Index Catalog // ScholarsArchive@OSU

Creator:: Snavely, P. D., Jr. and Geological Survey (U.S.)
Abstract:: The Tertiary geologic evolution of the Oregon and Washington continental margin was molded by episodic periods of convergence between the Pacific oceanic plates and the North American plate. This margin is the site of a deep basin that is floored by Paleocene to lower Eocene oceanic crust and contains more...
Resource Type:: Part of Book

Creator:: Geological Survey (U.S.), Oregon. Department of Geology and Mineral Industries, and United States. Congress. Senate. Committee on Interior and Insular Affairs
Resource Type:: Book

Creator:: Friday, John, Miller, Suzanne J., Oregon. Water Resources Department, and Geological Survey (U.S.)
Abstract:: Statistical summaries of streamflow data at 212 stream-gaging sites are presented in this report to aid in appraising the hydrology of river basins in Western Oregon. Records for 21 gaging stations were compiled into separate periods owing to changes in regulation during the period of data collection. The periods before...
Resource Type:: Technical Report

Creator:: Friday, John, Miller, Suzanne J., Oregon. Water Resources Department, and Geological Survey (U.S.)
Abstract:: Statistical summaries of streamfiow data at 123 stream-gaging sites are presented in this report to aid in appraising the hydrology of river basins in Eastern Oregon. Records for 13 gaging stations were compiled into separate periods owing to changes in regulation during the period of data collection. The periods before...
Resource Type:: Technical Report

Creator:: Bonn, Bernadine A., Washington County (Or.). Unified Sewerage Agency., and Geological Survey (U.S.)
Abstract:: The U.S. Geological Survey (USGS) has worked cooperative with the Unified Sewerage Agency of Washington County (USA) since 1990 to assess water quality in the Tualatin River Basin. The objectives of this study were to: assess the occurrence and magnitude of trace element and selected organic contaminants in streams of...
Resource Type:: Technical Report

Creator:: Rinella, Frank A., Geological Survey (U.S.), United States. Forest Service, and Douglas County (Or.)
Abstract:: This report presents the concentrations of major ions, nutrients, and trace elements in water and bottom sediments collected in the four-tributaries during the low-flow condition of September 9-13, 1996. Stream-water chemistry results are contrasted, and trace-element concentrations compared with U.S. Environmental Protection Agency chronic aquatic life toxicity criteria. Bottom -sediment...
Resource Type:: Technical Report

Creator:: Hinkle, Stephen R. and Geological Survey (U.S.)
Abstract:: This report presents results of an investigation of water and streambed-sediment quality in selected tributaries of the South Umpqua River. Concentrations of inorganic constituents in water (major and minor ions, nutrients, and trace elements) and streambed sediment (primarily trace elements), along with standard field parameters, are tabulated for samples collected...
Resource Type:: Technical Report

Creator:: Altman, Bob, Henson, Colleen M., Waite, Ian R., United States. Fish and Wildlife Service, National Water-Quality Assessment Program (U.S.), and Geological Survey (U.S.)
Abstract:: This report reviews and summarizes available information on aquatic biological communities in the Willamette Basin through 1995. Specifically, the report describes (1) the distribution, abndance, and trends of three taxonomic groups--algae, macroinvertebrates, and fish--and, to a lesser degree, other selected semi-aquatic taxa (i.e., taxa frequenting but not living wholly in...
Resource Type:: Technical Report

Creator:: Hinkle, Stephen R., National Water-Quality Assessment Program (U.S.), and Geological Survey (U.S.)
Abstract:: The purposes of this report are to describe the quality of shallow ground water in alluvial aquifers of the Willamette Basin and to identify relationships between shallow ground-water quality and various natural and anthropogenic factors. Several natural and anthropogenic factors (soil characteristics, cumulative thickness of clay above open interval of...
Resource Type:: Technical Report

ScholarsArchive@OSU