Magnetometer survey in the Jebel Idsas area, Saudi Arabia
W. E. Davis, R. V. Allen, M.N. Akhrass
1970, Open-File Report 70-97
A ground magnetometer investigation in: the southern part of the Jebel Idsas magnetite area, Kingdom of Saudi Arabia, was done in compliance to requests by D. R. Mabey and F. Keller to delineate the source of the aeromagnetic total-intensity anomaly that was interpreted as being the expression of a commercial...
Land and water for tomorrow
Raymond L. Nace
1970, Open-File Report 70-241
No abstract available....
Various aspects of uranium ore rolls in the United States
Elbert Nelson Harshman
1970, Open-File Report 70-154
About 40 percent of the uranium ore reserves in the United States, minable at $8 per pound of contained U308, are in roll-type deposits in the State of Wyoming. The host rocks are arkosic sandstones, deposited in intermontane basins under fluvial conditions, and derived from the granitic cores of mountain...
Rock analyses around the Copper Canyon open pit mine, Lander County, Nevada
Ted G. Theodore
1970, Open-File Report 70-325
No abstract available....
Summary of trip during May-June 1964 to the southern Tuwayq quadrangle, Saudi Arabia
William C. Overstreet, Jesse W. Whitlow
1970, Open-File Report 70-249
No abstract available....
Qualitative analysis of airborne magnetometer data: The Arabian Shield, Kingdom of Saudi Arabia
Donald H. Hase
1970, Open-File Report 70-155
A qualitative analysis and interpretation of magnetic data obtained from airborne magnetometer and scintillometer surveys of the Precambrian Arabian Shield, Kingdom of Saudi Arabia, show that some rock units and geologic features exhibit characteristic magnetic expressions and anomalies. Circular to elliptical anomalies are attributed to younger intrusive or less commonly...
An appraisal of the Jabal Idsas magnetite mineralization based on diamond drill hole N40A
Conrad Martin
1970, Open-File Report 70-215
Diamond Drill Bole N40, intended to test the magnetite mineralization at Jabal Idsas, was aborted because of technical difficulties and a new hole, N4OA, was drilled at the same site in February of 1968 to an inclined down-the-hole depth of 445.7 meters. Disseminated magnetite and locally massive lenses, veins, and...
Feasibility of surveying pesticide coverage with airborne fluorometer
George Eimert Stoertz, William R. Hemphill
1970, Open-File Report 70-315
Response of a Fraunhofer line discriminator (FLD) to varying distributions of granulated corncobs stained with varying concentrations of Rhodamine WT dye was tested on the ground and from an H-19 helicopter. By design the instrument detected fluorescence specifically at the sodium D2 Fraunhofer line (5890 angstroms). The granules are used...
Preliminary geologic map of the Point Dume quadrangle, Los Angeles County, California
R. H. Campbell, B.H. Blackerby, R. F. Yerkes, J. E. Schoellhamer, P. W. Birkeland, C. M. Wentworth
1970, Open-File Report 70-53
Geological reconnaissance of the western part of the Wadi Ar Rimah quadrangle, Saudi Arabia
James W. Mytton
1970, Open-File Report 70-239
No abstract available....
Geologic map of the Daggett quadrangle, San Bernardino County, California
T. W. Dibblee Jr.
1970, IMAP 592
Satellite relay telemetry of seismic data in earthquake prediction and control, 1968 and 1969
W. H. Jackson, Jerry P. Eaton
1970, Open-File Report 70-173
This report describes the progress of the Satellite Telemetry Earthquake Monitoring Program during the period 1 July 1968 through 30 June 1969. This research was supported by the National Aeronautics and Space Administration under Contract No. R-09-020-011, Task No. 160-75-01-50-10.The project was initiated in FY 1968 to evaluate the applicability...
