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Page 6391, results 159751 - 159775

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Test of airborne fluorometer over land surfaces and geologic materials
George Eimert Stoertz, William R. Hemphill
1970, Open-File Report 70-316
Response of an experimental Fraunhofer line discriminator(FLD) to a wide range of surficial deposits common in deserts and semideserts was tested in the laboratory and from an 1-1-19 helicopter. By design the instrument sensed radiation from the ground specifically at the sodium D2 Fraunhofer line (5890 angstroms). It is capable...
Results of geochemical sampling in the western Clearwater Mountains, Alaska
Thomas E. Smith
1970, Open-File Report 70-310
Two centers of gold mineralization in the Clearwater Mountains have been identified during a recent geochemical sampling program in the Healy A-1, B-1 quadrangles, Alaska. Both the Timberline Creek center and the Black Creek center are located near the same E-W trending fault system.Sites of structural weakness along the zone...
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...
Preliminary geologic map of the Glen Ullin quadrangle, Morton County, North Dakota
C.S. Venable Barclay
1970, Open-File Report 70-17
The Glen Ullin quadrangle occupies approximately 51 square miles inwestern Morton County, southwestern North Dakota. Glen Ullin, a small agricultural community on the Northern Pacific Railroad, about 52 miles west of Bismarck, is near the center of the quadrangle (fig. 1).The Glen Ullin quadrangle is one of a group of...
Remote detection of geochemical soil anomalies
Frank Cogswell Canney
1970, Open-File Report 70-54
This paper describes a preliminary experiment that was made to compare the spectral reflectance from trees growing in soil over a mineral deposit with reflectance from trees of the same species growing in a nearby unmineralized area. Although the measurements were made on a relatively small number of trees, some...