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Filtering by: Creator Miller, Heather M. Remove constraint Creator: Miller, Heather M. Committee Member Klinkhammer, Gary Remove constraint Committee Member: Klinkhammer, Gary Degree Field Oceanography Remove constraint Degree Field: Oceanography

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  • Modern and past climate variability in the eastern Pacific warm pool

    Creator:
    Benway, Heather M.
    Abstract:
    Westward transport of water vapor across the Panama Isthmus helps to maintain the salinity contrast between the Atlantic and Pacific Oceans, important in thermohaline circulation and global climate. Relatively low sea-surface salinities and a strong, shallow pycnocline in the eastern Pacific warm pool (EPWP) region near Central America reflect high...
    Resource Type:
    Dissertation
    Full Text:
    Heather M. Ben\YilY for the degree of Doctor of PhilQfilw_hy in OceanogrJIDhY presented on July 21, 2005

  • The role of sulfur in the preservation of isoprenoid hydrocarbons in sedimentary materials of the Washington continental margin

    Creator:
    Pinto Alvarez, Luis A.
    Abstract:
    A systematic study of highly branched isoprenoids (HBI) was carried out in suspended particulate material (SPM) and Washington coastal sediments to determine their origin and fate. SPM collected at 10 m depth was filtered through Nitex membranes. C₂₅ HBI were found only in the 1.2-40 μm range over the shelf....
    Resource Type:
    Dissertation
    Full Text:
    determine their origin and fate. SPM collected at 10 m depth was filtered through Nitex membranes. C25 HBI

  • 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

  • The influence of early diagenesis on trace element and molybdenum isotope geochemistry

    Creator:
    Poulson, Rebecca L.
    Abstract:
    This thesis investigates the influence of early diagenesis on trace metal and molybdenum isotope behavior in marine and lacustrine environments. Chapter one is a synthesis of previous research in all the marine environments investigated, providing an essential geochemical context for interpreting the observed behavior of Mo in these settings. Chapter...
    Resource Type:
    Dissertation
    Full Text:
    1.6 Pore water profiles and generalized diagenetic regimes for MANOP sites M and H

  • Changing export production in the Eastern Equatorial Pacific, 160 ka to present

    Creator:
    Kish, Stacy W.
    Abstract:
    The increase in modern atmospheric CO₂ concentration (360 ppm) from pre-industrial levels (280 ppm) raises concern over the impact of anthropogenic carbon dioxide input on atmospheric chemistry. For this reason, it is important to understand the natural fluctuations of atmospheric carbon dioxide in the past. The Vostok ice core record...
    Resource Type:
    Masters Thesis
    Full Text:
    and June for helping me pick samples and all of their funny stories. Thanks to Heather for reading