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Page 6734, results 168326 - 168350

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology of the salt deposits and the salt industry of northern Chile
George Edward Ericksen
1963, Open-File Report 63-31
The study of the salt deposits of northern Chile is a cooperative project of the Institute de Investigaciones Geologicas (IIG) of Chile and the United Nations Special Fund and is part of a mineral resources survey, undertaken by these two organizations, of selected regions of northern Chile, during 1960-1963. The...
Ground-water geology and pump irrigation in Frenchman Creek Basin above Palisade, Nebraska
W. D. E. Cardwell, Edward D. Jenkins
1963, Water Supply Paper 1577
This report describes the geography, geology, and ground-water resources of that part of the Frenchman Creek basin upstream from Palisade, Nebr., an area of about 4,900 square miles. The basin includes all of Phillips County, Colo., and Chase County, Nebr., and parts of Logan, Sedgwick, Washington, and Yuma Counties, Colo.,...
Niobium and tantalum in the United States, exclusive of Alaska and Hawaii
Raymond Laurence Parker
1963, Mineral Investigations Resource Map 36
The accompanying map shows the location of the principal known deposits of niobium and tantalum minerals in the United States, exclusive of Alaska and Hawaii. Symbols of different shapes are used to depict deposits of different geologic types, and large symbols denote deposits with a record of production. Small symbols...
Preliminary interpretation of an aeromagnetic survey in central and southwestern Iowa
John Richard Henderson, Isidore Zietz, Walter S. White
1963, Open-File Report 63-46
The U. S. Geological Survey made a 10,000 square mile aeromagnetic survey of central and southwestern Iowa in mid-1962. This work, done in cooperation with the Iowa Geological Survey, completed magnetic coverage for the approximately 220 mile section of the "midcontinent gravity high" located in Iowa....
High-alumina kaolinitic clay in the United States, exclusive of Alaska and Hawaii
Helen R. Mark
1963, Mineral Investigations Resource Map 37
The general distribution of high-alumina kaolinitic clay deposits in the United States (exclusive of Alaska and Hawaii) is shown on the accompanying map. The locations of mines, pits, and prospects are shown by appropriate symbols. Certain clay-bearing areas are shown by patterns that designate the geologic age of the deposits....