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Page 3949, results 98701 - 98725

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Hydrogeology and ground-water flow in the carbonate rocks of the Little Lehigh Creek basin, Lehigh County, Pennsylvania
R. A. Sloto, L.D. Cecil, L.A. Senior
1991, Water-Resources Investigations Report 90-4076
The Little Lehigh Creek basin is underlain mainly by a complex assemblage of highly-deformed Cambrian and Ordovician carbonate rocks. The Leithsville Formation, Allentown Dolomite, Beekmantown Group, and Jacksonburg Limestone act as a single hydrologic unit. Ground water moves through fractures and other secondary openings and generally is under water-table conditions....
Bibliography of Regional Aquifer-System Analysis Program of the US Geological Survey, 1978-91
Ren Jen Sun, John B. Weeks
1991, Water-Resources Investigations Report 91-4122
The Regional Aquifer-System Analysis (RASA) Program of the U.S. Geological Survey was initiated in 1978. The purpose of this program is to define the regional geohydrology and establish a framework of background information on geology, hydrology, and geochemistry of the Nation's important aquifer systems. This information is critically needed to...
Field experiments and simulations of infiltration-rate response to changes in hydrologic conditions for an artificial-recharge test basin near Oakes, southeastern North Dakota
D. M. Sumner, W.M. Schuh, R.L. Cline
1991, Water-Resources Investigations Report 91-4127
Ponded depth in an artificial-recharge basin was used as a management option to conduct turbid water from the James River to the Oakes aquifer. Infiltration-rate response to changes in ponded depth was evaluated for a 15xl5-meter artificial-recharge test basin constructed in a medium-sandy soil in the irrigation area near Oakes,...
ALACARTE User Interface - AML Code and Demonstration Maps
Todd T. Fitzgibbon, Carl M. Wentworth
1991, Open-File Report 91-587-A
ALACARTE offers a convenient way to compile geologic maps in the computer as spatial databases that can be used to prepare both cartographic images and analytic derivatives. It is a menu-controlled shell, organized in geologic terms, that provides on-screen control of the program ARC/INFO, a commercial geographic information system (GIS). Input can...