Publications
Impartial scientific information
Interpretive journal articles from Virginia and West Virginia Water Science Center scientists.
Interpretive journal articles from Virginia and West Virginia Water Science Center scientists.
Publications are crucial for the dissemination of the Virginia and West Virginia Water Science Center's scientific data and conclusions. View journal articles authored by our Center's scientists here. The full, searchable catalog of USGS publications can be accessed through the USGS Publications Warehouse.
Filter Total Items: 294
Pesticide and PCB residues for loggerhead shrikes in the Shenandoah Valley Pesticide and PCB residues for loggerhead shrikes in the Shenandoah Valley
The decline in loggerhead shrike (Lanius ludovicianus) populations is widespread and coincides with the use of organochlorines that began in the late 1940's and increased until the 1970's (Morrison 1981; Robbins et al. 1986; Tate 1986). An inhabitant of farmland areas, loggerhead shrikes prey on invertebrates and small vertebrates (Bent 1950), and thus risk exposure to pesticides and...
Authors
A. K. Blumton, J.D. Fraser, R.W. Young, S. Goodbred, S.L. Porter, D.L. Luukkonen
Vegetation alteration along trails in Shenandoah National Park, Virginia Vegetation alteration along trails in Shenandoah National Park, Virginia
Most studies in the USA of vegetation alteration and human impact along trails have been located in large western wilderness areas. The objective of this study was to determine vegetation changes occurring along trails in an eastern ecosystem supporting second-growth deciduous forest. The location of this study was Shenandoah National Park in Virginia, which has a long history of trail...
Authors
Christine N. Hall, Fred R. Kuss
The structural geometry and evolution of foreland thrust systems, northern Virginia The structural geometry and evolution of foreland thrust systems, northern Virginia
Seismic reflection data reveal that the structural geometry of the central Appalachians of northern Virginia consists of three distinct thrust systems. Each thrust system is characterized by a unique internal geometry.The Blue Ridge thrust sheet is a composite thrust sheet composed primarily of imbricated Precambrian crystalline rocks. It over-rode Cambrian-Ordovician carbonates and...
Authors
Mark A. Evans
Acidic deposition to streams: A geology-based method predicts their sensitivity Acidic deposition to streams: A geology-based method predicts their sensitivity
All water that reaches watershed systems comes directly or indirectly from precipitation. Normally, this water contains very small amounts of dissolved solids and is only slightly acidic. As a result of chemical reactions in watersheds, however, stream water generated from precipitation normally is less acidic and contains larger concentrations of dissolved solids than does the...
Authors
Owen P. Bricker, Karen C. Rice
Geology of the Harrisonburg and Bridgewater quadrangles, Virginia Geology of the Harrisonburg and Bridgewater quadrangles, Virginia
The Harrisonburg and Bridgewater quadrangles comprise an area of approximately 117 square miles in Rockingham County in northwestern Virginia.This area is in the western part of the Shenandoah Valley, a portion of the Valley and Ridge physiographic province, and contains parts of three major geologic structures-the Staunton and North Mountain thrust faults and the Massanutten...
Authors
Thomas M. Gathright, Peter S. Frischmann
West Virginia gazetteer of physical and cultural place names West Virginia gazetteer of physical and cultural place names
No abstract available.
Authors
Robert B. Erwin
Geology of the Waynesboro East and Waynesboro West Quadrangles, Virginia Geology of the Waynesboro East and Waynesboro West Quadrangles, Virginia
The Waynesboro East and Waynesboro West Quadrangles comprise an area of approximately 117 square miles (304 sq km) in portions of Albemarle, Augusta, and Nelson counties in north-central Virginia. Included in the quadrangles are portions of the Piedmont, Blue Ridge, and Valley and Ridge physiographic provinces and two major regional structures - the Blue Ridge anticlinoriurm and the...
Authors
Thomas M. Gathright, William S. Henika, John L. Sullivan
Geology of the Greenfield and Sherando quadrangles, Virginia Geology of the Greenfield and Sherando quadrangles, Virginia
No abstract available.
Authors
Mervin J. Bartholomew
Geology of the Shenandoah National Park, Virginia Geology of the Shenandoah National Park, Virginia
No abstract available.
Authors
Thomas M. Gathright
Geology and mineral resources of Page County Geology and mineral resources of Page County
No abstract available.
Authors
R. M. Allen
Geology and mineral resources of Frederick County Geology and mineral resources of Frederick County
No abstract available.
Authors
Charles Butts, R.S. Edmundson
Ground-water features of Berkeley and Jefferson Counties Ground-water features of Berkeley and Jefferson Counties
No abstract available.
Authors
Paul Peter Bieber