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Page 4634, results 115826 - 115850

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Potentiometric surface of the upper Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1984
George R. Schiner, Eugene C. Hayes
1984, Open-File Report 84-865
This map shows the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 1984. The Upper Floridan aquifer is the principal source of potable water in the area. Water-level measurements were made on approximately 1,000 wells and on several springs....
Annual summary of ground-water conditions in Arizona, spring 1982 to spring 1983
Water Resources Division, U.S. Geological Survey
1984, Open-File Report 84-428
The withdrawal of ground water was slightly less than 4.2 million acre-feet in Arizona in 1982, which is about 1.2 million acre-feet less than the amount withdrawn in 1981. Most of the decrease in 1982 was in the amount of ground water used for irrigation in the Basin and Range...
Reconnaissance geologic map of the Janban Quadrangle, sheet 20/44 B, Kingdom of Saudi Arabia
M. R. Brock
1984, Open-File Report 84-390
The Janban quadrangle, 20/44B, lies along the eastern margin of the Arabian Shield. The oldest rocks comprise the Precambrian Namtah Formation of the Halaban(?) group, and consist of basalt, dacite, siltstone, and calcareous greywacke metamorphosed in the lower amphibolite facies. Metamorphic rocks of uncertain Precambrian age in the northern part...