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Page 4728, results 118176 - 118200

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An Evaluation of Seismic Reflection Studies in the Yucca Mountain Area, Nevada Test Site
Thomas F. McGovern, L. W. Introduction by Pankratz, H.D. Ackermann
1983, Open-File Report 83-912
As part of a total geophysical evaluation of Yucca Mountain for use as a Nuclear Waste Repository the seismic reflection technique has been applied. This study has been conducted to analyze the historical and technical efforts which have been used by three geophysical contractors employing a wide variety of techniques...
Precision gravity networks at Lassen Peak and Mount Shasta, California
Robert C. Jachens, Daniel Dzurisin, W.P. Elder, R. W. Saltus
1983, Open-File Report 83-192
Reoccupiable precision gravity networks for the purpose of monitoring volcanic activity were established in the vicinity of Lassen Peak and Mt. Shasta. Base-line measurements were made during the summer of 1981, nearly coincident in time with other base-line geodetic measurements. The gravity surveys yielded gravity values at network stations relative...
Geochemistry and economic potential of massive sulfide deposits from the eastern Pacific Ocean
James L. Bischoff, R.J. Rosenbauer, P. J. Aruscavage, P. A. Baedecker, J.G. Crock
1983, Open-File Report 83-324
Bulk chemical analyses are performed for major and minor elements using a variety of techniques on a suite of 9 samples of sea floor massive sulfide deposits from 21?N EPR, Juan de Fuca Ridge and Galapagos Rift. Results indicate that deposits at 21?N and Juan de Fuca are very similar...
Crustal structure of southwestern Saudi Arabia
M. E. Gettings, H. R. Blank, W. D. Mooney, J. H. Healy
1983, Open-File Report 83-638
The southwestern Arabian Shield is composed of uplifted Proterozoic metamorphic and plutonic rocks. The Shield is bordered on the southwest by Cenozoic sedimentary and igneous rocks of the Red Sea paar and on the east by the Arabian Platform, an area of basin sedimentation throughout Phanerozoic time. The Shield appears...
Geohydrologic data for test well UE-25bH, Nevada Test Site, Nye County, Nevada
D.H. Lobmeyer, M.S. Whitfield, R.G. Lahoud, Laura Bruckheimer
1983, Open-File Report 83-855
Data were collected to determine the hydraulic characteristics of rocks penetrated in test well UE-25b number 1. This well is one of a series of test wells drilled in and near the southwestern part of the Nevada Test Site in a program conducted in cooperation with the U.S. Department of...
Data supplement to: Quality of coal mine drainage to Washington, 1975-77
Louis A. Fuste, F. A. Packard, M. O. Fretwell, D.P. Garland
1983, Open-File Report 83-205
From December 1975 to September 1977 the U.S. Geological Survey studied coal mine drainage in western Washington to 1) characterize the water quality of drainage from abandoned mines in the 11 coal-bearing areas of the State; 2) examine the water quality effects on a stream receiving drainage from an abandoned...
Habitat Suitability Index Models: Lewis' woodpecker
Patrick J. Sousa
1983, FWS/OBS 82/10.32
This document is part of the Habitat Suitability Index (HSI) Model Series (FWS/OBS-82/10), which provides habitat information useful for impact assessment and habitat management. Several types of habitat i nformat i on are provided. The Habitat Use Information Section is largely constrained to those data that can be used to...
Preliminary assessment of in-situ geomechanical characteristics in drill hole USW G-1, Yucca Mountain, Nevada
William L. Ellis, Henri S. Swolfs
1983, Open-File Report 83-401
Observations made during drilling and subsequent testing of the USW G-1 drill hole, Yucca Mountain, Nevada, provide qualitative insights into the in- situ geomechanical characteristics of the layered tuff units penetrated by the hole. Substantial drilling-fluid losses, and the occurrence of drilling-induced fracturing, are understandable in terms of the low,...
Effects of sanitary sewers on ground-water levels and streams in Nassau and Suffolk Counties, New York, part 1: Geohydrology, modeling strategy, and regional evaluation
T. E. Reilly, H. T. Buxton, O.L. Franke, R. L. Wait
1983, Water-Resources Investigations Report 82-4045
A computer simulation of Long Island 's regional groundwater system has been used to evaluate the effects that new-installed sewers will have on ground-water levels. Results indicate maximum water-table decliners of as much as up to 18 feet in central Nassau County and about 9 feet in Suffolk County. Total...
Reconnaissance of the hydrothermal resources of Utah
F. Eugene Rush
1983, Professional Paper 1044-H
Geologic factors in the Basin and Range province in Utah are more favorable for the occurrence of geothermal resources than in other areas on the Colorado Plateaus or in the Middle Rocky Mountains. These geologic factors are principally crustal extension and crustal thinning during the last 17 million years. Basalts...
Peralkaline and peraluminous granites and related mineral deposits of the Arabian Shield, Kingdom of Saudi Arabia
James E. Elliott
1983, Open-File Report 83-389
In the Precambrian Arabian Shield, granitoid plutonic rocks are widespread and range in age from 800 to 550 Ma old; but the mineral-resource potential associated with these plutonic rocks is restricted mainly to the younger, postorogenic granites. Two granite types of current economic interest are zirconium- niobium-enriched per alkaline granites...
Data from the surface-water hydrologic investigations of the Hay Creek Study Area, Montana, and the West Branch Antelope Creek Study Area, North Dakota, October 1976 through April 1982
Douglas G. Emerson, Steven W. Norbeck, Kelvin L. Boespflug
1983, Open-File Report 83-136
Data are provided for the Hay Creek study area near Wibaux, Mont., and the West Branch Antelope Creek study area near Beulah, N. Dak. The report contains data on the following: Air temperature, relative humidity, wind direction, wind run, solar radiation, precipitation, soil temperature, snowpack temperature, snowpack density and water...