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Filtering by: Creator Finney, Mark A. Academic Affiliation Geology File Format image/jpeg

Geology of the southernmost Deschutes basin, Tumalo quadrangle, Deschutes County, Oregon

Creator:

McDannel, Angela K.

Abstract:

The Tumalo quadrangle lies approximately 30 kilometers behind the Cascade volcanic arc and marks the southernmost extent of continuously exposed Deschutes Formation rocks. Deschutes Formation rocks in the Tumalo quadrangle include late Miocene volcaniclastic sedimentary rocks, ignimbrites and lapillistones, and late Miocene to early Pliocene basalts and basaltic andesites. Volcaniclastic...

Resource Type:

Masters Thesis
Biostratigraphy, depositional environments, and paleogeography of Lower and Middle Devonian rocks, Death Valley area, California

Creator:

Heironimus, Thurman L.

Abstract:

During Early and Middle Devonian time, the main part of the Death Valley area was characterized by shallow marine shelf position. In the extreme western part, deposition took place in carbonate slope environments. Early and Middle Devonian eastern platform dolomites, represented by uppermost Hidden Valley Dolomite and lower Lost Burro...

Resource Type:

Masters Thesis
Stratigraphy, petrology and provenance of the Cretaceous Gable Creek Formation, Wheeler County, Oregon

Creator:

Little, Stephen W.

Abstract:

The Mitchell inlier in north-central Oregon contains the largest exposure of Cretaceous marine sedimentary rocks in this region. Nearly 9,000 ft of Albian-Cenamanian rocks are exposed along the flanks of the Mitchell anticline. The Cretaceous section rests unconformably overlain by Tertiary volcanic rocks. The Cretaceous rocks have previously been divided...

Resource Type:

Masters Thesis