Index Catalog // ScholarsArchive@OSU

Tectonic and volcanic structures of the southern flank of Axial Volcano, Juan de Fuca Ridge : results from a SeaMARC I sidescan sonar survey

Creator:: Appelgate, T. Bruce
Abstract:: A 5km swath-width SeaMARC I sidescan sonar survey, conducted over the zone of overlap between the southern rift zone of Axial Volcano and the northern tip of the Vance spreading segment on the Juan de Fuca Ridge (between 45°24'N and 45°50'N latitude), was analyzed to locate the present position of...
Resource Type:: Masters Thesis

The evolution of the Galap'agos Platform: results from radiometric dating and experimental petrology

Creator:: Sinton, Christopher W.
Resource Type:: Masters Thesis

Paleomagnetism of Jurassic plutons in the central Klamath Mountains, southern Oregon and northern California

Creator:: Schultz, Karin L.
Abstract:: An understanding of the tectonic history of the Klamath Mountains is crucial for a valid paleogeographic reconstruction of the Pacific Northwest. However, prior to this study there were very few paleomagnetic (PM) data from the Klamath Mountains (KN), which resulted in conflicting interpretations about the role of the KM province...
Resource Type:: Masters Thesis
Full Text:: also like to thank the other members of my thesis committee, Bob Duncan, Bob Yeats, and Fred Ramsey

Changes in seismic velocity and apparent attenuation due to isotropic and anisotropic scattering : results from physical modeling

Creator:: Dubendorff, Bruce H.
Abstract:: Much work is presently being done concerning small scale heterogeneities in the earth's crust. These heterogeneities range from pores in sedimentary rocks up to fluctuations in the density and seismic constants of the earth's crust with scale lengths of kilometers. The ability to study and quantify these heterogeneities using seismic...
Resource Type:: Dissertation
Full Text:: my committee members: Dick Couch, Bob Duncan, Charlie Drake, Chuck Rosenfeld, and Dean Ringle. They

Deconvolving orbital surface waves for the source duration of large earthquakes and modeling the receiver functions for the earth structure beneath a broadband seismometer array in the Cascadia subduction zone

Creator:: Li, Xiao-qing, 1963-
Resource Type:: Dissertation
Full Text:: participate in his project the TORTISS experiment. Thanks to Drs. Bob Duncan, Gary Egbert, Anne Trehu and

The Atlantic, the Amazon, and the Andes : neogene climate and tectonics viewed from Ceara Rise, western tropical Atlantic

Creator:: Harris, Sara E.
Resource Type:: Dissertation
Full Text:: . Committee members Bob Duncan and John Baham have provided advice and encouragement. Thanks to Bill Liss and

Wave competence and morphodynamics of boulder and gravel beaches

Creator:: Lorang, Mark
Resource Type:: Dissertation
Full Text:: those concepts to gravel beaches, Rob Hoilman, Bob Duncan, Gordon Grant and Douglas Markie also served

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

Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

Creator:: Streck, Martin J.
Abstract:: The Rattlesnake Ash-Flow Tuff erupted 7.05±0.01 Ma from the western Harney Basin, southeastern Oregon. The location of the vent area is inferred based on vent-ward increases in size of pumices, in degree of welding, and in degree of post-emplacement crystallization. Today's outcrops cover 9000 km2 and estimated original outcrop coverage...
Resource Type:: Dissertation
Full Text:: lot thinner! The time and efforts of my graduate committee, Gordon Goles, Ed Taylor, Bob Duncan

ScholarsArchive@OSU

Tectonic and volcanic structures of the southern flank of Axial Volcano, Juan de Fuca Ridge : results from a SeaMARC I sidescan sonar survey

The evolution of the Galap'agos Platform: results from radiometric dating and experimental petrology

Paleomagnetism of Jurassic plutons in the central Klamath Mountains, southern Oregon and northern California

Changes in seismic velocity and apparent attenuation due to isotropic and anisotropic scattering : results from physical modeling

Deconvolving orbital surface waves for the source duration of large earthquakes and modeling the receiver functions for the earth structure beneath a broadband seismometer array in the Cascadia subduction zone

The Atlantic, the Amazon, and the Andes : neogene climate and tectonics viewed from Ceara Rise, western tropical Atlantic

Wave competence and morphodynamics of boulder and gravel beaches

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

Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

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