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Page 4150, results 103726 - 103750

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Maps showing trace-element geochemistry of the Sangre de Cristo Wilderness Study Area, south-central Colorado
David R. Zimbelman
1989, Miscellaneous Field Studies Map 1635-C
A trace-element geochemical study of the Sangre de Cristo Wilderness Study Area included the collection of 710 heavy-mineral-concentrate samples, 767 minus-80 mesh stream-sediment samples, and 145 rock samples.  All samples were analyzed for 31 elements by semiquantitative emission-spectrographic methods, and some stream-sediment and rock samples were also analyzed for selected...
Direct-current vertical electrical-resistivity soundings in the Lower Peninsula of Michigan
D.B. Westjohn, P.J. Carter
1989, Open-File Report 89-244
Ninety-three direct-current vertical electrical-resistivity soundings were conducted in the Lower Peninsula of Michigan from June through October 1987. These soundings were made to assist in mapping the depth to brine in areas where borehole resistivity logs and water-quality data are sparse or lacking. The Schlumberger array for placement of current...
Ground-water levels in the alluvial aquifer in eastern Arkansas, 1987
Paul W. Westerfield
1989, Open-File Report 89-64
Groundwater level measurements of 516 wells that tap the alluvial aquifer in the Quaternary deposits of the Mississippi Alluvial Plain were made by U.S. Geological Survey and district Soil Conservation Service personnel during 1987. The shallowest prepumping water levels occurred in Ashley, Clay, Crittenden, Greene, Mississippi, Phillips, and Randolph Counties...
Geohydrology and susceptibility of major aquifers to surface contamination in Alabama; area 2
C. R. Bossong
1989, Water-Resources Investigations Report 88-4177
The major aquifers in the study area (Blount, Cherokee, DeKalb, Etowah, Jackson, and Marshall Counties in northern Alabama) are the Knox-Shady, Tuscumbia-Fort Payne, and Pottsville aquifers. These aquifers are sources of public water supply and are recharged in each of the six counties. Major aquifers are susceptible to contamination from...
Water-resources activities of the U.S. Geological Survey in Texas— Fiscal year 1988
Alicia A. Mitchell
1989, Open-File Report 89-73
This report describes the activities of the U.S. Geological Survey Water Resources Division in Texas for fiscal year 1988. The project number, cooperating agencies, project chief, period of project, location, problem, objective, approach, progress, reports in preparation, and reports published are given for each project in the Texas District. The...