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: 2019
Mineral resources of the Gibraltar Mountain and Planet Peak Wilderness Study Areas, La Paz County, Arizona Mineral resources of the Gibraltar Mountain and Planet Peak Wilderness Study Areas, La Paz County, Arizona
No abstract available.
Authors
R. G. Eppinger, J.A. Peterson, H. R. Blank, K.E. Livo, D. H. Knepper, J. A. Pitkin, J.E. Spencer, S. J. Reynolds, M. J. Grubensky, T.J. Kreidle, D.C. Scott
Isotopic geochemistry of a mid-Proterozoic evaporite basin: Balmat, New York Isotopic geochemistry of a mid-Proterozoic evaporite basin: Balmat, New York
No abstract available.
Authors
Joseph F. Whelan, Robert O. Rye, W. De Lorraine, Hiroshi Ohmoto
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
Epithermal gold-siver deposits in the western United States: time-space products of evolving plutonic, volcanic and tectonic environments Epithermal gold-siver deposits in the western United States: time-space products of evolving plutonic, volcanic and tectonic environments
The western United States has been the locus of considerable subaerial volcanic and plutonic igneous activity since the mid-Mesozoic. After the destruction of the Jurassic-Cretaceous magmatic arc-trench system, subduction was re-established in the Late Mesozoic with low-angle underthrusting of the oceanic plate beneath western North America. This resulted in crustal shortening during the...
Authors
Byron R. Berger, Harold F. Bonham
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
High-resolution reflectance spectra of Mars in the 2.3-μm region: evidence for the mineral scapolite High-resolution reflectance spectra of Mars in the 2.3-μm region: evidence for the mineral scapolite
patially resolved reflectance spectra of Mars in the 2.2- to 2.4-μm spectral region were obtained in August 1988 using the NASA 3-m Infrared Telescope Facility. The spectra show weak absorption features due to Martian atmospheric carbon monoxide and a surface mineral. Both CO and the mineral absorptions are composed of overlapping narrow features, but in many locations, such as Hellas...
Authors
Roger N. Clark, Gregg A. Swayze, Robert B. Singer, James B. Pollack
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
REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part C - Executable code, source code, and text images REMAPP - PC computer file : remote sensing image processing software for MS - DOS personal computers, Part C - Executable code, source code, and text images
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
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
Mineral resources of the Gibraltar Mountain and Planet Peak Wilderness Study Areas, La Paz County, Arizona Mineral resources of the Gibraltar Mountain and Planet Peak Wilderness Study Areas, La Paz County, Arizona
No abstract available.
Authors
Robert G. Eppinger, Jocelyn A. Peterson, H. Richard Blank, K. Eric Livo, Daniel H. Knepper, James A. Pitkin, Jon E. Spencer, Stephen J. Reynolds, Michael J. Grubensky, Terry J. Kreidler, David C. Scott