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184689 results.

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Page 6357, results 158901 - 158925

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Publication Extents

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Mathematical ground-water model of Indian Wells Valley, California
R. M. Bloyd Jr., S. G. Robson
1971, Open-File Report 72-41
A mathematical model of the Indian Wells Valley ground-water basin was developed and verified. The alternating-direction implicit method was used to compute the mathematical solution. It was assumed that there are only two aquifers in the valley, one being deep and the other shallow. Where the shallow aquifer occurs, the...
Geology of the insular shelf south of St. Thomas and St. John, U.S. Virgin Islands
L. E. Garrison, Charles Ward Holmes, James V. Trumbull
1971, Open-File Report 71-117
A reconnaissance study has been made of the geology of the insular shelf south of St. Thomas and St. John, Virgin Islands. High-resolution seismic-reflection profiling reveals that a buried northeast-southwest striking bedrock ridge controls the shallow structure of the eastern portion of the shelf. This ridge is thought to be...
A list of references on lead isotope geochemistry, 1967-1969 (with an addendum to the list through 1966)
Bruce R. Doe
1971, Open-File Report 71-89
This bibliography was constructed to be as complete as possible for terminal papers containing new data relative to the geochemical applications of: Common lead U-The-Pb isotopic dating Pb-α Pb210, Pb212, Pb214 No effort was made for completeness of: Annual reports, Yearbooks, etc. Review papers although many are included. Abstracts and theses are omitted....
Ground-water resources of Walsh County, northeastern North Dakota
Joe S. Downey
1971, Hydrologic Atlas 431
This investigation is part of a statewide program to determine the location, extent, and nature of the ground-water reservoirs (aquifers); to evaluate the occurrence and movement of ground water within these aquifers, including the sources and areas of recharge and discharge; to estimate the potential yields of wells tapping the...