Index Catalog // ScholarsArchive@OSU

Role of the Sisters Fault Zone in the Separation of Siletzia from the Cascadia Backarc

Creator:: Mark-Moser, MacKenzie
Abstract:: Oblique subduction of the Juan de Fuca plate beneath the North American plate characterizes the tectonic setting of the Pacific Northwest. North American plate deformation at the latitude of central Oregon consists of the clockwise-rotation of the Siletzia block in the forearc and the extensional Basin and Range province in...
Resource Type:: Masters Thesis

Effects of estuary characteristics and tsunami waveforms on transported sand sheets

Creator:: Armstrong, Emma M.
Abstract:: The details of the 1700 Cascadia Subdction Zone earthquake and tsunami can be better constrained using data from tsunami sand sheets, provided knowledge of the waveform, estuary geometry and bed roughness controls on the deposition pattern of the sand sheet. In this study, we use the hydrodynamic and sediment transport...
Resource Type:: Undergraduate Thesis

Signatures in the Subsurface - Big & Small Data Approaches for the Spatio-Temporal Analysis of Geologic Properties & Uncertainty Reduction

Creator:: Rose, Kelly Kathleen
Abstract:: Despite more than two centuries of exploration, including more than six million deep wellbores with depths exceeding 40,000 feet in some parts of the world, our ability to constrain subsurface processes and properties remains limited. Characteristics of the subsurface vary and can be analyzed on a variety of spatial scales....
Resource Type:: Dissertation

Quaternary Landscape Evolution and the Surface Expression of Plume-Lithosphere Interactions in the Greater Yellowstone Area

Creator:: Guerrero, Eduardo Francisco
Abstract:: Numerous investigations demonstrate that mantle convective processes such as upwelling affect the surface topography of the overriding plate. The surface expression of mantle flow has been coined ‘transient topography’. Transient topography in the North American plate is thought to result from a mantle thermal anomaly beneath the Yellowstone volcanic center,...
Resource Type:: Dissertation

Shear development and overprinting in a back-arc basin, Klamath Falls, Oregon

Creator:: Waldien, Trevor and Meigs, Andrew
Abstract:: Three key tectonic domains of western North America, the Walker Lane Fault Zone (WLFZ), northwestern Basin and Range (NWBR), and Cascade arc, intersect in south-central Oregon. Bounded by Cascade arc volcanoes in the west, the Klamath Graben is traditionally regarded as the western-most extent of the Basin and Range extensional...
Resource Type:: Poster

Debris flows in glaciated catchments : a case study on Mount Rainier, Washington

Creator:: Legg, Nicholas T.
Abstract:: Debris flows, which occur in mountain settings worldwide, have been particularly damaging in the glaciated basins flanking the stratovolcanoes in the Cascade Range of the northwestern United States. This thesis contains two manuscripts that respectively investigate the (1) initiation processes of debris flows in these glaciated catchments, and (2) debris...
Resource Type:: Masters Thesis

Structural and volcanic evolution of the Glass Buttes area, High Lava Plains, Oregon

Creator:: Boschmann, Darrick E.
Abstract:: The Glass Buttes volcanic complex is a cluster of bimodal (basalt-rhyolite), Miocene to Pleistocene age lava flows and domes located in Oregon's High Lava Plains province, a broad region of Cenozoic bimodal volcanism in south-central Oregon. The High Lava Plains is deformed by northwest-striking faults of the Brothers Fault Zone,...
Resource Type:: Masters Thesis

Geology, flooding & human activities : establishing a hierarchy of influence for controls on historic channel change, Willamette River, Oregon

Creator:: Wallick, Jennifer Rose
Abstract:: Channel evolution and influences of changing floodplain characteristics, heterogenous bank materials, and altered flow regimes were examined along the Willamette River, a large alluvial river in northwestern Oregon. The Willamette River is composed of a series of geomorphically diverse reaches, which have each evolved uniquely in the century following Euro-American...
Resource Type:: Masters Thesis

The termination of the Basin and Range Province into a clockwise rotating region of transtension and volcanism, central Oregon

Creator:: Trench, David
Abstract:: Normal faults characterizing extensional provinces may terminate along-strike at regions of zero extension, at zones of transform faults, or at triple junctions. Termination of the Basin and Range extensional province in southeastern Oregon is thought to occur by right-lateral transform motion distributed across the Brothers Fault zone (BFZ) in central...
Resource Type:: Masters Thesis

Fold growth due to kink-band migration in repeated earthquakes, Sierra de Villicum, San Juan, Argentina

Creator:: Krugh, William C.
Abstract:: Growth strata geometries and deformed geomorphic surfaces reflect the shorttimescale growth of Sierra de Villicum (San Juan Province, Argentina). Accumulated deformation in repeated earthquakes is recorded by the structural geometry of deformed geomorphic surfaces. Through geologic mapping and topographic surveying, six strath terraces were identified on the eastern flank of...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Role of the Sisters Fault Zone in the Separation of Siletzia from the Cascadia Backarc

Effects of estuary characteristics and tsunami waveforms on transported sand sheets

Signatures in the Subsurface - Big & Small Data Approaches for the Spatio-Temporal Analysis of Geologic Properties & Uncertainty Reduction

Quaternary Landscape Evolution and the Surface Expression of Plume-Lithosphere Interactions in the Greater Yellowstone Area

Shear development and overprinting in a back-arc basin, Klamath Falls, Oregon

Debris flows in glaciated catchments : a case study on Mount Rainier, Washington

Structural and volcanic evolution of the Glass Buttes area, High Lava Plains, Oregon

Geology, flooding & human activities : establishing a hierarchy of influence for controls on historic channel change, Willamette River, Oregon

The termination of the Basin and Range Province into a clockwise rotating region of transtension and volcanism, central Oregon

Fold growth due to kink-band migration in repeated earthquakes, Sierra de Villicum, San Juan, Argentina

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