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Page 4620, results 115476 - 115500

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Ground-water conditions and well yields in fractured rocks, southwestern Nevada County, California
R. W. Page, P.W. Anttila, K. L. Johnson, M.J. Pierce
1984, Water-Resources Investigations Report 83-4262
This report describes the availability of ground water in the southwestern part of Nevada County, and suggests general guidelines for selecting sites for future ground-water development in the study area. Ground water in this area occurs chiefly in fractures in hard pre-Tertiary metavolcanic and plutonic rocks generally above a depth...
Acid precipitation; an annotated bibliography
Denise A. Wiltshire, Margaret L. Evans
1984, Circular 923
This collection of 1660 bibliographies references on the causes and environmental effects of acidic atmospheric deposition was compiled from computerized literature searches of earth-science and chemistry data bases. Categories of information are (1) atmospheric chemistry (gases and aerosols), (2) precipitation chemistry, (3) transport and deposition (wet and dry), (4) aquatic...
Water resources of Sleeping Bear Dunes National Lakeshore, Michigan
A.H. Handy, J. R. Stark
1984, Water-Resources Investigations Report 83-4253
Sleeping Bear Dunes National Lakeshore in a water-rich area. It borders Lake Michigan and several small streams flow through the park to the lake. Small lakes are numerous within the park and near its boundaries. Ground water is available at most places in the park and wells yield as much...
Effects of hydraulic borehole mining on ground water at a test site in northeast St Johns County, Florida
P. S. Hampson
1984, Water-Resources Investigations Report 83-4149
An experimental mining project was conducted in northeast St. Johns County, Florida, to determine the feasibility of extracting deeply buried phosphate ore by hydraulic borehole mining techniques. The phosphate zone is between 232 and 250 feet below land surface and consists of approximately equal proportions of fine-grained phosphate, sand, and...
Basic concepts of kinematic-wave models
J.E. Miller
1984, Professional Paper 1302
The kinematic-wave model is one of a number of approximations of the dynamic-wave model. The dynamic-wave model describes onedimensional shallow-water waves (unsteady, gradually varied, openchannel flow). This report provides a basic reference on the theory and applications of the kinematic-wave model and describes the limitations of the model in relation...