Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2354
Long Valley Coring Project, Inyo County, California, 1998, preliminary stratigraphy and images of recovered core
Phase III of the Long Valley Exploratory Well, the Long Valley Coring Project, obtained continuous core between the depths of 7,180 and 9,831 ft (2,188 to 2,996 meters) during the summer of 1998. This report contains a compendium of information designed to facilitate post-drilling research focussed on the study of the core. Included are a preliminary stratigraphic column compiled primarily from fi
Authors
Penelope C. Sackett, Vicki S. McConnell, Angela L. Roach, Susan S. Priest, John H. Sass
Digital geologic map of the Sandpoint 1- by 2-degree quadrangle, Washington, Idaho, and Montana
The geology of the Sandpoint 1:250,000 quadrangle, Washington, Idaho, and Montana was mapped by F.K. Miller, R.F. Burmester, D.M. Miller, and R.E. Powell between 1963 and 1995 onto a scale-stable 1:250,000 topographic map base and subsequently input into an Arc/Info geographic information system (GIS) by P.D. Derkey. The digital geologic map database can be queried in many ways to produce a variet
Authors
F. K. Miller, R. F. Burmester, R. E. Powell, D. M. Miller, P. D. Derkey
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 and low-re
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
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 (Cox, 1995).
Authors
Leslie J. Cox, James D. Bliss, Robert J. Miller
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 PostScrip
Authors
George H. Billingsley, Haydee M. Hampton
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 Mountains straddl
Authors
Jane E. Nielson, Ryan D. Turner, David R. Bedford
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 generally nort
Authors
Jane E. Nielson, David R. Bedford
Late Cenozoic stratigraphy and tephrochronology of the western Black Mountains piedmont, Death Valley, California: Implications for the tectonic development of Death Valley
Geologic mapping combined with the tephrochronology of spatially isolated sedimentary sections along the western Black Mountains piedmont adjacent the Death Valley fault zone (DVFZ) improves the late Cenozoic stratigraphy from relative age to correlated age. Pliocene tephra layers identified in Funeral Formation conglomerates at Artist Drive and Copper Canyon include a “Nomlaki-like” tephra bed (c
Authors
Jeffrey R. Knott, Andrei M. Sarna-Wojcicki, C.E. Meyer, John Tinsley, S. G. Wells, Elmira Wan
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