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Theses/Dissertations from 2017

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Field Mapping Investigation and Geochemical Analysis of Volcanic Units within the Dinner Creek Tuff Eruptive Center, Malheur County, Eastern Oregon, Matthew Cruz

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Constraining the Holocene Extent of the Northwest Meers Fault, Oklahoma Using High-Resolution Topography and Paleoseismic Trenching, Kristofer Tyler Hornsby

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Compositional and Physical Gradients in the Magmas of the Devine Canyon Tuff, Eastern Oregon: Constraints for Evolution Models of Voluminous High-silica Rhyolites, Shelby Lee Isom

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Soputan Volcano, Indonesia: Petrological Systematics of Volatiles and Magmas and Their Bearing on Explosive Eruptions of a Basalt Volcano, Syegi Lenarahmi Kunrat

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Melting in the Mantle Wedge: Quantifying the Effects of Crustal Morphology and Viscous Decoupling on Melt Production with Application to the Cascadia Subduction Zone, Jiaming Yang

Theses/Dissertations from 2016

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Arsenic Mobilization from Silicic Volcanic Rocks in the Southern Willamette Valley, Gabriela Ribeiro de Sena Ferreira

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Groundwater-Surface Water Interactions near Mosier, Oregon, Cullen Brandon Jones

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Silicic Volcanism at the Northern and Western Extent of the Columbia River Basalt Rhyolite Flare-up: Rhyolites of Buchanan Volcanic Complex and Dooley Mountain Volcanic Complex, Oregon, Adam M. Large

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Geothermometry of Two Cascade Geothermal Systems, Donnel Alexander Malkemus

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Slope Failure Detection through Multi-temporal Lidar Data and Geotechnical Soils Analysis of the Deep-Seated Madrone Landslide, Coast Range, Oregon, Michael Scott Marshall

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Hydrogeochemical Evaluation of the Uinta Formation and Green River Formation, Piceance Creek Basin, Northwestern Colorado, USA, Megan E. Masterson

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Sedimentologic changes in the deposits of an evolving lahar-flood in 2006, Hood River Basin, Mount Hood, Oregon, Matthew Ray Poole

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Field Geology and Petrologic Investigation of the Strawberry Volcanics, Northeast Oregon, Arron Richard Steiner

Theses/Dissertations from 2015

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Landforms along the Lower Columbia River and the Influence of Humans, Charles Matthew Cannon

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Naturally Occurring Background Levels of Arsenic in the Soils of Southwestern Oregon, Heather Ann Hurtado

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Effects of Aerial Exposure on Preservation of Low-Temperature Calothrix Biosignatures in Silica Sinter from Queen's Laundry, Yellowstone National Park, USA, Shana Kendall

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Debris Flow Susceptibility Map for Mount Rainier, Washington Based on Debris Flow Initiation Zone Characteristics from the November, 2006 Climate Event in the Cascade Mountains, Kassandra Lindsey

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Quaternary Chronology and Stratigraphy of Mickey Springs, Oregon, Leslie Allen Mowbray

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Glacier Change on the Three Sisters Volcanoes, Oregon: 1900-2010, Justin George Ohlschlager

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Hydrogeologic Investigation of a Pumice Aquifer, Fremont/Winema National Forest, Oregon, Jonathan Michael Weatherford

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Defining the Terroir of the Columbia Gorge Wine Region, Oregon and Washington, USA Using Geographic Information Systems (GIS), Hilary Whitney

Theses/Dissertations from 2014

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Chemical and Petrographic Survey of Large, Igneous-Textured Inclusions in Ordinary Chondrites, Katherine Armstrong

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Strontium, Lead, and Oxygen Isotopic Signatures of Mid-Miocene Silicic Volcanism in Eastern Oregon, Emily Nancy Hess

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Relational Database Analysis of Dated Prehistoric Shorelines to Establish Sand Partitioning in Late Holocene Barriers and Beach Plains of the Columbia River Littoral Cell, Washington and Oregon, USA, Tamara Causer Linde

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Revisiting Volcanology and Composition of Rhyolites and Associated REE Rich Mafic Clasts of the Three Fingers Caldera, SE Oregon, Phillip Ira Marcy

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Investigating the Link Between Surface Water and Groundwater in the Tule Lake Subbasin, Oregon and California, Esther Maria Pischel

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The West Tidewater Earthflow, Northern Oregon Coast Range, Barry A. Sanford

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Complex Thermal Histories of L Melt Breccias NWA 5964 and NWA 6580, Kristy Lee Schepker

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The Geology and Petrology of Enigmatic Rhyolites at Graveyard and Gordon Buttes, Mount Hood Quadrangle, Oregon, Elizabeth G. Westby

Theses/Dissertations from 2013

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A Characterization of Lake Abert Tufa Mounds Lake Abert, Oregon, Anthony Lynn Bartruff

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Characterization of the Shallow Subsurface Geohydrology of the Ni-les'tun Unit on the Bandon Marsh National Wildlife Refuge, Christopher Madison Beard

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Map-based Probabilistic Infinite Slope Analysis of the Stephens Creek Watershed, Portland, Oregon, Ryan Andrew Cole

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Grounding Zone Processes: Ice Mechanics and Margin Lakes, Kamb Ice Stream and Whillans Ice Stream, West Antarctica, Mason Joseph Fried

