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Filtering by: Academic Affiliation Geosciences Committee Member Dilles, John Decade 1990-1999

Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

Creator:

Streck, Martin J.

Abstract:

The Rattlesnake Ash-Flow Tuff erupted 7.05±0.01 Ma from the western Harney Basin, southeastern Oregon. The location of the vent area is inferred based on vent-ward increases in size of pumices, in degree of welding, and in degree of post-emplacement crystallization. Today's outcrops cover 9000 km2 and estimated original outcrop coverage...

Resource Type:

Dissertation
Structure of the crust beneath Lake Superior from forward modeling of large aperture seismic data

Creator:

Shay, John T.

Abstract:

Both travel times and amplitudes of large offset refracted and reflected arrivals observed during GLIMPCE (Great Lakes International Multidisciplinary Program on Crustal Evolution) along line A in Lake Superior have been modeled using two-dimensional ray tracing techniques. Forward modeling was used to iteratively refine an initial velocity model that was...

Resource Type:

Masters Thesis
Petrology of the reversely zoned Mickey Pass Tuff, west-central Nevada

Creator:

Templeton, Jeffrey H.

Resource Type:

Dissertation
Geology and petrology of a 26-Ma trachybasalt to peralkaline rhyolite suite exposed at Hart Mountain, southern Oregon

Creator:

Mathis, Allyson C.

Resource Type:

Masters Thesis
Geology and hydrothermal mineralization in the vicinity of Rocky Top, Marion County, Oregon

Creator:

Curless, John M.

Resource Type:

Masters Thesis