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Filtering by: Subject Geology -- Oregon -- Astoria Committee Member Dilles, John

Two-stage opening of the northwestern basin and range in eastern Oregon : evidence from the Miocene Crane basin

Creator:

Milliard, Justin B.

Abstract:

New data are presented that provide evidence for the onset of extensional deformation in the Northwestern Basin and Range within 1 million years after the eruption of the Steens Basalt at 16.5 Ma. New geologic mapping (1:24,000), stratigraphic sections, and ⁴⁰Ar/³⁹Ar dating of the Crane Basin rocks provide a control...

Resource Type:

Masters Thesis

Full Text:

with numerous people about the geology of eastern Oregon. Andrew Meigs, Anita Grunder, John Dilles
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
Extension and volcanism : tectonic development of the northwestern margin of the Basin and Range Province in southern Oregon

Creator:

Scarberry, Kaleb C.

Abstract:

The northwestern corner of the Basin and Range Province (NWBR) lies in southeast Oregon where extensive Late Miocene, mafic to bimodal basalt-rhyolite volcanism and extensional faults dominate a stark and arid landscape. Near Lake Abert, the Late Miocene volcanic section abuts Early Miocene, dominantly intermediate composition volcanoes at the Coleman...

Resource Type:

Dissertation

Full Text:

Northwestern Margin of the Basin and Range Province in Southern Oregon By Kaleb C. Scarberry