Index Catalog // ScholarsArchive@OSU

Geochemistry of quaternary, rift-related volcanism in the Bransfield Strait, Antarctica

Creator:: Keller, Randall Arthur
Abstract:: The Bransfield Strait is the narrow, late Tertiary to Quaternary marginal basin separating the South Shetland Islands from the northern end of the Antarctic Peninsula magmatic arc. Quaternary volcanism in the strait is tholeiitic to mildly alkaline, and contrasts chemically with the pre-Quaternary calc-alkaline arc volcanism. Geochemical evidence presented here...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Randall A. Keller for the degree

The petrology, geochemistry, and geochronology of hotspot seamounts in the North Pacific and arc/backarc volcanism on the northern Antarctic Peninsula

Creator:: Keller, Randall A.
Abstract:: Volcanic rocks from hotspots and island arcs/backarcs typically have enriched trace element and isotopic compositions that contain a contribution from subducted oceanic crust. Isotopic and trace element data suggest that the enriched components in hotspot volcanism are ancient subducted sediment and crust, and the enriched components in arc/backarc volcanism are...
Resource Type:: Dissertation

Black Mirror and The Twilight Zone: How Television Gives a Window into the Fears of American Society

Creator:: Santisteven, Alyssa
Abstract:: Black Mirror and The Twilight Zone have each left their mark on popular culture. Charlie Brooker and Rod Serling created television shows with macabre and imaginative concepts and brought them to the small screen. “This is like something straight out of The Twilight Zone!” has become a common phrase since...
Resource Type:: Honors College Thesis
Full Text:: :_____________________________________________________ Randall Milstein Black Mirror and The Twilight Zone have each left their mark on popular culture

Beliefs and attitudes influence willingness to pay recreation fees at an urban forest : incorporating attitudes in contingent valuation methods

Creator:: Moehrke, Caitlin
Abstract:: The current thesis presents contingent valuation research incorporating social psychological measures that investigates recreationists' willingness to pay recreation access fees at McDonald-Dunn Forest, Oregon. Context is provided through an extensive literature review of recreation fee management, issues and concerns related to recreation fees, recreationists' attitudes toward fees, relevant social psychological...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Randall S. Rosenberger The current thesis presents contingent valuation research

Pivoting angles of gravel with applications in sediment threshold studies

Creator:: Li, Zhenlin
Resource Type:: Masters Thesis
Full Text:: professors Drs. Paul Komar and George Keller. Their instructions, advice and critical comments on this

Hawaiian duck (Anas wyvilliana) behavior and response to wetland habitat management at Hanalei National Wildlife Refuge on Kaua'i

Creator:: Malachowski, Christopher P.
Abstract:: The endangered Hawaiian Duck (koloa maoli; Anas wyvilliana), a non-migratory and island-endemic species, experienced a significant population decline during the twentieth century due to factors such as habitat loss, overharvest, introduced mammalian predators, and hybridization with introduced feral Mallards (A. platyrhynchos). A key objective for Hawaiian Duck recovery is to...
Resource Type:: Masters Thesis
Full Text:: graduate council representative, Dr. Randall Keller, for his service. Funding for my project was

Volatiles and Geochemical Fingerprinting of Plagioclase-Hosted Melt Inclusions from Mid-Ocean Ridge Lavas: Determination of Depth of Crystallization and Melt Composition in the Lower Crust

Creator:: Kotash, Alisa K.
Abstract:: The global mid-ocean ridge system is the largest magmatic system encompassing over 75% of the Earth’s total volcanism. As magmas ascend through the vertically variable oceanic crust, melts begin to crystallize and diversify and subsequently erupt at the surface. The interpretation of these erupted products observed on the seafloor requires...
Resource Type:: Dissertation
Full Text:: . I also acknowledge my other committee members Dr. Randy Keller, Dr. Adam Kent and my dedicated

Evaluating downstream channel changes in response to a small dam removal on the Calapooia River, Oregon with respect to measurement errors and prior aerial photo observed changes

Creator:: Walter, Cara
Abstract:: The objective of this study was to evaluate the use of aerial photos as a substitute for multiple-year pre-removal field data to assess the downstream channel changes associated with a small dam removal. The Brownsville Dam, a 2.1 m tall concrete dam on the Calapooia River, Oregon, was removed in...
Resource Type:: Masters Thesis

Structural distortions, phase transitions, and cation ordering in the perovskite and tungsten trioxide structures

Creator:: Woodward, Patrick M.
Abstract:: See pdf
Resource Type:: Dissertation
Full Text:: of thanks to several people. First of all I would like to acknowledge my advisor, Professor Arthur

Extending the clinical applications of commercially available optically stimulated luminescence (OSL) dosimeters

Creator:: Keller, James R.
Abstract:: We present the results of our experiments designed to extend the clinical applications of commercially available Optically Stimulated Luminescence (OSL) Dosimeters. Our initial experiments demonstrate the linear response of the OSL dosimeters for doses under 200 cGy and the non-linear response of the device after 200 cGy. Our experiments show...
Resource Type:: Dissertation
Full Text:: R. Keller for the degree of Doctor of Philosophy in Medical Physics presented on June 3, 2013

ScholarsArchive@OSU

Geochemistry of quaternary, rift-related volcanism in the Bransfield Strait, Antarctica

The petrology, geochemistry, and geochronology of hotspot seamounts in the North Pacific and arc/backarc volcanism on the northern Antarctic Peninsula

Black Mirror and The Twilight Zone: How Television Gives a Window into the Fears of American Society

Beliefs and attitudes influence willingness to pay recreation fees at an urban forest : incorporating attitudes in contingent valuation methods

Pivoting angles of gravel with applications in sediment threshold studies

Hawaiian duck (Anas wyvilliana) behavior and response to wetland habitat management at Hanalei National Wildlife Refuge on Kaua'i

Volatiles and Geochemical Fingerprinting of Plagioclase-Hosted Melt Inclusions from Mid-Ocean Ridge Lavas: Determination of Depth of Crystallization and Melt Composition in the Lower Crust

Evaluating downstream channel changes in response to a small dam removal on the Calapooia River, Oregon with respect to measurement errors and prior aerial photo observed changes

Structural distortions, phase transitions, and cation ordering in the perovskite and tungsten trioxide structures

Extending the clinical applications of commercially available optically stimulated luminescence (OSL) dosimeters

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