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Page 4946, results 123626 - 123650

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Hydrologic data for urban studies in the Austin, Texas, metropolitan area, 1983
J.D. Gordon, D.L. Pate, M.E. Dorsey
1985, Open-File Report 85-172
Hydrologic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, and Houston. Studies have been completed in the Dallas, Fort Worth, and San Antonio areas. The Geological Survey, in cooperation with the Texas Department of Water Reources, began...
Reconnaissance geochemical exploration of the plutons of quartz monzonite and granite in the Jabal Lababa and Ar Rayth areas, southern Asir, Kingdom of Saudi Arabia
W.C. Overstreet, A.B. Assegaff, Mohammed Jambi, M.A. Hussain, G.I. Selner, J.J. Matzko
1985, Open-File Report 85-8
Geochemical reconnaissance for rare metals in plutons of albite-muscovite granite and quartz monzonite in the vicinity of Jabal Lababa disclosed positive geochemical anomalies for beryllium, tantalum, thorium, lanthanum, niobium, tin, yttrium, and zirconium. The low anomalous values for the rare metals in rocks and the short mechanical dispersion trains, seldom...
Preparation of polyethylene sacks for collection of precipitation samples for chemical analysis
L.J. Schroder, A.W. Bricker
1985, Water-Resources Investigations Report 85-4067
Polyethylene sacks are used to collect precipitation samples. Washing polyethylene with acetone, hexane, methanol, or nitric acid can change the adsorptive characteristics of the polyethylene. In this study, simulated precipitation at pH 4.5 was in contact with the polyethylene sacks for 21 days; subsamples were removed for chemical analysis at...
Selected methods for dissolved iron (II, III) and dissolved sulfide (-II) determinations in geothermal waters
D.V. Vivit, E. A. Jenne
1985, Water-Resources Investigations Report 85-4189
Dissolved sulfide (-II) and dissolved iron (II, III) were determined in geothermal well water samples collected at Cerro Prieto, Mexico. Most samples consisted of liquid and gas (two phases) at the instant of collection; and a subset of samples, referred to as ' flashed ' samples, consisted of pressurized steam...
Estimation of evaporation from Ned Wilson Lake, Flat Tops Wilderness Area, Colorado
N.E. Spahr, J.T. Turk
1985, Water-Resources Investigations Report 85-4244
As part of an effort to define the hydrology and water quality of Ned Wilson Lake, evaporation rates were estimated for the summer periods of 1983 and 1984. Mass-transfer and energy-budget techniques and the Morton model were used to estimate evaporation using data collected at the lake and data collected...