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Dudley D. Rice

Publications and source records attributed to Dudley D. Rice.

28 records · Page 2Linked to original sources

Preliminary bedrock geologic map of part of the northern disturbed belt, Lewis and Clark, Teton, Pondera, Glacier, Flathead, and Powell Counties, Montana

The geologic map covers the Sawtooth and Lewis and Clark Ranges and part of the Flathead Range. It includes most of the disturbed belt in northwestern Moutana except the area east of the northern Rocky Mountains and the norhtern and southern parts of the belt. Most data are from an unpublished map of the Bob Marshall Wilderness and of the many proposed additions to the Wilderness. Strike and dip symbols are omitted from the map, and all contacts are shown in solid lines, alhough locally they are inferred beneath a Quaternary cover. Future studies will complete mapping of the northern disturbed belt in Montana.

Montana↗

Origin and significance of natural gases of Montana

About two years ago, I was assigned to a project to evaluate the hydrocarbon potential of the Cretaceous system of the northern Rocky Mountains; namely, in Montana, North Dakota, and South Dakota. I had no problem identifying potential traps; both structural and stratigraphic, but recognized the fact that most of the production from the Cretaceous in Montana is natural gas. More important, this production is from relatively shallow depths, often less than 2,000 feet. I realized that not only stratigraphy and structure, but also the origin, migration, and accumulation of hydrocarbons must be fully understood for effective exploration of new resources in the northern Rocky Mountains and elsewhere.

Montana↗