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Page 4847, results 121151 - 121175

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Geohydrologic data along the Salt-Gila aqueduct of the central Arizona project in Maricopa and Pinal counties, Arizona
B.L. Wallace, B.M. Wrege, H. H. Schumann
1986, Open-File Report 86-236
The U.S. Geological Survey, in cooperation with the U.S. Bureau of Reclamation, is conducting an investigation of land subsidence and earth fissures along the Salt-Gila aqueduct to identify hazard zones and to provide design data for the Central Arizona Project aqueducts. Thirty-three test holes were drilled along the Salt-Gila aqueduct...
Maps showing geology, geochemistry, and mineral resources assessment of the Rough Mountain Roadless Area, Alleghany and Bath counties, Virginia
Frank G. Lesure, Suzanne W. Nicholson
1986, Miscellaneous Field Studies Map 1811
The Rough Mountain Roadless Area comprises about 9,300 acres of George Washington National Forest land in the Valley and Ridge province in west-central Virginia. The area, which is about 6 mi long and 2 mi wide, is in Bath and Alleghany Counties, about 3 mi south of Millboro Springs, Va....
Analysis of fixed-station water-quality data in the Umpqua River basin, Oregon
J. F. Rinella
1986, Water-Resources Investigations Report 85-4253
An appraisal of surface water quality in the Umpqua River basin was made using existing monthly data collected by the Oregon Department of Environmental Quality and the U.S. Geological Survey in cooperation with the Douglas County Water Resources Survey. This appraisal was limited to interpretation of instantaneous monthly water quality...
Plan of study for the regional aquifer systems analysis of the Michigan Basin
Richard J. Mandle
1986, Open-File Report 86-494
Quaternary glacial deposits and Pennsylvanian and Mississippian sandstones, -the Saginaw Formation and Marshall Sandstone- are the major aquifers in the Michigan basin. These aquifers supply approximately 188 million gal/day to municipalities in the 29 ,000 sq mi study area. The most significant problems related to groundwater supplies are the identification...
Geochemical maps showing distribution and abundance of barium in two fractions of stream-sediment concentrates, Silver City 1 degree by 2 degrees Quadrangle, New Mexico and Arizona
Kenneth C. Watts, Jerry R. Hassemer, Carl L. Forn, David F. Siems
1986, Miscellaneous Field Studies Map 1183-K
These maps (Maps A and B) show the distribution and abundance barium in the nonmagnetic and magnetic fractions of heavy-mineral concentrates from stream sediments collected in the Silver City 1o x 2o quadrangle, New Mexico and Arizona. Geochemical maps showing the distribution and abundance of 10 other selected key elements and the mineral...