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Page 4820, results 120476 - 120500

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Preliminary report on geophysical well-logging activity on the Salton Sea Scientific Drilling Project, Imperial Valley, California
Frederick L. Paillet, R. H. Morin, H.E. Hodges
1986, Open-File Report 86-544
The Salton Sea Scientific Drilling Project has culminated in a 10,564-ft deep test well, State 2-14 well, in the Imperial Valley of southern California. A comprehensive scientific program of drilling, coring, and downhole measurements, which was conducted for about 5 months, has obtained much scientific information concerning the physical and...
Analytical results and sample locality map of heavy-mineral- concentrate and rock samples from the Kingston Range Wilderness Study Area (CDCA-222), San Bernardino County, California
B. M. Adrian, J. G. Frisken, M.J. Malcolm, J.G. Crock, Paul H. Briggs
1986, Open-File Report 86-404
During 1984, 60 stream sites were sampled for the presence of Giardia sp. cysts. The sampling sites ranged in elevation from 6 ,000 to 12,000 feet, and were distributed over a distance of more than 200 miles, from the Lake Tahoe basin in the north to Mt. Whitney in the...
Geologic map of southern Prince of Wales Island, southeastern Alaska
George E. Gehrels, Jason B. Saleeby
1986, Open-File Report 86-275
Southern Prince of Wales Island is underlain by stratified, intrusive, and metamorphic rocks of Cretaceous through pre-Middle Ordovician age and by surficial deposits. The region was mapped originally in reconnaissance fashion by Buddington and Chapin (1929) and subsequently by W.H. Condon and I.L. Tailleur (unpublished U.S.G.S. report, 1960) primarily with...
Gas-film coefficients for the volatilization of ketones from water
R. E. Rathbun, D. Y. Tai
1986, Water Supply Paper 2286
Volatilization is a significant process in determining the fate of many organic compounds in streams and rivers. Quantifying this process requires knowledge of the mass-transfer coefficient from water, which is a function of the gas-film and liquid-film coefficients. The gas-film coefficient can be determined by measuring the flux for the...
Plan of study for the Regional Aquifer-System Analysis, Columbia Plateau, Washington, northern Oregon, and northwestern Idaho
J. J. Vaccaro
1986, Water-Resources Investigations Report 85-4151
The U.S. Geological Survey began a 4-year study of the regional aquifer system underlying the Columbia Plateau, in central and eastern Washington, northern Oregon, and northwestern Idaho in October 1983, as part of the Regional Aquifer System Analysis program. The study will describe the geohydrology, geochemistry, and quality of water...
Simulation of streamflow temperatures in the Yakima River basin, Washington, April-October 1981
J. J. Vaccaro
1986, Water-Resources Investigations Report 85-4232
The effects of storage, diversion, return flow, and meteorological variables on water temperature in the Yakima River, in Washington State, were simulated, and the changes in water temperature that could be expected under four alternative-management scenarios were examined for improvement in anadromous fish environment. A streamflow routing model and Lagrangian...
A history of annual streamflows from the 21 water-resource regions in the United States and Puerto Rico, 1951-83
D.J. Graczyk, W.R. Krug, W.A. Gebert
1986, Open-File Report 86-128
Annual streamflows from the 21 water-resource regions in the United States and Puerto Rico were calculated for the period 1951-83. The total streamflow discharging to the oceans from the conterminous United States during this period averaged 1,270 billion gallons per day. The outflow from the Lower Mississippi Water-Resource Region (08),...
Genesis and evolution of the Baid al Jimalah tungsten deposit, Kingdom of Saudi Arabia
Robert J. Kamilli
1986, Open-File Report 86-588
The Baid al Jimalah tungsten deposit flat 25°09 N., long 42°41' E.) is a swarm of steeply dipping, sheeted, tungsten-bearing quartz veins. It is spatially, temporally, and genetically associated with a 569 Ma, highly differentiated, porphyritic granite that intrudes late Proterozoic, immature sandstones of the Murdama group. The bulk of the...
Geologic and grade-tonnage information on Tertiary epithermal precious- and base-metal vein districts associated with volcanic rocks
Dan L. Mosier, W. David Menzie, Frank J. Kleinhampl
1986, Bulletin 1666
Data on grades, tonnages, and geology of selected Tertiary epithermal precious- and base-metal vein districts associated with volcanic rocks were tabulated for ease of examination and comparison of characteristics between districts. There are 215 districts listed, with a cumulative tonnage of 709 million metric tons and average grades of...