth in the use of Geographic Information Systems (GIS) has highlighted the need for regional and national digital geologic maps attributed with age and lithology information. Such maps can be conveniently used to generate derivative maps for purposes including mineral-resource assessment, metallogenic studies, tectonic studies, and environmental research. This Open-File Report is...
Authors
Connie L. Dicken, Suzanne W. Nicholson, John D. Horton, Scott A. Kinney, Gregory L. Gunther, Michael P. Foose, Julia A. L. Mueller
Assessment of undiscovered oil and gas resources of the U.S. portion of the Michigan Basin, 2004 Assessment of undiscovered oil and gas resources of the U.S. portion of the Michigan Basin, 2004
No abstract available.
Authors
Christopher S. Swezey, Joseph R. Hatch, Daniel O. Hayba, John E. Repetski, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
Not-so-routine electron probe microanalyses of jarosite Not-so-routine electron probe microanalyses of jarosite
No abstract available.
Authors
Heather Lowers, George A. Desborough, Jane M. Hammarstrom, Gregg A. Swayze, Kathleen S. Smith, Sharon F. Diehl
Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska
No abstract available.
Authors
John L. Mars, Christopher P. Garrity, David W. Houseknecht, Lee Amoroso, Donald C. Meares
Major- and trace-element concentrations in soils from two continental-scale transects of the United States and Canada Major- and trace-element concentrations in soils from two continental-scale transects of the United States and Canada
This report contains major- and trace-element concentration data for soil samples collected from 265 sites along two continental-scale transects in North America. One of the transects extends from northern Manitoba to the United States-Mexico border near El Paso, Tex. and consists of 105 sites. The other transect approximately follows the 38th parallel from the Pacific coast of the...
Authors
David B. Smith, William F. Cannon, Laurel G. Woodruff, Robert G. Garrett, Rodney Klassen, James E. Kilburn, John D. Horton, Harley D. King, Martin B. Goldhaber, Jean M. Morrison
U.S. Geological Survey 2005 oil and gas resource assessment of the central North Slope, Alaska: Play maps and results U.S. Geological Survey 2005 oil and gas resource assessment of the central North Slope, Alaska: Play maps and results
No abstract available.
Authors
Christopher P. Garrity, David W. Houseknecht, Kenneth J. Bird, Christopher J. Potter, Thomas E. Moore, Philip H. Nelson, Christopher J. Schenk
Acid-rock drainage at Skytop, Centre County, Pennsylvania, 2004 Acid-rock drainage at Skytop, Centre County, Pennsylvania, 2004
Recent construction for Interstate Highway 99 (I?99) exposed pyrite and associated Zn-Pb sulfide minerals beneath a >10-m thick gossan to oxidative weathering along a 40-60-m deep roadcut through a 270-m long section of the Ordovician Bald Eagle Formation at Skytop, near State College, Centre County, Pennsylvania. Nearby Zn-Pb deposits hosted in associated sandstone and limestone in...
Authors
Jane M. Hammarstrom, Keith Brady, Charles A. Cravotta
Virginia aeromagnetic and gravity maps and data: A web site for distribution of data Virginia aeromagnetic and gravity maps and data: A web site for distribution of data
No abstract available.
Authors
Stephen L. Snyder
U-Pb zircon ages and Pb isotope geochemistry of gold deposits in the Carolina slate belt of South Carolina U-Pb zircon ages and Pb isotope geochemistry of gold deposits in the Carolina slate belt of South Carolina
Volcanic rocks of the Persimmon Fork Formation host the largest known gold mines of the Carolina slate belt. U-Pb (SHRIMP) zircon ages have been obtained from rocks closely associated with pyrite-enargite-gold deposits at Brewer (quartz-topaz rhyolite breccia from the argillic alteration zone in the Brewer pit and felsic ash-flow tuff from the quartz sericite alteration zone), from the
Authors
Robert A. Ayuso, Joseph L. Wooden, Nora K. Foley, Robert R. Seal, A. Krishna Sinha
Secondary sulfate minerals associated with acid drainage in the eastern US: Recycling of metals and acidity in surficial environments Secondary sulfate minerals associated with acid drainage in the eastern US: Recycling of metals and acidity in surficial environments
Weathering of metal-sulfide minerals produces suites of variably soluble efflorescent sulfate salts at a number of localities in the eastern United States. The salts, which are present on mine wastes, tailings piles, and outcrops, include minerals that incorporate heavy metals in solid solution, primarily the highly soluble members of the melanterite, rozenite, epsomite, halotrichite...
Authors
J. M. Hammarstrom, R.R. Seal, A. L. Meier, J.M. Kornfeld
Geochemistry and jasper beds from the Ordovician Løkken ophiolite, Norway: origin of proximal and distal siliceous exhalites Geochemistry and jasper beds from the Ordovician Løkken ophiolite, Norway: origin of proximal and distal siliceous exhalites
Stratiform beds of jasper (hematitic chert), composed essentially of SiO2 (69–95 wt %) and Fe2O3 (3–25 wt %), can be traced several kilometers along strike in the Ordovician Løkken ophiolite, Norway. These siliceous beds are closely associated with volcanogenic massive sulfide (VMS) deposits and are interpreted as sea-floor gels that were deposited by fallout from hydrothermal plumes in...
Authors
Tor Grenne, John F. Slack