Index Catalog // ScholarsArchive@OSU

The marine geomorphology of American Samoa : shapes and distributions of deep sea volcanics

Creator:: Roberts, Jed T.
Abstract:: The geologic processes at work in American Samoa have long been a point of scientific debate. Of its numerous volcanic formations, few breach sea level, leaving an enormous proportion of their mass unavailable to traditional observation. This study aims to describe the deep sea geomorphology of American Samoa through compilation,...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Dawn J. Wright The geologic processes at work in American Samoa have long been a point of

Prevalance [sic] of senile dementia of the Alzheimer type (SDAT) in females receiving postmenopausal conjugated estrogen vs. controls : a retrospective review

Creator:: Gooch, Michael D.
Abstract:: Recent in vitro data provide evidence that estrogen may assist in the maintenance of nervous tissue viability. Anecdotal reports suggest a lower prevalence of SDAT in postmenopausal women who have received estrogen replacement therapy although published data are conflicting. The purposes of this study are to determine whether the incidence...
Resource Type:: Masters Thesis

Revisiting Lōʻihi: Geochemistry of Kamaʻehuakanaloa Lavas Reveals Complexities in the Pre-Shield to Shield Transition and Hawaiian Mantle Plume Source

Creator:: Truong, Thi B.
Abstract:: Studies of Hawaiian volcanoes contribute valuable insights about Earth processes and mantle evolution, and are fundamental for understanding the construction of the largest volcanoes on terrestrial planets. The pre-shield stage exists in every Hawaiian volcano, but is usually blanketed by high volume tholeiitic lava flows during the main shield stage....
Resource Type:: Dissertation
Full Text:: . Peter J. Michael contributed FTIR data in Chapter 3 and Dr. Michael O. Garcia contributed samples for

The geology, geochronology, and geochemistry of the Kaskanak Batholith, and other late Cretaceous to Eocene magmatism at the Pebble porphyry Cu-Au-Mo deposit, SW Alaska

Creator:: Olson, Nansen H.
Abstract:: The Pebble porphyry Cu-Au-Mo deposit in Alaska is one of the world's largest Cu-Au mineral resources. Late Cretaceous magmatic evolution in the Pebble district culminated with the intrusion of the Kaskanak Batholith and associated porphyry copper-gold-molybdenum mineralization. The Kaskanak Batholith is a multiphase granodiorite intrusion with an estimated footprint of...
Resource Type:: Masters Thesis

Magmatic processes beneath mid-ocean ridges : insights from mineral and glass chemistry in plagioclase ultraphyric basalts

Creator:: Lange, Amy E.
Abstract:: Prior to eruption at mid-ocean ridges, melts must travel through >6 km of crust from their origin in the mantle. The final composition of the melts is dependent on both the melting conditions and magmatic processes within the crust. While mid-ocean ridge basalt (MORB) glasses are commonly used to infer...
Resource Type:: Dissertation
Full Text:: ., Perfit, M.R., Blichert-Toft, J., and Blusztajn, J., 2011, Perspective on the Genesis of E-MORB from

New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

Creator:: Konrad, Kevin
Abstract:: Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...
Resource Type:: Dissertation
Full Text:: contributed to the discussion. Chapter 4 - A.A.P. Koppers and J. Konter developed the initial

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:: of 70% and a fluence of 4.84 J/cm 2 . Ten analysis were taken for each mineral type on three to

Effects of High-docosahexaenoic Acid Microalgae and Choline in the Hen Diet on Egg Production and Lipid Metabolism

Creator:: Yonke, Joseph A.
Abstract:: The objectives of the current study were to 1) investigate the effect a high-docosahexaenoic acid (C22:6 n-3, DHA) microalgae product (MAL), and choline dosage in diets containing MAL, on egg production performance, physical egg quality, and nutritional parameters, and 2) determine whether choline dosage influences hepatic lipid metabolism of...
Resource Type:: Masters Thesis

On the Volcanic and Geodynamic Evolution of the Shatsky Rise and the Louisville Seamount

Creator:: Heaton, Daniel E.
Abstract:: Large igneous provinces (LIPs) and intraplate seamounts reflect of anomalous mantle melting and illuminate interior processes of the Earth. These features are in all ocean basins and show the mantle’s evolution over time, then can provide information on plate tectonic processes, such as plate motion over time, spreading ridge formation,...
Resource Type:: Dissertation
Full Text:: Allègre, C. J., & Turcotte, D. L. (1985). Geodynamic mixing in the mesosphere boundary layer and the

Assessment of the neuropathological consequences of vitamin E deficiency

Creator:: McDougall, Melissa Quin
Abstract:: Cognitive impairment, or cognitive decline, a noticeable and measurable decline in cognitive abilities (e.g. memory and learning) that exceeds those attributed to normal aging, represents an early symptom of neurodegeneration and increased risk for progression to more severe dementias, such as Alzheimer's disease (AD). While the complex etiology of these...
Resource Type:: Dissertation

ScholarsArchive@OSU

The marine geomorphology of American Samoa : shapes and distributions of deep sea volcanics

Prevalance [sic] of senile dementia of the Alzheimer type (SDAT) in females receiving postmenopausal conjugated estrogen vs. controls : a retrospective review

Revisiting Lōʻihi: Geochemistry of Kamaʻehuakanaloa Lavas Reveals Complexities in the Pre-Shield to Shield Transition and Hawaiian Mantle Plume Source

The geology, geochronology, and geochemistry of the Kaskanak Batholith, and other late Cretaceous to Eocene magmatism at the Pebble porphyry Cu-Au-Mo deposit, SW Alaska

Magmatic processes beneath mid-ocean ridges : insights from mineral and glass chemistry in plagioclase ultraphyric basalts

New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

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

Effects of High-docosahexaenoic Acid Microalgae and Choline in the Hen Diet on Egg Production and Lipid Metabolism

On the Volcanic and Geodynamic Evolution of the Shatsky Rise and the Louisville Seamount

Assessment of the neuropathological consequences of vitamin E deficiency

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