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Page 6282, results 157026 - 157050

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geologic map of bastnaesite deposits, Birthday claims, San Bernardino County, California
W. N. Sharp, L.C. Pray
1952, Miscellaneous Field Studies Map 4
In April 1949 a deposit containing considerable quantities of the rare mineral bastnaesite - the fluorocarbonate of cerium, lanthanum, and other rare earths - was discovered near Mountain Pass, San Bernardino County, Calif.  Small quantities of bastnaesite have been found in several places in the United States, but this area...
Geologic map of the Barnes Hill talc prospect, Waterbury, Vermont
A.H. Chidester, G. W. Stewart, D.C. Morris
1952, Miscellaneous Field Studies Map 7
The Barnes Hill talc prospect is in northeastern Waterbury township, Washington County, Vermont, about 2.2 miles N. 35° E. of the road triangle at Waterbury Center.  The deposit occurs in a body of ultramafic rock that crops out between the altitudes of 1,150 and 1,190 feet above sea level, near...
Phosphate deposits of the Concepcion del Oro district, Zacatecas, Mexico
Cleaves Lincoln Rogers, Salvador Ulloa, Eugenio Tavera
1952, Open-File Report 52-131
The two small Mexican plants that are currently producing acid-phosphate fertilizer from phosphate rock have a productive capacity of about 45,000 metric tons annually. The larger plant processes pebble phosphate imported from Florida, while the other is utilizing material from the small, widely scattered phosphate deposits of Nuevo Leon. Large-scale...
Reconnaissance of radioactive rock of the Hudson Valley and Adirondack Mountains, New York
Perry F. Narten, Francis A. McKeown
1952, Trace Elements Investigations 70
In August 1949 a carborne reconnaissance for radioactivity was made along 3,750 miles of road in the Paleozoic rocks of the Hudson Valley and the pre-Cambrian rocks of the Adirondack Mountains in eastern and central New York state. In the Paleozoic rocks the average radioactivity of the most strongly radioactive rocks...