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Filtering by: Creator Miller, Heather M. Remove constraint Creator: Miller, Heather M. Degree Field Oceanography Remove constraint Degree Field: Oceanography Subject Submarine geology Remove constraint Subject: Submarine geology

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  • 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:
    Tjeerd H. van Andel The opening of the South Atlantic between 140 and 90 m. y. B. P. occurred about two

  • Marine geology of the continental margin off southern Oregon

    Creator:
    Spigai, Joseph John
    Abstract:
    The continental margin off southern Oregon, which includes the shelf and slope from Cape Blanco to the Oregon-California border, exhibits a distinctive marginal-plateau structural pattern which divides the margin into the continental shelf, the upper continental slope and its associated benches, and the lower continental slope. Lutum transport and deposition...
    Resource Type:
    Dissertation
    Full Text:
    and is ubiquitous on the margin, with the thickest accumulation (10 m average) found on the lower

  • 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:
    Irma for getting me here to Oregon and for Sue and Linda for all the chats. Thanks to Heather and Matt

  • 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:
    AN ABSTRACT OF THE THESIS OF Kenneth Lloyd Russell for the M. S

  • Marine geology of Astoria submarine canyon

    Creator:
    Carlson, Paul R. (Paul Roland), 1933-
    Resource Type:
    Dissertation
    Full Text:
    groups. 91 28. C M patterns of the Astoria Canyon area compared to 95 CM patterns for sediments from