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Page 6358, results 158926 - 158950

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Geology and paleontology of the Santa Maria district, California
W. P. Woodring, M. N. Bramlette
1950, Professional Paper 222
Stratigraphy, paleontology, and geologic history.-A basement' consisting of igneous rocks of the Jurassic(?) Franciscan formation and sediments of the Upper Jurassic Knoxville formation, and formations of Tertiary and Quaternary age are exposed in the Santa Maria district. The outcrop section, exclusive of the Franciscan, has a maximum thickness of about...
A glossary of uranium- and thorium-bearing minerals
Judith Weiss Frondel, Michael Fleischer
1950, Circular 74
During 1980, an estimated 121 million gallons of water per day was pumped in a 26-county area in east-central Georgia from sand aquifers of Paleocene and Late Cretaceous age. Maximum withdrawals were at the kaolin mining and processing centers in Twiggs, Wilkinson, and Washington Counties, where water levels have declined...
Coal resources of the United States, A progress report, November 1, 1950
Paul Averitt, Louise R. Berryhill
1950, Circular 94
Interest in the quantity and quality of the coal reserves of the United States has increased greatly since the end of World War II, principally because of the growing realization that the ultimate reserves of petroleum and natural gas, although largely undefined, still. have finite limits. With the greatly increased...