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Page 5923, results 148051 - 148075

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Geology and ore deposits of the Kutam Mine, Kingdom of Saudi Arabia
Charles W. Smith, R. Ernest Anderson, M.R. Dehlavi
1977, Open-File Report 78-519
The ancient Kutam mine in southwestern Saudi Arabia was discovered during the course of regional geologic mapping. Malachite coatings along fractures in the ancient workings and nearby large piles of slag indicate the mine was worked for copper. Quartz porphyry of Precambrian age is the principal host rock of the deposit....
Water resources data for California; water year 1975; Volume 2: Pacific Slope basins from Arroyo Grande to Oregon State line except Central Valley
Water Resources Division, U.S. Geological Survey
1977, Water Data Report CA-75-2
Water-resources data for the 1975 water year for California consist of records of streamflow and contents of reservoirs at gaging stations, partial-record stations, and miscellaneous sites; records of water quality including the physical, chemical, and biological characteristics of surface and ground water; and records of water levels in selected observation...
Water table in the surficial aquifer and potentiometric surface of the Floridan Aquifer in selected well fields, west-central Florida, September 1976
Paul D. Ryder, L. R. Mills
1977, Open-File Report 77-551
The water table in the surficial aquifer and the potentiometric surface of the Florida aquifer in a 1200 square-mile area in west-central Florida are mapped semiannually by the U. S. Geological Survey. Maps are prepared on the basis of water levels measured in wells each May to coincide with seasonal...
Water-quality study of Tulpehocken Creek, Berks County, Pennsylvania, prior to impoundment of Blue Marsh Lake
James L. Barker
1977, Water-Resources Investigations Report 77-55
Blue Marsh Lake is planned as a multipurpose impoundment to be constructed on Tulpehocken Creek near Bernville, Berks County, Pennsylvania. Prior to construction, samples of water, bed material, and soil were collected throughout the impoundment site to determine concentrations of nutrients, insecticides, trace metals, suspended sediment, and bacteria. Analyses of water...
Preliminary assessment of the water resources of the Tulalip Indian Reservation, Washington
B. W. Drost
1977, Open-File Report 76-493
In 1974 about 30 percent of the nearly 600 acre-feet of water used on the Tulalip Indian Reservation was obtained from a surface-water reservoir, while nearly 70 percent was obtained from ground-water sources. Domestic use accounted for about 93 percent of total water use. Nutrient (phosphorus) concentrations measured in most...