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
Geochemical evolution of a high arsenic, alkaline pit-lake in the Mother Lode Gold District, California Geochemical evolution of a high arsenic, alkaline pit-lake in the Mother Lode Gold District, California
The Harvard orebody at the Jamestown gold mine, located along the Melones fault zone in the southern Mother Lode gold district, California, was mined in an open-pit operation from 1987 to 1994. Dewatering during mining produced a hydrologic cone of depression; recovery toward the premining ground-water configuration produced a monomictic pit lake with alkaline Ca-Mg-HCO3-SO4–type pit...
Authors
Kaye S. Savage, Roger P. Ashley, Dennis K. Bird
Discovery of lake-effect clouds on Titan Discovery of lake-effect clouds on Titan
Images from instruments on Cassini as well as from telescopes on the ground reveal the presence of sporadic small-scale cloud activity in the cold late-winter north polar region of Saturn's large moon Titan. These clouds lie underneath the previously discovered uniform polar cloud attributed to a quiescent ethane cloud at ???40 km and appear confined to the same latitudes as those of the...
Authors
M.E. Brown, E.L. Schaller, H.G. Roe, C. Chen, J. Roberts, R. H. Brown, K. H. Baines, R. N. Clark
Natural low-pH environments unaffected by human activity Natural low-pH environments unaffected by human activity
No abstract available.
Authors
Robert G. Eppinger, Ron Fuge
Character and spatial distribution of OH/H2O on the surface of the moon seen by M3 on chandrayaan-1 Character and spatial distribution of OH/H2O on the surface of the moon seen by M3 on chandrayaan-1
The search for water on the surface of the anhydrous Moon had remained an unfulfilled quest for 40 years. However, the Moon Mineralogy Mapper (M 3) on Chandrayaan-1 has recently detected absorption features near 2.8 to 3.0 micrometers on the surface of the Moon. For silicate bodies, such features are typically attributed to hydroxyl- and/or water-bearing materials. On the Moon, the...
Authors
C.M. Pieters, J.N. Goswami, R. N. Clark, M. Annadurai, J. Boardman, B. Buratti, J. #NAME? Combe, M.D. Dyar, R. Green, J.W. Head, C. Hibbitts, M. Hicks, P. Isaacson, R. Klima, G. Kramer, S. Kumar, E. Livo, S. Lundeen, E. Malaret, T. McCord, J. Mustard, J. Nettles, N. Petro, C. Runyon, M. Staid, J. Sunshine, L.A. Taylor, S. Tompkins, P. Varanasi
Mapping potentialy asbestos-bearing rocks using imaging spectroscopy Mapping potentialy asbestos-bearing rocks using imaging spectroscopy
Rock and soil that may contain naturally occurring asbestos (NOA), a known human carcinogen, were mapped in the Sierra Nevada, California, using the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) to determine if these materials could be uniquely identified with spectroscopy. Such information can be used to prepare or refine maps of areas that may contain minerals that can be...
Authors
G.A. Swayze, R.F. Kokaly, C.T. Higgins, J.P. Clinkenbeard, R. N. Clark, H.A. Lowers, S. J. Sutley
Carlin-type gold deposits: By daylight, by caplight, and by the Caetano Caldera - Leeville Gold Mine, Carlin Trend, Pipeline-Cortez Hills Gold Mines, Caetano Caldera Carlin-type gold deposits: By daylight, by caplight, and by the Caetano Caldera - Leeville Gold Mine, Carlin Trend, Pipeline-Cortez Hills Gold Mines, Caetano Caldera
No abstract available.
Authors
Peter G. Vikre
Temporal Geochemistry Data from Five Springs in the Cement Creek Watershed, San Juan County, Colorado Temporal Geochemistry Data from Five Springs in the Cement Creek Watershed, San Juan County, Colorado
Temporal data from five springs in the Cement Creek watershed, San Juan County, Colorado provide seasonal geochemical data for further research in the formation of ferricretes. In addition, these data can be used to help understand the ground-water flow system. The resulting data demonstrate the difficulty in gathering reliable seasonal data from springs, show the unique geochemistry of...
Authors
Raymond H. Johnson, Laurie Wirt, Kenneth J. Leib
Electrical Resistivity and Seismic Surveys at the Nevada Test Site, Nevada, April 2007 Electrical Resistivity and Seismic Surveys at the Nevada Test Site, Nevada, April 2007
In April 2007, the USGS collected direct-current (DC) electrical resistivity data and shear- (S) and compressional- (P) wave seismic data to provide new detail of previously mapped, overlapping fault splays at two administrative areas in the Nevada Test Site (NTS). In NTS Area 7, we collected two-dimensional DC resistivity data along a transect crossing the Yucca Fault parallel to, and...
Authors
Seth S. Haines, Bethany L. Burton, Donald S. Sweetkind, Theodore H. Asch
Analytical Results for Municipal Biosolids Samples from a Monitoring Program near Deer Trail, Colorado (U.S.A.), 2007 Analytical Results for Municipal Biosolids Samples from a Monitoring Program near Deer Trail, Colorado (U.S.A.), 2007
Since late 1993, the Metro Wastewater Reclamation District of Denver (Metro District), a large wastewater treatment plant in Denver, Colorado, has applied Grade I, Class B biosolids to about 52,000 acres of nonirrigated farmland and rangeland near Deer Trail, Colorado (U.S.A.). In cooperation with the Metro District in 1993, the U.S. Geological Survey (USGS) began monitoring ground water...
Authors
J.G. Crock, D. B. Smith, T. J. B. Yager, C. J. Berry, M. G. Adams
Radionuclide Data and Calculations and Loss-On-Ignition, X-Ray Fluorescence, and ICP-AES Data from Cores in Catchments of the Animas River, Colorado Radionuclide Data and Calculations and Loss-On-Ignition, X-Ray Fluorescence, and ICP-AES Data from Cores in Catchments of the Animas River, Colorado
The U.S. Departments of Agriculture and Interior Abandoned Mine Lands (AML) Initiative is focused on the evaluation of the effect of past mining practices on the water quality and the riparian and aquatic habitats of impacted stream reaches downstream from historical mining districts located primarily on Federal lands. This problem is manifest in the eleven western states (west of...
Authors
Stan E. Church, Cyndi A. Rice, Marci E. Marot