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Page 5762, results 144026 - 144050

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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...
Petroleum possibilities of the Yukon-Koyukuk Province, Alaska
William Wallace Patton Jr.
1970, Open-File Report 70-257
The recent discovery of major oil resources on Alaska's North Slope has rekindled interest in the petroleum possibilities of the Yukon-Koyukuk province, a vast tract of Cretaceous rocks stretching along the west coast of Alaska from the Brooks Range to the Yukon delta. Attention was first focused on this region...
Late Miocene nonmarine diatoms from the Kilgore area, Cherry County, Nebraska
G.W. Andrews
1970, Professional Paper 683-A
The Valentine Formation of A. L. Lugn, which is of late Miocene and early Pliocene age, contains diatomaceous and plant-bearing sediments at a locality on the north bluff of the Niobrara River, about 10 miles south of Kilgore, Cherry County, Nebr. The fossil flora has been studied by H. D....
Analyses of rock and stream-sediment samples from the Sumdum A-3 Quadrangle, Alaska
Allen L. Clark, David A. Brew, Donald A. Grybeck, Raymond Wehr
1970, Open-File Report 70-71
Analytical data for 138 rock and 71 stream-sediment samples from the Sumdum A-3, 1:63,360 scale quadrangle are presented in this report, together with a statistical treatment of the data. The samples were collected in 1969 as part of the Heavy Metals Program of the U.S. Geological Survey.The most comprehensive discussion...
Preliminary investigation of cement materials in the Taif area, Saudi Arabia
Conrad Martin
1970, Open-File Report 70-216
A preliminary investigation of possible sources of cement rock in the Taft area was made during the latter part of August 1968. Adequate deposits of limestone, clay, quartz conglomerate and sandstone, and pisolitic iron ore, yet no gypsum, were located to support a Cement plant should it prove feasible to...
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...
Geological Survey research 1970, Chapter C
Water Resources Division, U.S. Geological Survey
1970, Professional Paper 700-C
This collection of 42 short papers is the second published chapter of "Geological Survey Research 1970." The papers report on scientific and economic results of current work by 1nembers of the Conservation, Geologic, Topographic, and Water Resources Divisions of the U.S. Geological Survey.Chapter A, to be published later in the...
Compilation of data for Michigan lakes
J. B. Miller, Ted Thompson
1970, Open-File Report 70-227
Michigan's more than 11,000 lakes are a valuable resource. Primarily, they are used for recreation but many have potential for industrial use and for water supply. Lakes have water surfaces ·that expand and decrease in area, and levels that rise and fall. Records of lakes levels show that lake stages...