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Geological Sciences Theses and Dissertations
Recent Submissions
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Peng, Amanda
(University of Oregon, 2024-08-07)
The evolution of mammalian biodiversity is a complicated process with many complex drivers and mechanisms. It has been a topic of unique interest for several centuries and has been explored from multiple angles. Frequently, ...
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Obeidy, Chelsea
(University of Oregon, 2024-08-07)
Soil and water quality are global concerns that significantly impact human health and the environment. As the demand for soil and water resources increases, it is essential to understand the reactions that govern the fate ...
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Wachino, Ian
(University of Oregon, 2024-08-07)
Rockfall is a common occurrence in steep mountainous terrain which poses a hazard to nearby communities. It is useful to determine the likelihood of rockfall initiating from a given location, or rockfall susceptibility, ...
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Bussard, Rebecca
(University of Oregon, 2024-08-07)
This dissertation utilizes a variety of mapping techniques to explore surface and subsurface processes at different volcanic systems. As each volcanic system is unique, it is important to understand which mapping methods ...
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Abib, Nicole
(University of Oregon, 2024-08-07)
Mass loss from tidewater glaciers worldwide has increased in recent decades, partially attributed to changes occurring at the ice-ocean interface. The melting of the Greenland and Antarctic Ice Sheets have contributed up ...
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Small, David
(University of Oregon, 2024-08-07)
This dissertation focuses on studying past and future large subduction zone earthquakes through creating and utilizing a stochastic slip rupture modeling technique in combination with deformation and tsunami modeling. Here, ...
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Lien, Rudi
(University of Oregon, 2024-08-07)
The planet Venus appears to be the only geologically active planet in the solar system at present, aside from Earth. This long-sustained activity is reflected by globally distributed tectonic and volcanic features and ...
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Nye, Tara
(University of Oregon, 2024-08-07)
This dissertation investigates different approaches for improving modeling ofearthquake ground motion by focusing efforts on the different physical properties which
are traditionally thought to contribute to shaking–– the ...
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Balogun, Fatai
(University of Oregon, 2024-03-25)
Contamination of ground and well water by Cr and V from anthropogenic and geogenic sources has gained considerable attention over the last few decades due to environmental and public health concerns. The specific threat ...
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Caggiano, Joseph
(University of Oregon, 2024-01-10)
Planetary magnetic fields in our Solar System exhibit a wide range of configurations, from unmagnetized Venus and Mars to the complex dipole magnetic fields of Uranus and Neptune. This dissertation investigates the influence ...
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Tate-Jones, Kellum
(University of Oregon, 2024-01-10)
Seals, sea lions, walruses, and their extinct relatives and ancestors have played a critical role in marine ecosystems for over 25 million years. Known collectively as pinnipeds, these secondarily aquatic animals are unique ...
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Sheppard, Jonathan
(University of Oregon, 2024-01-09)
Landslides are difficult to predict due to the influence of variable geologic and environmental factors, such as geomechanical properties, rainfall, ground saturation, topography, and earthquakes, exert on the probability ...
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Olsen, Ellen
(University of Oregon, 2024-01-09)
The oxygen isotopic composition of calcite is widely used in paleoclimate studies to infer the temperatures of carbonate formation across a wide range of geologic environments including hydrothermal veins, caves, lakes, ...
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Klema, Nathaniel
(University of Oregon, 2024-01-09)
Geomorphology leverages the competition between processes of uplift and erosion to infer geologic time-scale forcing on the earth's upper crust. While this framework has revolutionized our understanding of global mountain ...
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Wiejaczka, Joshua
(University of Oregon, 2024-01-09)
Detailed field studies of past eruptions contribute to constraining the input parameters used to forecast tephra dispersion and mitigate potentially fatal volcanic hazards. It is thus of the utmost importance to understand ...
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Maynard, Leroy Carson
(University of Oregon, 1974-06)
The purpose of this investigation is to contribute information
about High Cascade volcanoes by studying one of them, Mt. McLoughlin, in detail. The study provides data on 1) the distribution and abundance of rock types, ...
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Fisk, Harold N.
(University of Oregon, 1931-06)
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Lin, Jiun-Ting
(University of Oregon, 2023-03-24)
This dissertation summarizes the work of integrating machine-learning and traditional seismic analysis techniques into large and small earthquake problems. Earthquake early warning for large magnitude earthquakes is one ...
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Broz, Adrian
(University of Oregon, 2023-03-24)
Three to four billion years ago the surface of Mars may have been habitable. Ancient martian rocks that were subject to aqueous alteration in near-surface environments may store a record of this habitable paleoclimate, and ...
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Hager, Alexander
(University of Oregon, 2023-03-24)
Mass loss from the Antarctic and Greenland ice sheets has accelerated in recent decades and is predicted to contribute < 40 cm of mean sea level rise in the 21st Century. However, there is significant uncertainty in ...
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