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Filtering by: Subject Geology -- Oregon -- Deschutes County

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
Geology of part of the northern half of the Bend quadrangle, Jefferson and Deschutes counties, Oregon

Creator:

Stensland, Donald Eugene

Abstract:

The mapped area is part of the middle Deschutes Basin of central Oregon, which lies in the northwestern corner of the High Lava Plains physiographic province, between the Cascade and Ochoco Mountains. It is underlain by Cenozoic lavas, tuffs and sediments of continental origin. The oldest rocks in the sequence...

Resource Type:

Masters Thesis