JavaScript is disabled for your browser. Some features of this site may not work without it.
Scholars' Bank will
be on a content freeze from 9/6 - 9/16 as we transition to a new & improved version. Minimal downtime expected
on 9/16. Stay tuned for more updates!
Browsing Geological Sciences Theses and Dissertations by Issue Date
Navigation
Display Options
Results
Now showing items 1-20 of 164
-
(University of Oregon, 1931-06)
-
(University of Oregon, 1964)Many post-middle Oligocene bodies of intrusive rocks are located in the southern Willamette Valley near Eugene, Oregon. Six of these which fora topographic highs, Creswell Butte, Spencer Butte, East Butte, Skinner ...
-
(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, ...
-
(University of Oregon, 1977-09)The purpose of this project was twofold - to synthesize several electron microprobe glass standards in the system: SiO2 - Al 2O 3 -- Cao -- MgO, and to utilize these standards in empirically calculating a set of binary ...
-
(University of Oregon, 2007-12)Klyuchevskoy volcano, located in Kamchatka's subduction zone, is one of the most active arc volcanoes in the world and contains some of the highest 8180 values for olivines and basalts. I present an oxygen isotope and melt ...
-
(University of Oregon, 2008-06)Volatiles, particularly H 2 O, play an important role in subduction zone magmatism, from instigating melting of the mantle wedge to influencing the explosivity of eruptions at the surface. To better understand both small-scale ...
-
(University of Oregon, 2008-09)SAR data constrain deformation of the Portuguese Bend landslide in space and time, and its movement is found to correlate with seasonal rainfall. Traditional InSAR methods estimate an average downslope displacement rate ...
-
Effects of noise on teleseismic T* estimation and attenuation tomography of the Yellowstone region (University of Oregon, 2009-06)Studies on seismic attenuation are an important complement to those on seismic velocity, especially when interpreting results in terms of temperature. But estimation of attenuation (t*) is more computationally involved and ...
-
(University of Oregon, 2009-06)This dissertation explores several important consequences of H 2 O-rich fluids in magmatic and ore-forming systems within continental arc crust. North Sister, a stratovolcano in the Oregon High Cascades, provides a ...
-
(University of Oregon, 2009-09)Spatial and temporal patterns of movement of the Boulder Creek earthflow were investigated using 26 interferograms derived from ALOS satellite radar images acquired between February 2007 and February 2008. Persistently ...
-
(University of Oregon, 2009-09)Different models have been proposed for the "drumbeat" earthquakes that accompanied recent eruptive behavior at Mount St. Helens. Debate continues as to whether seismicity is related to brittle failure during the extrusion ...
-
(University of Oregon, 2009-09)This dissertation establishes the age, depositional environment, composition, and climatic conditions for the Cape Blanco flora. The paleotemperature estimated by the Cape Blanco flora, the Temblor flora of California, and ...
-
(University of Oregon, 2009-09)I present an alternative approach to determine the magnitude and direction of extension in the Basin and Range Province at the north end of Summer Lake basin using GIS techniques. Offset across 161 faults and tilting of ...
-
(University of Oregon, 2009-12)This dissertation discusses the contribution of deep-seated landslides and earthflows to the morphology, erosion, and evolution of mountainous landscapes, focusing on the northern California Coast Ranges. In active ...
-
(University of Oregon, 2010-03)Deformation across plate boundaries often occurs over broad zones with relative motions between plates typically accommodated by faults of different styles acting together in a complex system. Collision of the Yakutat ...
-
(University of Oregon, 2010-03)Excess melt production due to the interaction between the northern Mid-Atlantic Ridge and the Iceland mantle plume generates anomalously thick oceanic crust. Observed V-shaped gravity anomalies on the Reykjanes Ridge ...
-
(University of Oregon, 2010-06)Burrowing rodents are important ecosystem engineers in today's environments. The fossil record offers the opportunity to study patterns and processes in the evolution of the burrowing rodent guild through the Cenozoic. ...
-
(University of Oregon, 2010-06)The bedrock aquifer of the Southern Willamerte Basin, Oregon, USA, is contaminated with arsenic at concentrations as high as several ppm. Single-well push-pull tests were conducted to investigate how microbial metabolisms ...
-
(University of Oregon, 2010-12)To explain the origin of several distinct aspects of the Galápagos volcanic hotspot, such as the broad geographical extent of recent volcanism and the unusual pattern of geochemical anomalies, we conducted seismic tomography ...
-
(University of Oregon, 2011-03)Volatile components (H 2 O, CO 2 , S, Cl) dissolved in magmas influence all aspects of volcanic activity from magma formation to eruption explosivity. Understanding the behavior of volatiles is critical for both mitigating ...
Now showing items 1-20 of 164