Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2354
An earth-system science toolkit for environmentally-friendly mineral-resource development
No abstract available.
Authors
Geoffrey S. Plumlee, M.J. Logsdon
Geologic controls on the composition of natural waters and mine waters draining diverse mineral-deposit types
No abstract available.
Authors
Geoffrey S. Plumlee, K. S. Smith, M. R. Montour, W. H. Ficklin, E. L. Mosier
Examining risk in mineral exploration
Successful mineral exploration strategy requires identification of some of the risk sources and considering them in the decision-making process so that controllable risk can be reduced. Risk is defined as chance of failure or loss. Exploration is an economic activity involving risk and uncertainty, so risk also must be defined in an economic context. Risk reduction can be addressed in three fundam
Authors
Donald A. Singer, Ryoichi Kouda
An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona
In March of 1997, an airborne electromagnetic (AEM) survey of the Fort Huachuca Military Reservation and immediate surrounds was conducted. This survey was sponsored by the U.S. Army and contracted through the Geologic Division of the U.S. Geological Survey (USGS). Data were gathered by Geoterrex-Dighem Ltd. of Ottawa, Canada. The survey aircraft is surrounded by a coil through which a large curre
Authors
Mark W. Bultman, Mark E. Gettings, Jeff Wynn
Paleozoic and Mesozoic rocks of Stikinia exposed in northwestern British Columbia: Implications for correlations in the northern Cordillera: Discussion and reply
No abstract available.
Authors
S.T. Johnston, M.G. Mihalynuk, David A. Brew, Craig J. R. Hart, Philippe Erdmer, G.E. Gehrels, Lisel Currie, R.R. Parrish
Structural and kinematic evolution of the Yukon-Tanana upland tectonites, east-central Alaska: A record of late Paleozoic to Mesozoic crustal assembly: Discussion and Reply
No abstract available.
Authors
M.G. Mihalynuk, JoAnne L. Nelson, Donald Murphy, David A. Brew, Philippe Erdmer, V. L. Hansen, D.H. Oliver
Physical, chemical, and isotopic data for samples from the Anderson Springs area, Lake County, California, 1998-1999
Anderson Springs is located about 90 miles (145 kilometers) north of San Francisco, California, in the southwestern part of Lake County. The area was first developed in the late 1800s as a health resort, which was active until the 1930s. In the rugged hills to the south of the resort were four small mercury mines of the eastern Mayacmas quicksilver district. About 1,260 flasks of mercury were prod
Authors
C. J. Janik, F. Goff, M. L. Sorey, J. J. Rytuba, D. Counce, E.M. Colvard, M. Huebner, L. D. White, A. Foster
The Silent Canyon caldera complex — A three-dimensional model based on drill-hole stratigraphy and gravity inversion
The structural framework of Pahute Mesa, Nevada, is dominated by the Silent Canyon caldera complex, a buried, multiple collapse caldera complex. Using the boundary surface between low density Tertiary volcanogenic rocks and denser granitic and weakly metamorphosed sedimentary rocks (basement) as the outer fault surfaces for the modeled collapse caldera complex, it is postulated that the caldera co
Authors
Edwin H. McKee, Thomas G. Hildenbrand, Megan L. Anderson, Peter D. Rowley, David A. Sawyer
Digital mining claim density map for federal lands in Idaho: 1996
This report describes a digital map generated by the U.S. Geological Survey (USGS) to provide digital spatial mining claim density information for federal lands in Idaho as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological, economic, and social systems. There is no paper map included in this Open-File r
Authors
Paul C. Hyndman, Harry W. Campbell
Digital mining claim density map for federal lands in Wyoming: 1996
This report describes a digital map generated by the U.S. Geological Survey (USGS) to provide digital spatial mining claim density information for federal lands in Wyoming as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological, economic, and social systems. There is no paper map included in this Open-File
Authors
Paul C. Hyndman, Harry W. Campbell
Digital mining claim density map for federal lands in Nevada: 1996
This report describes a digital map generated by the U.S. Geological Survey (USGS) to provide digital spatial mining claim density information for federal lands in Nevada as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological, economic, and social systems. There is no paper map included in this Open-File
Authors
Paul C. Hyndman, Harry W. Campbell