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: 1428
Alaska resource data file: Kodiak quadrangle Alaska resource data file: Kodiak quadrangle
No abstract available.
Authors
S. H. Pilcher
Alaska resource data file: Karluk quadrangle Alaska resource data file: Karluk quadrangle
No abstract available.
Authors
S. H. Pilcher
Alaska resource data file: Afognak quadrangle Alaska resource data file: Afognak quadrangle
No abstract available.
Authors
S. H. Pilcher
Geologic map of the East of Grotto Hills quadrangle, California: A digital database Geologic map of the East of Grotto Hills quadrangle, California: A digital database
The East of Grotto Hills 1:24,000-scale quadrangle of California lies west of the Colorado River about 30 km southwest of Searchlight, Nevada, near the boundary between the northern and southern parts of the Basin and Range Province. The quadrangle includes the eastern margin of Lanfair Valley, the southernmost part of the Castle Mountains, and part of the northwest Piute Range. The...
Authors
Jane E. Nielson, David R. Bedford
Alaska resource data file: Yakutat quadrangle Alaska resource data file: Yakutat quadrangle
No abstract available.
Authors
C. C. Hawley
Examining risk in mineral exploration 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...
Authors
Donald A. Singer, Ryoichi Kouda
An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona 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...
Authors
Mark W. Bultman, Mark E. Gettings, Jeff Wynn
Foreshocks and aftershocks of the great 1857 California earthquake Foreshocks and aftershocks of the great 1857 California earthquake
The San Andreas fault is the longest fault in California and one of the longest strike-slip faults anywhere in the world, yet we know little about many aspects of its behavior before, during, and after large earthquakes. We conducted a study to locate and to estimate magnitudes for the largest foreshocks and aftershocks of the 1857 M 7.9 Fort Tejon earthquake on the central and southern...
Authors
A.J. Meltzner, D.J. Wald
How useful is landslide hazard information? Lessons learned in the San Francisco Bay region How useful is landslide hazard information? Lessons learned in the San Francisco Bay region
Landslides, worldwide and in the United States, are arguably the most costly natural hazard. Substantial landslide information is available, but much of it remains underutilized, as a disconnect exists among geologists, decision makers, and the public. The lack of a national landslide insurance policy exacerbates this situation and promotes litigation as the principal recourse for...
Authors
D. G. Howell, D.W. Ramsey, E. E. Brabb
Alaska resource data file: Big Delta quadrangle Alaska resource data file: Big Delta quadrangle
No abstract available.
Authors
Cameron Rombach
Alaska resource data file: Tanacross quadrangle Alaska resource data file: Tanacross quadrangle
No abstract available.
Authors
Cheryl Cameron
Alaska resource data file: McGrath quadrangle Alaska resource data file: McGrath quadrangle
The unnamed occurrence was investigated by the reporter in 1978 during a 1:63,360 scale geologic mapping effort for the Alaska Division of Geological and Geophysical Surveys in the McGrath quadrangle (Bundtzen and Laird, 1983). Two grab samples from the mineralized zone contained up to 222 ppm copper, 0.6 grams/tonne silver, and 100 ppm lead.
Authors
Thomas K. Bundtzen