Geologic map of the Arvada quadrangle, Colorado
Robert M. Lindvall
1970, Open-File Report 70-198
Many of the engineering-geologic problems in the Arvada quadrangle are related to the unconsolidated surficial deposits, which mantle the bedrock to depths of as much as 40 or 50 feet. In this report most of the emphasis is placed on the map distribution of these materials and on a description...
Geologic setting of Merrill Lake and evaluation of volcanic hazards in the Kalama River valley near Mount St. Helens, Washington
Jack H. Hyde
1970, Open-File Report 70-169
Volcanic rocks and unconsolidated geologic deposits in the upper Kalama River valley were studied in order to determine the kind of catastrophic geologic events that might accompany a future eruption of Mount St. Helens. The chief purpose of the study was to appraise the potential geologic hazards at the site...
An hypothesis of the chemical environment of the Rand Goldfield, South Africa
W. Bradley Myers
1970, Open-File Report 70-238
No abstract available....
Geologic map of Tehachapi Quadrangle, Kern County, California
T. W. Dibblee Jr., G.P. Louke
1970, IMAP 607
Recommended geophysical investigations of mineral occurrences at Jabal Samran, Al Marasia, and Wutaileh
D.H. Hase, V. J. Flanigan, M.N. Akhrass
1970, Open-File Report 70-156
A familiarization and reconnaissance trip was made in the vicinity of Jabal Samran during 7-8 April 1968. The trip was suggested by E. Heaton and W. Liddicoat, Ministry of Petroleum and Mineral Resources for the purpose of inspecting the mineral occurrences at Jabal Samran, Al Marasia, and Wutaileh, and recommending...
Estimates of the mechanical properties of lunar surface using tracks and secondary impact craters produced by blocks and boulders
H. J. Moore
1970, Open-File Report 70-229
Estimates of bearing capacities of lunar surfaces using tracks and secondary impact craters produced by blocks and boulders shown in photographs taken by Lunar Orbiters II and III are the same order of magnitude as those reported by the Surveyor project, but they are generally less. Static analyses of 48 lunar...
Schmidt hammer test method for field determination of physical properties of zeolitized tuff
John R. Ege, Danny R. Miller, Walter Danilchik
1970, Open-File Report 70-117
The L-type Schmidt hammer is a hand-carried impact instrument that was originally designed and developed to test the compressive strength of concrete. When properly impacted against a stiff material the device measures the amount of rebound of a spring-loaded hammer, with the rebound of the hammer being directly proportional to...
Aeromagnetic map of the central Colorado Plateau, Utah, Colorado, and Arizona
Water Resources Division, U.S. Geological Survey
1970, Open-File Report 70-335
No abstract available....
The upper part of the Upper Triassic Chinle Formation and related rocks, southeastern Utah and adjacent areas
R. B. O'Sullivan
1970, Professional Paper 644-E
Economic evaluation of a marble deposit and a kyanite deposit northeast of Al Lith, southern Hijaz quadrangle, Kingdom of Saudi Arabia - Part I, Marble deposit on Wadi Minsah: Part II, Kyanite deposit near Wadi Ad Arj
David L. Gaskill
1970, Open-File Report 70-133
Nearly pure, white and gray banded calcite marble, 40 to 170 meters thick, crops out in three hogback ridges aggregating about 1200 meters in length, located 155 kilometers southeast of Jiddah. The ridges are aligned along a belt over 2.5 kilometers long. The marble is steeply inclined and folded between...
Geologic map of the Cummings Mountain Quadrangle, Kern County, California
T. W. Dibblee Jr., A.H. Warne
1970, IMAP 611
Bibliography of the Geology and Mineral Industry of Liberia and Adjacent Countries: Supplement 1
Donald H. Johnson, Richard W. White
1970, Open-File Report 70-175
Geology of Phosphate Deposits in the Sirhan-Turayf Basin, Kingdom of Saudi Arabia and Dry Beneficiation of Phosphate Ore from West Thaniyat, Saudi Arabia
Charles R. Meissner Jr., Abdullah Ankary, Tennessee Valley Authority
1970, Open-File Report 70-221
