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
Plutons and accretionary episodes of the Klamath Mountains, California and Oregon Plutons and accretionary episodes of the Klamath Mountains, California and Oregon
The Klamath Mountains consist of various accreted terranes and include many plutons that range in composition from gabbro to granodiorite. Some of the plutons (preaccretionary plutons) were parts of terranes before the terranes accreted; others (accretionary plutons) intruded during or after the accretion of their host terrane(s). This report attempts to (1) graphically illustrate how...
Authors
William P. Irwin, Joseph L. Wooden
Digital geologic map of part of the Thompson Falls 1:100,000 quadrangle, Idaho Digital geologic map of part of the Thompson Falls 1:100,000 quadrangle, Idaho
The geology of the Thompson Falls 1:100,000 quadrangle, Idaho was compiled by Reed S. Lewis in 1997 onto a 1:100,000-scale greenline mylar of the topographic base map for input into a geographic information system (GIS). The resulting digital geologic map GIS can be queried in many ways to produce a variety of geologic maps. Digital base map data files (topography, roads, towns, rivers...
Authors
Reed S. Lewis, Pamela D. Derkey
Inversion of gravity data to define the pre-Tertiary surface and regional structures possibly influencing ground-water flow in the Pahute Mesa-Oasis Valley region, Nye County, Nevada Inversion of gravity data to define the pre-Tertiary surface and regional structures possibly influencing ground-water flow in the Pahute Mesa-Oasis Valley region, Nye County, Nevada
A three-dimensional inversion of gravity data from the Pahute Mesa–Oasis Valley region reveals a topographically complex pre-Tertiary basement surface. Beneath Pahute Mesa, the thickness of the Tertiary volcanic deposits may exceed 5 km within the Silent Canyon caldera complex. South of Pahute Mesa in Oasis Valley, basement is shallower ( 1 km) but between this valley and the Timber...
Authors
T.G. Hildenbrand, V.E. Langenheim, E. A. Mankinen, E.H. McKee
Alaska resource data file: Livengood quadrangle Alaska resource data file: Livengood quadrangle
No abstract available.
Authors
C. J. Freeman, Janet Schaefer
Physical, chemical, and isotopic data for samples from the Anderson Springs area, Lake County, California, 1998-1999 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...
Authors
C. J. Janik, F. Goff, M.L. Sorey, J. J. Rytuba, D. Counce, E.M. Colvard, M. Huebner, L. D. White, A. Foster
Digital mining claim density map for federal lands in Idaho: 1996 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...
Authors
Paul C. Hyndman, Harry W. Campbell
Digital mining claim density map for federal lands in California: 1996 Digital mining claim density map for federal lands in California: 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 California 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...
Authors
Paul C. Hyndman, Harry W. Campbell
Preliminary geologic map of the San Jose 30 X 60-minute quadrangle, California: A digital database Preliminary geologic map of the San Jose 30 X 60-minute quadrangle, California: A digital database
No abstract available.
Authors
Carl M. Wentworth, M. Clark Blake, Robert J. McLaughlin, Russell W. Graymer
High-angle faults in the basement of Yucca Flat, Nevada Test Site, Nevada, based on analysis of a constrained gravity inversion surface High-angle faults in the basement of Yucca Flat, Nevada Test Site, Nevada, based on analysis of a constrained gravity inversion surface
Using a model of the topographic subsurface derived from drill hole and gravity inversion analysis of the basement rocks in Yucca Flat, Nevada Test Site (NTS), Nevada, a fault map and digital fault dataset were constructed based on offsets of the basement surface. Because these faults are, in large part, not present at the surface, they are interpreted to be inactive faults, older than...
Authors
Geoffrey A. Phelps, Edwin H. McKee
Character of the middle Nonlithophysal Zone of the Topopah Spring Tuff at Yucca Mountain Character of the middle Nonlithophysal Zone of the Topopah Spring Tuff at Yucca Mountain
No abstract available.
Authors
David C. Buesch, R.W. Spengler
Detailed correlation of lithostratigraphic and borehole geophysical log data for identifying contacts at Yucca Mountain Detailed correlation of lithostratigraphic and borehole geophysical log data for identifying contacts at Yucca Mountain
No abstract available.
Authors
David C. Buesch, R.W. Spengler
Geology and regional correlation of the Cretaceous and Paleogene rocks of the Gualala block, northern California Geology and regional correlation of the Cretaceous and Paleogene rocks of the Gualala block, northern California
No abstract available.
Authors
C. M. Wentworth, D. L. Jones, E. E. Brabb