Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Altitude and configuration of the potentiometric surface in Springfield Township, Bucks County, Pennsylvania, April 1991 through October 1991 Altitude and configuration of the potentiometric surface in Springfield Township, Bucks County, Pennsylvania, April 1991 through October 1991
No abstract available
Authors
Curtis L. Schreffler
Altitude and configuration of the potentiometric surfaces of the upper and lower aquifer systems in Bridgeton, Nockamixon, and Tinicum Townships, Bucks County, Pennsylvania, April 1991 through April 1992 Altitude and configuration of the potentiometric surfaces of the upper and lower aquifer systems in Bridgeton, Nockamixon, and Tinicum Townships, Bucks County, Pennsylvania, April 1991 through April 1992
The mapped area in underlain by layered sedimentary rocks chiefly consisting of shale, mudstone, siltstone, and argillite and by a diabase sheet thtat has intruded the sedimentary rocks. The sedimentary rocks adjacent to the diabase are thermally altered to hornfels. Water levels in shallow wells completed in the diabase indicate the presence of an upper, shallow aquifer system.
Authors
B. Craig McManus, Cynthia J. Rowland
Geohydrology and simulation of ground-water flow in the Red Clay Creek Basin, Chester County, Pennsylvania, and New Castle County, Delaware Geohydrology and simulation of ground-water flow in the Red Clay Creek Basin, Chester County, Pennsylvania, and New Castle County, Delaware
The 54-square-mile Red Clay Creek Basin, located in the lower Delaware River Basin, is underlain primarily by metamorphic rocks that range from Precambrian to Lower Paleozoic in age. Ground water flows through secondary openings in fractured crystalline rock and through primary openings below the water table in the overlying saprolite. Secondary porosity and permeability vary with...
Authors
Karen L. Vogel, Andrew G. Reif
The distribution of silver and other metals in sediments from Massachusetts and Cape Cod Bays The distribution of silver and other metals in sediments from Massachusetts and Cape Cod Bays
No abstract available.
Authors
Michael H. Bothner, Marilyn R. Buchholtz ten Brink, C.M. Parmenter, W. M. d’Angelo, M. W. Doughten
Water quality of the Upper West Branch Susquehanna River and tributary streams between Curwensville and Renovo, Pennsylvania, May and July 1984 Water quality of the Upper West Branch Susquehanna River and tributary streams between Curwensville and Renovo, Pennsylvania, May and July 1984
The soils and rocks of the Upper West Branch Susquehanna River basin, from its headwaters downstream for 150 miles, are laden with pyritic materials that have the potential to produce acid mine drainage. The effects of mine drainage are severe, particularly in the reach between Curwensville and Renovo where present water quality cannot support viable populations of benthic...
Authors
R.A. Hainly, J. L. Barker
Water-quality data for two surface coal mines reclaimed with alkaline waste or urban sewage sludge, Clarion County, Pennsylvania, May 1983 through November 1989 Water-quality data for two surface coal mines reclaimed with alkaline waste or urban sewage sludge, Clarion County, Pennsylvania, May 1983 through November 1989
Water-quality and other hydrologic data for two surface coal mines in Clarion County, Pa., were collected during 1983-89 as part of studies conducted by the U.S. Geological Survey in cooperation with the Pennsylvania Department of Environmental Resources. Water samples were collected from streams, seeps, monitor wells, and lysimeters on a monthly basis to evaluate changes in water...
Authors
D.L. Dugas, C.A. Cravotta, D. A. Saad
Baykal rift structure Baykal rift structure
No abstract available.
Authors
L.P. Zonenshain, A.A. Gol’mshtok, D. Hutchinson
A guide to continent-ocean transect E-1: Adirondacks to Georges Bank A guide to continent-ocean transect E-1: Adirondacks to Georges Bank
The geologic strip-map for Transect E-l cuts a swath from the Thousand Islands region on the New York-Ontario border to the Atlantic Ocean floor off Georges Bank (see Fig. 1). It includes portions of New York, Ontario and of all of the New England states. The western part, mainly in New York, belongs to the North American craton. The remainder of the onland portion, east of Logan's Line...
Authors
James B. Thompson, Wallace A. Bothner, Peter Robinson, Yngvar W. Isachsen, Kim D. Klitgord
Geologic assessments and characterization of marine sand resources - Gulf of Mexico region Geologic assessments and characterization of marine sand resources - Gulf of Mexico region
The U.S. Geological Survey conducts geologic surveys and research in marine areas of the United States and its territories and possessions. An objective in some of the investigations is locating and evaluating marine sand and gravel resources and interpretation of the origins of the sand body deposits. Results from such studies over the past 30 years show that many extremely large...
Authors
S. Jeffress Williams, Helana A. Cichon
Evaluation of acid mine drainage with the rapid bioassessment protocol Evaluation of acid mine drainage with the rapid bioassessment protocol
No abstract available at this time
Authors
A. Hendricks, M. Miller, C. Snyder
Effects of repetitive formalin treatments on channel catfish juveniles Effects of repetitive formalin treatments on channel catfish juveniles
Channel catfish Icialurus punctatus ranging from 70 to 148 mm in total length were treated with formalin at a concentration of 25 μL/L for 4 h daily on four successive days each week over a 28-week period beginning in mid-September. Coefficients of condition (weight-tolength ratios) and histological examinations of gill tissues were used to evaluate health of fish exposed to formalin...
Authors
L.R. Bodensteiner, R.J. Sheenan, W.M. Lewis, P.S. Wills, R. Herman