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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...
Records of selected wells and lithologic logs of test holes, Hendry County and adjacent areas, Florida
John E. Fish, Carmen R. Causaras, T.H. O’Donnell
1983, Open-File Report 83-134
To provide water-resource information for Hendry County, Florida , geologic test holes were drilled in the surficial aquifer, and an extensive inventory was compiled of wells in the surficial aquifer and deep artesian aquifers. This report provides: (1) records for 788 selected wells and test holes including location , construction,...
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...
Mineral resource potential map of the Benton Range Roadless Area, Mono County, California
James L. Donahoe, Edwin D. McKee, Richard L. Rains, Donald J. Barnes, Harry W. Campbell, David K. Denton Jr., Stephen R. Iverson, Rodney E. Jeske, Scott A. Stebbins
1983, Miscellaneous Field Studies Map 1317-C
Tungsten-bearing rocks in the Benton Range Roadless Area occur in tactite lenses within the Paleozoic metasedimentary units that surround and are intruded by Triassic granodiorite of the Benton Range. High anomalous tungsten values were found in the southern part of the study area. Quartz-vein deposits with copper, lead, zinc, and...
The Volcano Hazards Program; objectives and long-range plans
Roy A. Bailey, P.R. Beauchemin, F.P. Kapinos, D.W. Klick
1983, Open-File Report 83-400
Volcanoes and the products of volcanoes have a much greater impact on people and society than is generally perceived. Although commonly destructive, volcanic eruptions can be spectacularly beautiful and, more importantly, they have produced the very air we breathe, the water we drink, and our most fertile soils. Volcanoes also...
Computer program modifications of Open-file report 82-1065; a comprehensive system for interpreting seismic-refraction and arrival-time data using interactive computer methods
Hans D. Ackermann, Leroy W. Pankratz, Danny A. Dansereau
1983, Open-File Report 83-604
The computer programs published in Open-File Report 82-1065, A comprehensive system for interpreting seismic-refraction arrival-time data using interactive computer methods (Ackermann, Pankratz, and Dansereau, 1982), have been modified to run on a mini-computer. The new version uses approximately 1/10 of the memory of the initial version, is more efficient and...
Analytical results for 56 rock, 46 stream-sediment and soil, and 22 panned-concentrate samples from the Welcome Creek Wilderness Study Area, Granite County, Montana
W. L. Campbell, G. K. Lee, J.C. Antweiler, R.T. Hopkins
1983, Open-File Report 83-829
Fifty-six rock, 46 stream-sediment, and 22 panned-concentrate samples were collected from the Welcome Creek Wilderness, Granite County, Montana, during the summers of 1979 and 1980. All samples were analyzed for 31 elements by a six-step semiquantitative emission spectrographic method (Grimes and Marranzino, 1968). All panned concentrate and other selected samples...
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...
Water-level records for the northern High Plains of Colorado, 1979-83
Joe L. Blattner, Bruce D. Rasmuson
1983, Open-File Report 83-253
Water-level measurements were made in 638 wells in the winter of 1982-83, in the northern High Plains of Colorado. The water-level measurements for the winter of 1982-83 and for four preceding winters are given in a table, which also contains the location, depth, land-surface elevation and the aquifer for each...