Index Catalog // ScholarsArchive@OSU

Experimental and numerical analysis of transport in saturated heterogeneous media

Creator:: Harrington, Stephanie J.
Abstract:: The conventional advection-dispersion equation cannot adequately describe all processes driving solute transport in heterogeneous systems. This dissertation focuses on the individual influences of both chemical (Chapter 2) and physical processes (Chapters 3 and 4) which affect solute transport. In Chapter 2 we analyzed uranium transport in natural sediment using the...
Resource Type:: Dissertation
Full Text:: Chapter 2 we analyzed uranium transport in natural sediment using the chemical multirate mass transfer

Deciphering Quaternary Geomagnetic, Glacial, and Depositional Histories Using Paleomagnetism in Tandem with Other Chronostratigraphic and Sedimentological Approaches

Creator:: Reilly, Brendan T.
Abstract:: Stratigraphy and chronology are essential to sedimentological study of Earth system histories. And, stratigraphy and chronology are often challenging and interesting problems themselves. The Quaternary (2.588 Ma - present) experienced paleoenvironmental and paleo-geomagnetic variability well outside the range of the recent instrumental record, providing the opportunity to place recent observations...
Resource Type:: Dissertation
Full Text:: chronostratigraphic markers. To address this issue, we model sediment accumulation rates at seven drill sites

Deep-sea sediment paleomagnetism : a case study from the North Atlantic

Creator:: Strano, Sarah Elianna
Abstract:: Sedimentary records from the North Atlantic, instrumental in the development of modern paleo-geomagnetic concepts, show a highly variable field even during times of constant polarity. Yet, our understanding of how the magnetization is acquired in the sediments is poorly understood. Primary magnetizations preserved in deep-sea sediments are known to be...
Resource Type:: Dissertation
Full Text:: the opportunity to be a part of the paleoceanography and marine geology group at Oregon State. You

Geoarchaeological Investigations at the Devils Kitchen Site (35CS9), Southern Oregon Coast

Creator:: Curteman, Jessica Ann
Abstract:: A geoarchaeological investigation was conducted at the Devils Kitchen archaeological site, located in the Devils Kitchen State Park along the southern Oregon coast. In this thesis research, the author paired previous and recent excavated stratigraphy profiles to define culturally significant deposits. These stratigraphic units were defined further geochemically using a...
Resource Type:: Masters Thesis
Full Text:: to a fluctuation in sediment supply, energy, and relative sea level. The Oregon coastline has been

Sediment reservoir dynamics on steepland valley floors : influence of network structure and effects of inherited ages

Creator:: Frueh, Walter Terry
Abstract:: Sediment deposit ages inferred from radiocarbon dating of stream bank material were used to estimate residence times of valley-floor deposits in headwater valleys of the Oregon Coast Range, USA. Inherited ages of radiocarbon-dated material, i.e., time between carbon fixation in wood and its incorporation in a sediment deposit, can result...
Resource Type:: Masters Thesis
Full Text:: mountain landscapes such as the Oregon Coast Range, debris flows deliver much of the sediment generated

Sediment transport modeling and implications for benthic primary producers in Oak Creek, OR

Creator:: Katz, Scott B.
Abstract:: The spatial and temporal variability of sediment transport processes in Oak Creek, OR was investigated and used to explore two study questions: 1) How do sediment transport processes influence benthic algal communities?, and 2) Can fluvial-hydraulic models make accurate predictions of bed load transport rates? Our study was conducted in...
Resource Type:: Masters Thesis
Full Text:: presented on June 6th. 2016. Title: Sediment Transport Modeling and Implications for Benthic Primary

Short-term relationship of timber management and Pacific giant salamander populations, and the response of larval stream amphibian to predators under differing sediment levels

Creator:: Leuthold, Niels C.
Abstract:: In the Pacific Northwest, multiple studies have found negative effects of timber harvest on stream amphibians, but the results have been highly variable and region-specific. In this collection of studies, I examined the short term effect of timber harvest using a field study, and used lab work to examine a...
Resource Type:: Dissertation
Full Text:: Populations, and the Response of Larval Stream Amphibian to Predators Under Differing Sediment Levels

Influence of log truck traffic and road hydrology on sediment yield in western Oregon

Creator:: Miller, Rebecca H.
Abstract:: An understanding of the factors that influence surface erosion from roads is necessary to prevent and mitigate sediment production from forest roads. This study investigated the impacts of log truck traffic and road hydrology on sediment yield from ten forest road segments in the foothills of the Cascade Mountains of...
Resource Type:: Masters Thesis
Full Text:: : Influence of Log Truck Traffic and Road Hydrology on Sediment Yield in Western Oregon. Abstract

Two-stage opening of the northwestern basin and range in eastern Oregon : evidence from the Miocene Crane basin

Creator:: Milliard, Justin B.
Abstract:: New data are presented that provide evidence for the onset of extensional deformation in the Northwestern Basin and Range within 1 million years after the eruption of the Steens Basalt at 16.5 Ma. New geologic mapping (1:24,000), stratigraphic sections, and ⁴⁰Ar/³⁹Ar dating of the Crane Basin rocks provide a control...
Resource Type:: Masters Thesis
Full Text:: with numerous people about the geology of eastern Oregon. Andrew Meigs, Anita Grunder, John Dilles

Dam removals and downstream bar-pool morphology

Creator:: Zunka, John Page Purnell
Abstract:: Bar-pool morphology in rivers can provide vital habitat to aquatic species, notably salmonids, which require gravel riffles to bury eggs and pools for hydraulic and cold-water refuge. In some cases, the erosion and subsequent deposition of coarse sediment downstream of a dam removal can modify habitat by inundating bar-pool structure,...
Resource Type:: Masters Thesis
Full Text:: - water refuge. In some cases, the erosion and subsequent deposition of coarse sediment downstream of a

ScholarsArchive@OSU

Experimental and numerical analysis of transport in saturated heterogeneous media

Deciphering Quaternary Geomagnetic, Glacial, and Depositional Histories Using Paleomagnetism in Tandem with Other Chronostratigraphic and Sedimentological Approaches

Deep-sea sediment paleomagnetism : a case study from the North Atlantic

Geoarchaeological Investigations at the Devils Kitchen Site (35CS9), Southern Oregon Coast

Sediment reservoir dynamics on steepland valley floors : influence of network structure and effects of inherited ages

Sediment transport modeling and implications for benthic primary producers in Oak Creek, OR

Short-term relationship of timber management and Pacific giant salamander populations, and the response of larval stream amphibian to predators under differing sediment levels

Influence of log truck traffic and road hydrology on sediment yield in western Oregon

Two-stage opening of the northwestern basin and range in eastern Oregon : evidence from the Miocene Crane basin

Dam removals and downstream bar-pool morphology

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