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Page 5999, results 149951 - 149975

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Geology and ground-water conditions in the southern part of the Camp Ripley Military Reservation, Morrison County, Minnesota
J.R. Jones, P.D. Akin, Robert Schneider
1963, Water Supply Paper 1669-A
The southern part of the Camp Ripley Military Reservation, in central Minnesota, includes an area of about 20 square miles. This investigation was conducted to assist the U.S. National Guard Bureau in locating adequate water supplies for expansion and standby needs. Bedrock in the area consists of Precambrian phyllite which is...
An exploration possibility at the Arizona mine, Pershing County, Nevada
R. E. Wallace, Donald Bruce Tatlock
1963, Open-File Report 63-130
At the Arizona mine in Pershing County, Nevada, a block of ground that may contain significant bodies of silver ore at a shallow depth .appears to have been very inadequately explored during early mining activity. The block approximates in arcal extent...
Investigations of the principal fluorspar districts of Mexico
Ralph Erskine Van Alstine, Samuel Estrada, Ernesto de la Garza
1963, Open-File Report 63-124
As a result of the increasing need for fluorspar, especially in North America, the Mexican fluorspar industry expanded greatly is the 8-year period, 1952-1960. Since 1956, Mexico has been the world's largest producer and exporter of this commodity. From 1956 through 1959 Maltice imported about 90 percent of the fluorspar...
Refraction seismic studies in the Miami River, Whitewater River, and Mill Creek valleys, Hamilton and Butler Counties, Ohio
Joel S. Watkins
1963, Open-File Report 63-133
Between September 17 and November 9, 1962, the U.S. Geological Survey, in cooperation with Ohio Division of Water, Miami Conservancy District, and c,ty of Cincinnati, Ohio, co.,:ducted a refraction seismic study in Hamilton and Butler Counties, southwest Ohio. The area lies between Hamilton, Ohio, and the Ohio River and includes...
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...