Date of Award
Bachelor of Science in Geological Engineering
Doctor O. D. Blake
Correlation charts made from electric log data show the relationship of Ordovician and Silurian strata in eastern Montana. The Silurian sediments terminate westward in eastern Montana, but the Ordovician sediments are present westward into central Montana.
Lanphere, Marvin A., "Correlation of Ordovician and Silurian Formations of Eastern Montana" (1955). Bachelors Theses and Reports, 1928 - 1970. 455.