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Radiometric traverse along the Yukon River from Fort Yukon to Ruby, Alaska, 1949
In 1949, a radiometric traverse was made of rocks exposed along the banks of and near the Yukon River about Fort Yukon to Ruby, Alaska. Granitic rocks of Tertiary age and of Devonian or Carboniferous age and sandstone beds of Cretaceous age gave the highest readings obtained in the field. Other rock types examined were greenstone of Devonian or Carboniferous age and metamorphic rocks of Devonian and pre-Devonian age, sedimentary rocks, and liginite of Tertiary age, and alluvial deposits of Quaternary age. The most radioactive sample, from Melozitna River canyon, contained only 0.017 percent equivalent uranium.
Airborne radioactivity surveys in the Mojave Desert region, Kern, Riverside, and San Bernardino Counties, California
Airborne radioactivity surveys in the Mojave Desert region Kern, Riverside, and Bernardino counties were made in five areas recommended as favorable for the occurrence of radioactive raw materials: (1) Rock Corral area, San Bernardino County. (2) Searles Station area, Kern county. (3) Soledad area, Kern County. (4) White Tank area, Riverside and San Bernardino counties. (5) Harvard Hills area, San Bernardino County. Anomalous radiation was detected in all but the Harvard Hills area. The radioactivity anomalies detected in the Rock Corral area are of the greatest amplitude yet recorded by the airborne equipment over natural sources. The activity is apparently attributable to the thorium-beating mineral associated with roof pendants of crystalline metamorphic rocks in a granitic intrusive. In the Searles Station, Soledad, and White Tank area, several radioactivity anomalies of medium amplitude were recorded, suggesting possible local concentrations of radioactive minerals.
Photogeological map, Stinking Spring Creek-13 Quadrangle, Emery County, Utah
No abstract available.
Dinne Mesa NW, preliminary geologic map of part of the Carrizo Mountains area, northeastern Arizona
No abstract available.
Dinne Mesa SW, preliminary geologic map of part of the Carrizo Moutains area, northeastern Arizona
No abstract available.
Los Gigantes NW, preliminary geologic map of part of the Carrizo mountains area, northeastern Arizona
No abstract available.
Los Gigantes NE, preliminary geologic map of part of the Carrizo Mountains area, northeastern Arizona
No abstract available.
Red Rock Valley NW, preliminary geologic map of part of the Carrizo Mountains area, northeastern Arizona
No abstract available.