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Page 4046, results 101126 - 101150

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Not all publications have extents, not all extents are completely accurate
Water resources data collected during water year 1988 at selected James River basin sites in North Dakota and South Dakota
Steven K. Sando, Kevin Guttormson, T.A. Gleich
1990, Open-File Report 90-101
Operation of the proposed Garrison Diversion Unit will supply water from the Missouri River in North Dakota to the upstream part of the James River basin. The U.S. Bureau of Reclamation initiated a monitoring program in 1984 to aid in determining whether the potential impacts resulting from Garrison Diversion Unit...
Documentation of model input and output values for the geohydrology and mathematical simulation of the Pajaro Valley aquifer system, Santa Cruz and Monterey counties, California
H. T. Mitten, C.J. Londquist
1990, Open-File Report 90-196
This report contains listings of the model input and sample output for simulation of the Pajaro Valley aquifer system, Santa Cruz and Monterey Counties, California. The files are contained on a 5 1/4-inch diskette. The decompressed files require approximately 5.3 megabytes of disk space on an IBM-compatible microcomputer. (USGS)...
Importance of return flow as a component of water use
L. C. Trotta, M.S. Horn
1990, Open-File Report 90-197
Understanding the relation between the hydrologjc cycle and water use is important for effective water-resources management. The hydrologic cycle is the natural pathway of water from evaporation to precipitation to infiltration or runoff and to storage from which evaporation can again occur. The science of water use is the study...
Simulation of ground-water flow in the Mississippi River Valley alluvial aquifer in eastern Arkansas
G.L. Mahon, A. H. Ludwig
1990, Water-Resources Investigations Report 89-4145
The U.S Geological Survey has developed and calibrated a digital model of the flow system in the alluvial aquifer as part of a multiagency Eastern Arkansas Region Comprehensive Study being conducted by the U. S. Army Corps of Engineers. Other cooperating agencies include the U.S. Soil Conservation Service, the Arkansas...
Geology of the Bir Nifazi Quadrangle, Kingdom of Saudi Arabia
James E. Quick, Paul S. Bosch
1990, Open-File Report 90-301
The Bi'r Nifazi quadrangle is located in the north-central part of the Precambrian shield of Saudi Arabia between lat 24° 45' and 25° 00' N. and long 41° 15' and 41° 30' E. Approximately 75 percent of the area is underlain by large plutons that range in composition from gabbro...
An evaluation and geochemical survey of the Farah Garan East Prospect, Southeast Asir, Kingdom of Saudi Arabia
Arthur A. Bookstrom, Mohamed El Komi, Ralph P. Christian, Maher A. Bazzari
1990, Open-File Report 90-421
The Farah Garan East prospect (MODS 4886) is located in the southeastern part of the Precambrian Arabian Shield of Saudi Arabia, about 15 km east-northeast of Zahran Al Janub and 1 km northeast of the ancient mines at Farah Garan. Ore minerals at the Farah Garan East prospect are pyrite,...
Reconnaissance geochemical exploration for gold in the Ad Darb area, Kingdom of Saudi Arabia
R.M. Samater, R.P. Christian, P.R. Johnson, A. A. Bookstrom
1990, Open-File Report 90-285
Geochemical data were analyzed for 244 wadi-sediment samples in an attempt to locate gold exploration targets in late Proterozoic metasedimentary and metavolcanic rocks in the Ad Darb area of the southern Arabian Shield. The target was gold mineralization in high-alumina alteration zones of the type that occurs in the Carolina...
Stratigraphy of the Mesaverde Group in the central and eastern greater Green River basin, Wyoming, Colorado, and Utah
Henry W. Roehler
1990, Professional Paper 1508
This paper establishes a stratigraphic framework for the Mesaverde Group, nearly 5,000 ft thick, in the central and eastern greater Green River basin based on data from measured outcrop sections and drill holes. Stratigraphic correlations are supported by ammonite zonation. No new stratigraphic names are introduced, and no nomenclature problems...