Earth and Planetary Sciences ETDs

David W. Love

Publication Date

7-22-1971

Abstract

The Rammel Mountain area, on the west side of the Teton Range, Wyoming, includes Precambrian metamorphic and igneous rocks; Paleozoic sandstone, shale, dolomite and limestone; and Cenozoic conglomerate, agglomerate and breccia, ash-flow tuffs and glacial deposits.

The Precambrian layered gneiss, granitic gneiss and migmatite have undergone at least two episodes of deformation and metamorphism in the sillimanite-cordierite-muscovite-almandine subfacies of the Abukuma-type facies series prior to the emplacement of quartz monzonite. Dia-base dikes, quartz-epidote and epidote veins transect these earlier rocks.

The Cambrian-Mississippian shelf-facies rocks were folded, faulted and eroded to a plain in Late Cretaceous time and were buried by Paleocene quartzite conglomerate containing unusual polished pebbles. Andesitic volcaniclastic debris buried the northern part of the area during the Middle Eocene. Two rhyolitic ash-flow tuffs engulfed the area on the edge of the Teton uplift in the early Pleistocene and were sculptured by several glacial advances.

Degree Name

Earth and Planetary Sciences

Level of Degree

Masters

Department Name

Department of Earth and Planetary Sciences

First Committee Member (Chair)

Lee A. Woodward

Second Committee Member

J. Paul Fitzsimmons

Third Committee Member

Sherman Alexander Wengerd

Language

English

Document Type

Thesis

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