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: 1319
Alaska resource data file: Ketchikan quadrangle Alaska resource data file: Ketchikan quadrangle
No abstract available.
Authors
H. C. Berg
Structure and metamorphism of the Franciscan Complex, Mt. Hamilton area, Northern California Structure and metamorphism of the Franciscan Complex, Mt. Hamilton area, Northern California
Truncation of metamorphic isograds and fold axes within coherent terranes of Franciscan metagraywacke by intervening zones of melange indicate that the melange is tectonic and formed after the subduction-related metamorphism and folding. These relations are expressed in two terranes of blueschist-facies rocks of the Franciscan Complex in the Mt. Hamilton area, northern California-the...
Authors
M.C. Blake, C. M. Wentworth
Hydrogeology of the unsaturated zone, North Ramp area of the Exploratory Studies Facility, Yucca Mountain, Nevada Hydrogeology of the unsaturated zone, North Ramp area of the Exploratory Studies Facility, Yucca Mountain, Nevada
Yucca Mountain, in southern Nevada, is being investigated by the U.S. Department of Energy as a potential site for a repository for high-level radioactive waste. This report documents the results of surface-based geologic, pneumatic, hydrologic, and geochemical studies conducted during 1992 to 1996 by the U.S. Geological Survey in the vicinity of the North Ramp of the Exploratory Studies...
Authors
Edward M. Kwicklis, Daniel C. Gillies
Preliminary aeromagnetic anomaly map of California Preliminary aeromagnetic anomaly map of California
The magnetization in crustal rocks is the vector sum of induced in minerals by the Earth’s present main field and the remanent magnetization of minerals susceptible to magnetization (chiefly magnetite) (Blakely, 1995). The direction of remanent magnetization acquired during the rock’s history can be highly variable. Crystalline rocks generally contain sufficient magnetic minerals to...
Authors
Carter W. Roberts, Robert C. Jachens
Digital mining claim density map for federal lands in Oregon: 1996 Digital mining claim density map for federal lands in Oregon: 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 Oregon 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 New Mexico: 1996 Digital mining claim density map for federal lands in New Mexico: 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 New Mexico 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
Digital mining claim density map for federal lands in Washington: 1996 Digital mining claim density map for federal lands in Washington: 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 Washington 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
Alaska resource data file: Big Delta quadrangle Alaska resource data file: Big Delta quadrangle
No abstract available.
Authors
Cameron Rombach
Alaska resource data file: Solomon quadrangle Alaska resource data file: Solomon quadrangle
No abstract available.
Authors
Travis Hudson
Geologic datasets for weights-of-evidence analysis in northeast Washington: 2. Mineral databases Geologic datasets for weights-of-evidence analysis in northeast Washington: 2. Mineral databases
Digital mineral databases are necessary to carry out weights-of-evidence modeling of mineral resources for epithermal gold and carbonate-hosted lead-zinc deposits in northeast Washington. This report describes spreadsheet tables consisting of: 1) training sites for epithermal gold, 2) placer gold sites, 3) training sites for carbonate-hosted lead-zinc, and 4) small lead-zinc mines and...
Authors
D. E. Boleneus
Alaska resource data file: Seldovia quadrangle Alaska resource data file: Seldovia quadrangle
No abstract available.
Authors
Jeff Huber
Alaska resource data file: Kenai quadrangle Alaska resource data file: Kenai quadrangle
No abstract available.
Authors
Jeff A. Huber