Date of Award


Degree Type

Bachelors Thesis

Degree Name

Bachelor of Science in Geological Engineering



First Advisor

Dr. E. S. Perry


Cretaceous sediments in Montana record events during a period of unusual geologic interest. After a long period of extensive submergence of the area during Jurassic time, came a period of varying continental and marine deposition with consequent variations in the types of sediments laid down. A study of these variations, their extent, and their cause has been the primary object of this thesis.