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Page 1376, results 34376 - 34400

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Experimental drill hole logging in potash deposits of the Carlsbad district, New Mexico
C.L. Jones, C. Gilbert Bowles, Kenneth Granville Bell
1960, Open-File Report 60-84
Experimental logging of holes drilled through potash deposits in the Carlsbad district, southeastern New Mexico, demonstrate the considerable utility of gamma-ray, neutron, and electrical resistivity logging in the search for and identification of mineable deposits of sylvite and langbeinite. Such deposits are strongly radioactive with both gamma-ray and neutron well...
Geology and ore deposits of the Klondike Ridge area, Colorado
John David Vogel
1960, Open-File Report 60-145
The region described in this report is in the northeastern part of the Colorado Plateau and is transitional between two major structural elements. The western part is typical of the salt anticline region of the Plateau, but the eastern part has features which reflect movements in the nearby San Juan...
Pumice and pozzolan deposits in the Lesser Antilles
Edwin Butt Eckel
1960, Open-File Report 60-48
Early in 1959 the International Cooperation Administration requested the U. S. Geological Survey to assign a geologist to a reconnaissance study of the pumice and pozzolan deposits of the Lesser Antilles. As a result, I made brief field examinations of all the reported deposits during the period May 25 -...
Petrography and petrology of Smoky Butte intrusives, Garfield County, Montana
Robert E. Matson
1960, Open-File Report 60-96
The Smoky Butte intrusives are located in T. 18 N., R. 36 E. Garfield County, Montana on the extreme eastern edge of the petrographic province of Central Montana. They consist of dikes and plugs arranged in linear, en-echelon pattern with a northeast trend and intrude the Tullock member (Paleocene age)...