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Page 6606, results 165126 - 165150

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Seismic refraction surveys in the vicinity of Eagle City, Clark County, Ohio
Jerry H. Hassemer, Joel S. Watkins, Norman G. Bailey
1966, Open-File Report 66-58
As part of a continuing program to define the thickness and extent of water-bearing sand and gravel deposits in southwestern Ohio, the U.S. Geological Survey, in cooperation with the Ohio Division of Water, in the summer of 1964 completed a seismic refraction survey in the vicinity of Eagle and Tremont...
Mines and prospects, Idaho Springs district, Clear Creek and Gilpin counties, Colorado -- Descriptions and maps
Robert Hadley Moench, Avery Drake Jr.
1966, Open-File Report 66-87
The Idaho Springs mining district forms an important segment of the Front Range mineral belt, a northeast-trending zone of coextensive intrusive rocks and hydrothermal ore deposits of early Tertiary age. This belt, which is about 50 miles long, extends from the region just west of Boulder southwestward across the Front...
Methods for analysis of selected metals in water by atomic absorption
Marvin J. Fishman, Sanford C. Downs
1966, Water Supply Paper 1540-C
This manual describes atomic-absorption-spectroscopy methods for determining calcium, copper, lithium, magnesium, manganese, potassium, sodium, strontium and zinc in atmospheric precipitation, fresh waters, and brines. The procedures are intended to be used by water quality laboratories of the Water Resources Division of the U.S. Geological Survey. Detailed procedures, calculations, and methods...