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Filtering by: Alternative title ssim Report no. 1343-A Degree Field Geology File Format image/jpeg

The Deschutes Formation-- High Cascade transition in the Whitewater River area, Jefferson County, Oregon

Creator:

Yogodzinski, Gene M.

Abstract:

The Whitewater River area is located directly east of Mt. Jefferson in the Cascades of central Oregon. Approximately 90 mi2 (230 km2) were mapped (scale 1/24,000) and four new K-Ar ages and 151 major element analyses were obtained in a study of the stratigraphic and magmatic transition from the Miocene...

Resource Type:

Masters Thesis
Geology of the Fly Creek quadrangle and the north half of Round Butte Dam quadrangle, Oregon

Creator:

Hewitt, Samuel Loyd

Abstract:

A thick sequence of intercalated andesite and basalt flows, tuffs, and volcanic sediments crop out in the Fly Creek Quadrangle and the north half of the Round Butte Dam Quadrangle. This sequence was deposited in the ancestral Deschutes River Valley along the east flank of the Cascade Range during the...

Resource Type:

Masters Thesis
The geology and stratigraphy of the Tertiary volcanic and volcaniclastic rocks, with special emphasis on the Deschutes Formation, from Lake Simtustus to Madras in central Oregon

Creator:

Jay, Jeremy Barth

Abstract:

A sequence of volcanic, volcaniclastic, and epiclastic deposits from Oligocene to Recent age are exposed in the region from Lake Simtustus to Madras in central Oregon. The epiclastic sediments of the Oligocene John Day Formation are unconformably overlain by two flows of the middle Miocene Columbia River Basalt Group. The...

Resource Type:

Masters Thesis

ScholarsArchive@OSU

The Deschutes Formation-- High Cascade transition in the Whitewater River area, Jefferson County, Oregon

Geology of the Fly Creek quadrangle and the north half of Round Butte Dam quadrangle, Oregon

The geology and stratigraphy of the Tertiary volcanic and volcaniclastic rocks, with special emphasis on the Deschutes Formation, from Lake Simtustus to Madras in central Oregon

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