Publications
These publications showcase the significant science conducted in our Science Centers.
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Altitude and configuration of the potentiometric surface, December 6, 1994, in the carbonate rocks in part of East Whiteland and Charlestown townships, Chester County, Pennsylvania Altitude and configuration of the potentiometric surface, December 6, 1994, in the carbonate rocks in part of East Whiteland and Charlestown townships, Chester County, Pennsylvania
A map showing ground-water levels in the carbonate rocks in part of East Whiteland and Charlestown Townships, Chester County, Pennsylvania, was constructed from water levels measured in 64 wells on December 6, 1994. Observed water-level altitudes range from 226 feet above sea level near Morehall Road to 400 feet above sea level near State Route 401 in East Whiteland Township.
Authors
B. C. McManus, R. A. Sloto
Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in East Brandywine, Upper Uwchlan and Uwchlan townships and parts of Caln, East Caln, and West Whiteland townships, Chester County, Pennsylvania, April 1 Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in East Brandywine, Upper Uwchlan and Uwchlan townships and parts of Caln, East Caln, and West Whiteland townships, Chester County, Pennsylvania, April 1
No abstract available
Authors
Stephen S. Aichele, C. R. Wood
Nutrient and triazine-herbicide concentrations in streams of the Chickies Creek Basin, south-central Pennsylvania, during low-flow conditions Nutrient and triazine-herbicide concentrations in streams of the Chickies Creek Basin, south-central Pennsylvania, during low-flow conditions
Excessive nutrients and herbicides in surface and ground water can affect human health and the aquatic life in Chickies Creek. Potential sources of these contaminants are all around us—direct application of nutrients and herbicides on land, discharge from wastewater-treatment and septic systems, and even deposition from the atmosphere. However, by far the largest source in the Chickies...
Authors
Michael J. Langland, Lloyd A. Reed
Voucher specimens Voucher specimens
No abstract available.
Authors
R.P. Reynolds, R.J. Crombie, R.W. McDiarmid, Terry L. Yates
Preliminary analysis of down-core biotic assemblages Bob Allen Keys, Everglades National Park, Florida Bay Preliminary analysis of down-core biotic assemblages Bob Allen Keys, Everglades National Park, Florida Bay
Authors
G. L. Brewster-Wingard, S. E. Ishman, Thomas M. Cronin, Lucy E. Edwards, Debra A. Willard, R. B. Halley
Cretaceous and Paleogene calcareous nannofossil biostratigraphy of New Jersey Cretaceous and Paleogene calcareous nannofossil biostratigraphy of New Jersey
No abstract available.
Authors
Jean Self-Trail, Laurel M. Bybell
The influence of Hurricane Andrew on sediment distribution in Louisiana coastal marshes The influence of Hurricane Andrew on sediment distribution in Louisiana coastal marshes
The areal extent and temporal patterns of sediment deposition in delta marshes and shallow water bodies of Louisiana associated with the passage of Hurricane Andrew were determined from sediment traps, marker horizons, and benchmarks deployed for other studies. Data were collected over different time scales from 11 sites representing salt, brackish, and intermediate marshes, shallow...
Authors
Donald R. Cahoon, Denise J. Reed, J.W. Day, Gregory Steyer, R.M. Boumans, James C. Lynch, David McNally, Numair Latif
Population size, trends, and conservation problems of the Double-Crested Cormorant on the Pacific Coast of North America Population size, trends, and conservation problems of the Double-Crested Cormorant on the Pacific Coast of North America
Population size, trends and conservation problems of the Double-crested Cormorant (Phalacrocorax auritus) were collated for the Pacific coast of North America using available data up to 1992. About 54,942 birds currently breed there, including roughly 5,848 (5,622 at 90 coastal colonies and at least 226 at 5 interior colonies) and 49,094 (43,358 at 126 coastal colonies and at least 5,736...
Authors
Harry R. Carter, Arthur L. Sowls, M. S. Rodway, Ulrich W. Wilson, Roy W. Lowe, Gerard J. McChesney, Franklin Gress, Daniel W. Anderson
Audit of VSMOW distributed by the United States National Institute of Standards and Technology Audit of VSMOW distributed by the United States National Institute of Standards and Technology
Bright-orange floating matter (possibly algae) has been observed in the United States supply of some ampoules and in one of two 10-L primary glass storage flasks of the isotopic reference water VSMOW (Vienna Standard Mean Ocean Water). Within experimental error, ampoules with and without this orange matter are identical in stable hydrogen and oxygen isotopic composition. Thus, the North...
Authors
Jessica A. Hopple, Graham D. Foster
Assessing the hydrologic impact of land use change in wetland watersheds: A case study from Northern Ohio, USA Assessing the hydrologic impact of land use change in wetland watersheds: A case study from Northern Ohio, USA
No abstract available.
Authors
K. A. McClintock, J. A. Harbor, Timothy P. Wilson
Chemical and biological processes affecting the fate and transport of trichloroethylene in the subsurface at Picatinny Arsenal, New Jersey Chemical and biological processes affecting the fate and transport of trichloroethylene in the subsurface at Picatinny Arsenal, New Jersey
No abstract available.
Authors
Thomas E. Imbrigiotta, T. A. Ehlke, Mary Martin, David Koller, J. A. Smith