Date of Award
Bachelor of Science in Geological Engineering
Dr. E. S. Perry
Dr. Alvin Hanson
The exact geologic age of the Jefferson limestone in Montana has not been definitely determined, other than it is probably of upper, but possibly in part of middle Devonian age. Although not of immediate or apparent economic importance, the determination of the exact age of the Jefferson limestone may be of much value in connection with the discoveries of large quantities of oil in Devonian strata in the northern Great Plains and, in particular, with the extensive deep drilling in northeastern Montana which is anticipated during the summer of 1951.
Eymann, James L., "Faunal Studies of the Lower Jefferson Limestones" (1951). Bachelors Theses and Reports, 1928 - 1970. 342.
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