Publications
Products (journal articles, reports, fact sheets) authored by current and past scientists are listed below. Please check the USGS Pubs Warehouse for other USGS publications.
Filter Total Items: 1913
Modeling the reflectance spectrum of Callisto 0.25 to 4.1μm Modeling the reflectance spectrum of Callisto 0.25 to 4.1μm
The reflectance spectrum of Callisto from 0.2 to 4.1 μm is modeled using a simultaneous intimate plus areal mixture solution of ice and dark material which satisfies absorption band depths and reflectance levels. The model uses the radiative transfer theory based on Hapke's (1981, J. Geophys. Res. 86, 3039–3054) work, optical constants of materials and includes effects of grain size and...
Authors
Wendy M. Calvin, Roger N. Clark
Preliminary velocity and resistivity models of the Loma Prieta Earthquake region Preliminary velocity and resistivity models of the Loma Prieta Earthquake region
A preliminary three-dimensional velocity model of the Loma Prieta epicentral region in the Santa Cruz Mountains of California has been derived using raypaths from aftershocks recorded by the U.S.G.S. seismic network. In addition, a magnetotelluric sounding profile was completed prior to the earthquake and a two-dimensional resistivity model computed. The velocity and resistivity models...
Authors
Donna Eberhart-Phillips, Victor F. Labson, William D. Stanley, Andrew J. Michael, Brian D. Rodriguez
REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part E - Test images disk 2 REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part E - Test images disk 2
No abstract available.
Authors
Keith Eric Livo
Assessment of the mineral resources for the Adel 1 degree by 2 degrees quadrangle, Oregon Assessment of the mineral resources for the Adel 1 degree by 2 degrees quadrangle, Oregon
No abstract available.
Authors
Walter J. Bawiec, Gerda A. Abrams, Carol A. Finn, James A. Pitkin, Jean L. Ryder, Steven M. Smith, Paul K. Theobald, Dean B. Vander Meulen, George W. Walker
U-Pb geochronologic constraints on the origin of a unique monazite- xenotime gneiss, Hudson Highlands, New York U-Pb geochronologic constraints on the origin of a unique monazite- xenotime gneiss, Hudson Highlands, New York
No abstract available.
Authors
John N. Aleinikoff, Richard I. Grauch
Infrared spectra and crystal chemistry of scapolites: implications for Martian mineralogy Infrared spectra and crystal chemistry of scapolites: implications for Martian mineralogy
Near‐infrared and midinfrared spectra of a wide range of scapolite compositions were studied to determine the cause of the 2.36‐μm features that have been correlated with similar features in the near‐IR spectrum of Mars. We attribute the 2.36−μm features to vibrations caused by HCO3− and HSO4− in the anion sites of scapolite. The 2.36‐μm absorption complex consists of four overlapping...
Authors
Gregg A. Swayze, Roger N. Clark
The eruption of Redoubt Volcano, Alaska, December 14, 1989-August 31, 1990 The eruption of Redoubt Volcano, Alaska, December 14, 1989-August 31, 1990
No abstract available.
Authors
Thomas J. Casadevall, Bernard A. Chouet, John N. Davies, Steven A. Estes, Cynthia A. Gardner, Richard P. Hoblitt, John C. Lahr, Richard G. Lahusen, Jon J. Major, Robert G. McGimsey, Thomas P. Miller, Thomas L. Murray, Christina A. Neal, Christopher J. Nye, Robert A. Page, Thomas C. Pierson, John Power, Christopher D. Stephens, Richard B. Waitt
Sedimentology and petroleum occurrence, Schoolhouse Member, Maroon Formation (Lower Permian), northwestern Colorado Sedimentology and petroleum occurrence, Schoolhouse Member, Maroon Formation (Lower Permian), northwestern Colorado
The Lower Permian Schoolhouse Member of the Maroon Formation forms a partly exhumed petroleum reservoir in the Eagle basin of northwestern Colorado. The Schoolhouse consists mainly of yellowish gray to gray, low-angle to parallel bedded, very fine to fine-grained sandstone of eolian sand-sheet origin; interbedded fluvial deposits are present in most sections. Geological and geochemical...
Authors
Samuel Y. Johnson, Christopher J. Schenk, D. L. Anders, Michele L. Tuttle
REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part B - Executable code and text file documentation REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part B - Executable code and text file documentation
No abstract available.
Authors
Keith Eric Livo
REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part D - Test images disk 1 REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part D - Test images disk 1
No abstract available.
Authors
Keith Eric Livo
Mineral Resources of the Mount Nutt Wilderness Study Area, Mohave County, Arizona Mineral Resources of the Mount Nutt Wilderness Study Area, Mohave County, Arizona
The Mount Nutt Wilderness Study Area (AZ-020-024) is located in the Black Mountains about 15 mi west of Kingman, Arizona. At the request of the U.S. Bureau of Land Management, approximately 27,210 acres of the wilderness study area was evaluated for mineral resources (known) and mineral resource potential (undiscovered). In this report, the area studied is referred to as the 'wilderness...
Authors
Floyd Gray, Robert C. Jachens, Robert J. Miller, Robert L. Turner, Eric K. Livo, Daniel H. Knepper, John Mariano, Carl L. Almquist