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
Geologic map of the Scotts Mills, Silverton, and Stayton Northeast 7.5 minute quadrangles, Northwest Oregon: A digital database Geologic map of the Scotts Mills, Silverton, and Stayton Northeast 7.5 minute quadrangles, Northwest Oregon: A digital database
The Scotts Mills, Silverton, and Stayton NE 7.5 minute quadrangles are situated along the eastern margin of the Willamette Valley and adjacent lower foothills (Waldo and Silverton Hills) of the Cascade Range (Fig. 1). The terrain within this area is of low to moderate relief, ranging from 100 to more than 1000 ft above sea level. This area is largely rural, with most of the valley floor...
Authors
Terry Tolan, Marvin Beeson, Karen L. Wheeler
An evaluation of sand and gravel resources in and near the Prescott National Forest in the Verde Valley, Arizona, with a section on evaluation of sand and gravel resources using selected engineering variables An evaluation of sand and gravel resources in and near the Prescott National Forest in the Verde Valley, Arizona, with a section on evaluation of sand and gravel resources using selected engineering variables
This study was based on available published literature. Although no field investigation was conducted in the Prescott National Forest to the west of the Verde River, a field investigation was conducted in the summer of 1994 by this author on the Coconino National Forest, to the east of the Verde River, where units of surficial materials of the same age and similar character are found...
Authors
Leslie J. Cox, James D. Bliss, Robert J. Miller
Alaska resource data file: Trinity Islands quadrangle Alaska resource data file: Trinity Islands 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: Kodiak quadrangle Alaska resource data file: Kodiak 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 Hart Peak quadrangle, California and Nevada: A digital database Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database
The Hart Peak 1:24,000-scale quadrangle is located about 12 km southwest of Searchlight, Nevada, comprehending the eastern part of the Castle Peaks, California, and most of the Castle Mountains and the northwestern part of the Piute Range, in California and Nevada. The Castle Peaks area constitutes the northeasternmost part of the northeast-trending New York Mountains. The Castle...
Authors
Jane E. Nielson, Ryan D. Turner, David R. Bedford
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
Physiographic rim of the Grand Canyon, Arizona: A digital database Physiographic rim of the Grand Canyon, Arizona: A digital database
This Open-File report is a digital physiographic map database. This pamphlet serves to introduce and describe the digital data. There is no paper map included in the Open-File report. The report does include, however, PostScript and PDF format plot files, each containing an image of the map. For those interested in a paper plot of information contained in the database or in obtaining the
Authors
George H. Billingsley, Haydee M. Hampton
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