Index Catalog // ScholarsArchive@OSU

Volcanic stratigraphy and epithermal mineralization of the DeLamar Silver Mine, Owyhee County, Idaho

Creator:: Thomason, Robert Edward
Abstract:: For master (tiff) digital images of maps contained in this document contact scholarsarchive@oregonstate.edu
Resource Type:: Masters Thesis

Hydrothermal alteration and oil show at the Summer Coon intrusive center, Saguache County, Colorado

Creator:: Loken, Trygve
Abstract:: The Summer Coon intrusive center is located seven miles north of Del Norte, Colorado, on the eastern edge of the San Juan Mountains. The intrusive center is the core of a dissected calcalkaline composite volcano of middle Oligocene age. The Summer Coon rocks belong to the Conejos Formation which is...
Resource Type:: Masters Thesis

The geology of the east central desolation butte quadrangle, Grant County, Oregon

Creator:: Elfrink, Neil
Abstract:: Pre-Tertiary metamorphic rocks, Jurassic granitic intrusions, and Eocene basalts are exposed along the North Fork of the John Day River at its confluence with Granite Creek. Geochemical and textural evidence suggest greenschist-metamorphosed, strongly sheared, volcanogenic rocks originated in an island-arc environment. These greenstones were apparently intruded during the Late Permian...
Resource Type:: Masters Thesis

Late Quaternary radiolarian paleo-oceanography of the Panama Basin, eastern equatorial Pacific

Creator:: Dinkelman, Menno Gustaaf
Abstract:: A total of 57 core top samples from the Panama Basin were used in a quantitative study of complete radiolarian thanatocoenoses to determine whether surface oceanographic conditions are reflected in the microplankton faunas deposited onto and buried in the sea floor. Information obtained from this study was used to resolve...
Resource Type:: Dissertation
Full Text:: . I thank Drs. Cyrus W. Field and Wayne V. Burt for their assistance as members of my committee. A

Stable isotope investigation of a hydrothermal alteration system : Butte porphyry copper deposit

Creator:: Zhang, Lihua, 1965-
Abstract:: Typical porphyry-type Cu-Mo mineralization predates and underlies the well-known Main Stage polymetallic veins of the Butte district, Montana. This thesis presents the first systematic study of the isotopic characteristics of the pre-Main Stage K-silicate and sericitic wallrock alteration related to the porphyry Cu-Mo stage. Oxygen and hydrogen isotopic compositions were...
Resource Type:: Dissertation

Hydrothermal alteration of sedimentary organic matter in Guaymas Basin, Gulf of California

Creator:: Kawka, Orest Eduard Mykola
Resource Type:: Dissertation

Robert Hooke and the foundation of geology : a comparison of Steno and Hooke and the Hooke imprint on the Huttonian theory ; and, The tectonic evolution of the Oregon continental margin : rotation of segment boundaries and possible spacetime relationships in the Central High Cascades

Creator:: Drake, Ellen T.
Abstract:: Based on the principle that the history of a discipline is important to the discipline itself, this thesis devotes two chapters to ROBERT HOOKE AND THE FOUNDATION OF GEOLOGY and two chapters to modern geology, viz. THE TECTONIC EVOLUTION OF THE OREGON CONTINENTAL MARGIN. The first part of this abstract...
Resource Type:: Dissertation

Geology of the Willow Creek area, Elko County, Nevada

Creator:: Whitaker, John Harry McDonald, 1921-
Abstract:: The purpose of this study was to test two hypotheses. The first hypothesis interprets allochthonous rocks in the Willow Creek area of the Pinyon Range as lying on flat, superficial thrusts that truncate the underlying folded Mississippian rocks of the Antler flysch sequence. The second hypothesis interprets the allochthonous rocks...
Resource Type:: Masters Thesis

Evolution of jasperoid and hydrothermal alteration at Veteran Extension in the Robinson (Ely) porphyry copper district, Nevada

Creator:: Maher, David J., (David Joseph), 1969-
Resource Type:: Masters Thesis
Full Text:: Oregon State as well. Cyrus Field and Anita Grunder also served on my committee and reviewed my thesis

Experimental determination of the temperature and compositional dependences of rare earth element, Y, and Sc partitioning between high-Ca clinopyroxene and natural mafic to intermediate silicate melts

Creator:: Gallahan, William E.
Resource Type:: Masters Thesis
Full Text:: Nielsen, I give my greatest thanks. I wish to extend thanks to my graduate committee members, Cyrus Field

ScholarsArchive@OSU

Volcanic stratigraphy and epithermal mineralization of the DeLamar Silver Mine, Owyhee County, Idaho

Hydrothermal alteration and oil show at the Summer Coon intrusive center, Saguache County, Colorado

The geology of the east central desolation butte quadrangle, Grant County, Oregon

Late Quaternary radiolarian paleo-oceanography of the Panama Basin, eastern equatorial Pacific

Stable isotope investigation of a hydrothermal alteration system : Butte porphyry copper deposit

Hydrothermal alteration of sedimentary organic matter in Guaymas Basin, Gulf of California

Robert Hooke and the foundation of geology : a comparison of Steno and Hooke and the Hooke imprint on the Huttonian theory ; and, The tectonic evolution of the Oregon continental margin : rotation of segment boundaries and possible spacetime relationships in the Central High Cascades

Geology of the Willow Creek area, Elko County, Nevada

Evolution of jasperoid and hydrothermal alteration at Veteran Extension in the Robinson (Ely) porphyry copper district, Nevada

Experimental determination of the temperature and compositional dependences of rare earth element, Y, and Sc partitioning between high-Ca clinopyroxene and natural mafic to intermediate silicate melts

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