Publications
Filter Total Items: 852
Isopach maps of the Powder River Basin, Montana and Wyoming
No abstract available.
Authors
J. E. Fox, Debra K. Higley
Structure-contour maps of the Powder River basin, Montana and Wyoming
No abstract available.
Authors
J. E. Fox, Debra K. Higley
Preliminary investigation of the distribution and resources of coal in the Kaiparowits Plateau, southern Utah
This report on the coal resources of the Kaiparowits Plateau, Utah is a contribution to the U.S. Geological Survey's (USGS) 'National Coal Resource Assessment' (NCRA), a five year effort to identify and characterize the coal beds and coal zones that could potentially provide the fuel for the Nation's coal-derived energy during the first quarter of the twenty-first century. For purposes of the NCRA
Authors
Robert D. Hettinger, L. N. R. Roberts, L. R. H. Biewick, M.A. Kirschbaum
Uraniferous waters of the Arkansas River valley, Colorado, U.S.A.: A function of geology and land use
The effect of local geology and land-use practices on dissolved U was investigated by analysis of surface water and some springs in the Arkansas River valley of southeastern Colorado. Water samples were collected during a 2 week period in April, 1991. The rate of increase of U concentration with distance downriver increased markedly as the river flowed from predominantly undeveloped lands underlai
Authors
Robert A. Zielinski, Sigrid Asher-Bolinder, A. L. Meier
1995 National Assessment of United States oil and gas resources: Results, methodology, and supporting data
This revised CD-ROM summarizes the results, released in 1995, of the 3-year study of the oil and gas resources of the onshore and state waters of the United States. Minor errors in the original DDS-30 (listed in DDS-35 and DDS-36) are corrected in this revised version and in the data files now released in DDS-35 and DDS-36. Estimates are made of technically recoverable oil, including measured (pro
Authors
Donald L. Gautier, Gordon Dolton, Kenneth I. Takahashi, Katharine L. Varnes
Mountain wetlands: Efficient uranium filters — Potential impacts
Wetlands are common in montane and subalpine settings in the Rocky Mountains, Sierra Nevada, and other mountainous regions of the western U.S. Because they are efficient filters, many contain anomalous concentrations of uranium and other metals. Sorption by organic matter, complexing of the uranyl ion, (UO2) 2+, with humic and fulvic acids, and action by bacteria has produced geochemical enrichmen
Authors
Douglass E. Owen, James K. Otton
Regional porosity trends of the Upper Jurassic Norphlet Formation in southwestern Alabama and vicinity, with comparisons to formations of other basins
Sandstone porosity of the Upper Jurassic Norphlet Formation in southwestern Alabama and vicinity decreases systematically as depth and thermal maturity increase over a wide range. Median porosity is about 25% where equivalent vitrinite reflectance (Ro) is slightly over 0.7% in the northern part of the study area (Clarke County, Mississippi). Median porosity is reduced to 8% where Ro approaches 2.7
Authors
James W. Schmoker, Christopher J. Schenk
Chiricahua Peak quadrangle, Cochise County, Arizona: Analytic data and geologic sample catalog
No abstract available.
Authors
Edward A. du Bray, Douglas B. Yager, John S. Pallister
Understanding our fragile environment; Lessons from geochemical studies
An understanding of our fragile environment can begin with a recognition of the importance of certain elements, commonly called "minerals substances" (such as iron and zinc), in the lives of humans and animals and in the soils that support plants. This recognition is well deserved because these elements are essential for the life or optimum health of an organism. Some elements such as carbon, hydr
Authors
Larry P. Gough, Sigrid Asher-Bolinder, Laurie S. Balistrieri, George N. Breit, Thomas J. Casadevall, James G. Crock, Kimberley I. Cunningham, Joseph S. Duval, James A. Erdman, Barbara M. Erickson, Walter H. Ficklin, Larry L. Jackson, Rama K. Kotra, Joel S. Leventhal, James M. McNeal, William R. Miller, James K. Otton, Douglass E. Owen, Geoffrey S. Plumlee, G. Michael Reimer, Ronald C. Severson, Kathleen S. Smith, Ronald R. Tidball, Robert A. Zielinski
Lanthanide element mobility and Sm-Nd systematics in a contact metamorphic zone
No abstract available.
Authors
Brian D. Marshall, Kiyoto Futa