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Publication Extents

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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...
Preliminary report on the Nelson and Radovan copper prospects, Nizina district, Alaska
C.J. Sainsbury
1952, Open-File Report 52-134
Renewed copper exploration by Alaska Copper Mines, Incorporated, at the Nelson and Radovan prospects, Nizina district, Alaska, led the Geological Survey in 1951 to map in detail the Nelson fault block, and to re-examine the old workings. In addition, two new prospects were studied. The Nelson fault block is cut by...
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...