Index Catalog // ScholarsArchive@OSU

Tectonic evolution of the Walvis Ridge and West African margin, South Atlantic Ocean

Creator:: Baumgartner, Timothy Robert
Abstract:: The opening of the South Atlantic between 140 and 90 m. y. B. P. occurred about two poles of rotation. The initial pole of rotation was maintained until Africa and South America were completely separated. The subsequent removal of restraints imposed by the pre-existing structure of Africa and South America...
Resource Type:: Masters Thesis
Full Text:: Observatory, and traverses 2, 71, 204, and 205 of the Department of Geology of the University of Cape Town

Marine geophysical studies offshore: Newport, Oregon

Creator:: Whitcomb, James Hall
Abstract:: A marine geophysical study using shallow seismic reflection, gravity and magnetic methods of investigation was done for an offshore area near Newport, Oregon. The area is bounded by the latitudes 44°1O' to 44°50' N. and longitudes 124°07' to 124°30' W. The interpretation of observational data showed that the geology of...
Resource Type:: Masters Thesis
Full Text:: the geology of the area north of latitude 44°25' N. con- sists of a north-south syncline. A

Sediments and planktonic foraminifera of tropical North Atlantic cores

Creator:: Ensminger, Henry Robert
Resource Type:: Masters Thesis
Full Text:: the submarine geology of the North Atlantic Ocean. No- table contributors have been the marine

P and S velocity structure beneath the Gulf of Maine

Creator:: Sattel, Daniel
Abstract:: Seismic refraction data collected in 1985 by the USGS were used in this study to derive the P and S velocity structure of the crust beneath the Gulf of Maine. The data quality differs among instruments and is affected by surficial lateral heterogeneities, a ringy source signature and reverberations. Velocity...
Resource Type:: Masters Thesis

Helium isotope variations in peridotite, gabbro and basalt from the Kane Oceanic Core Complex

Creator:: Konrad, Kevin
Abstract:: The Kane Oceanic Core Complex (OCC) is a valuable window into crustal architecture and chemical composition of the lithosphere beneath a slow-spreading ocean ridge. A suite of > 30 samples (comprised of whole rocks, mineral separates and basalt glasses) has been analyzed for ³He/⁴He isotope ratios and He concentrations. Gas...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Kevin Konrad for the degree of Master of Science in Geology presented on

Clay mineral origin and distribution on Astoria Fan

Creator:: Russell, Kenneth Lloyd
Abstract:: Clay minerals from sediment samples obtained on Astoria Fan were analyzed by X-ray diffraction. Clay minerals are defined for the purpose of this study as crystalline phyllosilicates less than two microns in equivalent settling diameter. The clay minerals are subdivided into the five common families: montmorillonite, chlorite, vermiculite, illite, and...
Resource Type:: Masters Thesis
Full Text:: sedimentation in the Pacific off northern Mexico. Marine Geology 3:337-348. Boubel, R. W. 1967. Associate

Biotic alteration of oceanic basalt glass

Creator:: Drinnan, Megan R.
Abstract:: The subsurface microbial biosphere in the igneous oceanic crust has implications for global geochemical cycling, early life on Earth, and the search for life on Mars. Microscopic evidence of a subsurface microbial ecosystem includes biotic alteration textures associated with basaltic glass. The exact conditions in the basaltic layer that make...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Megan R. Drinnan for the degree of Master of Science in Geology

The Gorda Escarpment's rise and fall : synthesis of exploration seismology, sampling efforts, micropaleontology, and radiometric dating

Creator:: Potter, Susan M.
Abstract:: The Gorda Escarpment (40.4° N and from 126° W to 124.7° W) is a topographic high which is the eastern portion of the Mendocino Transform Fault. The Vizcaino Block is the anomalously shallow portion of the Pacific plate immediately south of the Gorda Escarpment. Sediments of the Vizcaino Block record...
Resource Type:: Masters Thesis

Hydrothermal links between ocean plateau formation and global anoxia at the Cenomanian-Turonian boundary

Creator:: Snow, Laura J.
Abstract:: The Cretaceous was a period of extreme climatic conditions accompanied by major perturbations in ocean-atmosphere biogeochemical cycles. One of the most intriguing features is the sporadic interruption of normal marine pelagic sediment deposition by organic rich sediments deposited during oxygen-deficient conditions (ocean anoxic events OAEs). A current model for the...
Resource Type:: Masters Thesis
Full Text:: submarine volcanic events was partly responsible for the decreased levels of 02 and deposition of black

Mapping and lithologic interpretation of the Territorial Sea, Oregon

Creator:: Agapito, Melinda T.
Abstract:: Seafloor lithologic maps have been widely used to identify conservation sites. In this study, a lithologic interpretation of Oregon's territorial seafloor was created as an interim product in response to the need for a comprehensive lithologic map that will be used in the identification, evaluation and design of marine reserves...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Tectonic evolution of the Walvis Ridge and West African margin, South Atlantic Ocean

Marine geophysical studies offshore: Newport, Oregon

Sediments and planktonic foraminifera of tropical North Atlantic cores

P and S velocity structure beneath the Gulf of Maine

Helium isotope variations in peridotite, gabbro and basalt from the Kane Oceanic Core Complex

Clay mineral origin and distribution on Astoria Fan

Biotic alteration of oceanic basalt glass

The Gorda Escarpment's rise and fall : synthesis of exploration seismology, sampling efforts, micropaleontology, and radiometric dating

Hydrothermal links between ocean plateau formation and global anoxia at the Cenomanian-Turonian boundary

Mapping and lithologic interpretation of the Territorial Sea, Oregon

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search