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Page 4726, results 118126 - 118150

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Publication Extents

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Index of faults of Cretaceous and Cenozoic age in the eastern United States
David C. Prowell
1983, Miscellaneous Field Studies Map 1269
The information in this report was collected between 1974 and 1982 as part of the Reactor Hazards Program of the U.S. Geological Survey (USGS). This program was initiated to delineate and assess geologic hazards that could be particularly detrimental to major constructions, especially nuclear reactors. Faults are of principal interest...
Man-induced channel adjustment in Tennessee streams
C. H. Robbins, Andrew Simon
1983, Water-Resources Investigations Report 82-4098
Channel modifications in Tennessee, particularly in the western part, have led to large-scale instabilities in the channelized rivers and may have contributed to several bridge failures. These modifications, together with land-use practices, led to downcutting, headward erosion, downstream aggradation, accelerated scour, and bank instabilities. Changes in gradient by channel straightening...
Simulations of non-steady flow in a glacial outwash aquifer, southern Franklin County, Ohio
A. C. Razem
1983, Water-Resources Investigations Report 83-4022
A two-dimensional, finite-difference model is used to simulate transient flow conditions in a glacial outwash aquifer in southern Franklin County, Ohio. The model was calibrated by matching observed and simulated water-level changes for December 1977 through March 1980. Drawdowns for three different hypothetical pumping rates are simulated with the calibrated...
Geology of faults exposed in trenches in Crater Flat, Nye County, Nevada
W. C. Swadley, D. L. Hoover
1983, Open-File Report 83-608
Study of three trenches excavated across two faults along the eastern edge of Crater Flat indicates that the main fault movement offset unit QTa in trench 1 at least 2.4 m down to the west, and occurred about 1.1 m.y. ago, as indicated by included basalt ash. Later fault movement,...