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Investigations into the Regional and Local Timescale Variations of Subglacial Drainage Networks, Justin Hiester

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Arsenic in the Soils of Northwest Oregon, Tracy Ryan Ricker

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Arsenic Mobility and Compositional Variability in High-Silica Ash Flow Tuffs, Courtney Beth Young Savoie

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Hydrogeologic Characterization of Dutch Canyon, Scappoose, Oregon, Derrick Lee Wagner

Theses/Dissertations from 2012

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Groundwater Surface Trends in the North Florence Dunal Aquifer, Oregon Coast, USA, Sarah Rebecca Doliber

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Late Pleistocene and Holocene Aged Glacial and Climatic Reconstructions in the Goat Rocks Wilderness, Washington, United States, Joshua Andrews Heard

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Reservoir Evolution Following the Removal of Marmot Dam on the Sandy River, Oregon, Mackenzie Karli Keith

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Ancient Cataclysmic Floods in the Pacific Northwest: Ancestors to the Missoula Floods, Erica Medley

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Inventory and Initiation Zone Characterization of Debris Flows on Mount St. Helens, Washington Initiated during a Major Storm Event in November, 2006, Keith Vinton Olson

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Characterization of the Red Bluff Landslide, Greater Cascade Landslide Complex, Columbia River Gorge, Washington, James Robert Randall

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Origin of surface undulations at the Kamb Ice Stream grounding line, West Antarctica, Fiona Bronwyn Seifert

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Apatite Crystal Populations of the 1991 Mount Pinatubo Eruption, Philippines: Implications for the Generation of High Sulfur Apatite in Silicic Melts, Ashley Elizabeth Van Hoose

Theses/Dissertations from 2011

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Landslide Inventory Mapping and Dating using LiDAR-Based Imagery and Statistical Comparison Techniques in Milo McIver State Park, Clackamas County, Oregon, Serin Duplantis

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Designing and Using Virtual Field Environments to Enhance and Extend Field Experience in Professional Development Programs in Geology for K-12 Teachers, Frank D. Granshaw

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Hydrogeology of the McKinney Butte Area: Sisters, Oregon, Joshua Andrew Hackett

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Spatial and Temporal Variability of Glacier Melt in the McMurdo Dry Valleys, Antarctica, Matthew James Hoffman

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Potential for Speciation in Mammals Following Vast, Late Miocene Volcanic Interruptions in the Pacific Northwest, Ryan Thomas McKenna

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LiDAR-Based Landslide Inventory and Susceptibility Mapping, and Differential LiDAR Analysis for the Panther Creek Watershed, Coast Range, Oregon, Katherine A. Mickelson

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Analysis and Characterization of Debris Flows in November, 2006, Mount Adams, Washington., Kendra Justine Williams

Theses/Dissertations from 2010

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Initiation zone characterization of debris flows in November, 2006, Mount Hood, Oregon, Rachel Pirot

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Using Turbidity Monitoring and LiDAR-Derived Imagery to Investigate Sources of Suspended Sediment in the Little North Santiam River Basin, Oregon, Winter 2009-2010, Steven Sobieszczyk

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Model Analysis of the Hydrologic Response to Climate Change in the Upper Deschutes Basin, Oregon, Michael Scott Waibel

Theses/Dissertations from 2005

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A Tale of Three Sisters: Reconstructing the Holocene glacial history and paleoclimate record at Three Sisters Volcanoes, Oregon, United States, Shaun Andrew Marcott

Theses/Dissertations from 2002

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Hydrogeologic Investigation of the Klamath Marsh, Klamath County, Oregon, Jason Michael Melady

Theses/Dissertations from 2000

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Establishing the Inundation Distance and Overtopping Height of Paleotsunami from the Late-Holocene Geologic Record at Open-Coastal Wetland Sites, Central Cascadia Margin, Robert B. Schlichting

Theses/Dissertations from 1993

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Hydrogeochemical Characterization of the Alvord Valley Known Geothermal Resources Area, Harney County, Oregon, Anna Maria St. John

Theses/Dissertations from 1990

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Geochemical Evolution of Ferruginous Bauxite Deposits in Northwestern Oregon and Southwestern Washington, Joseph Michael Fassio

Theses/Dissertations from 1988

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A geochemical study of the Eagle Creek Formation in the Columbia River Gorge, Oregon, Rachel Ann Carlin

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Dynamics of intermediate-size stream outlets, northern Oregon coast, Ellen Eberhardt

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Metasomatism between amphibolite and metaultramafic rocks during upper amphibolite facies metamorphism, Tobacco Root Mountains, southwest Montana, William Robert McCulloch

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Rock slope stability studies in Siskiyou National Forest, Greg Visconty

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Geochemical stratigraphy of the Dooley rhyolite breccia and Tertiary basalts in the Dooley Mountain quadrangle, Oregon, David Neale Whitson

Theses/Dissertations from 1987

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An analysis of the eastern margin of the Portland basin using gravity surveys, Steven Allen Davis

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Stratigraphic model of the southern portion of the Jim Bridger coal field, Sweetwater County, Wyoming, Paul S. Maywood

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A seismic refraction study of a portion of the northeastern margin of the Tualatin Valley, Oregon, David John Nazy

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Explosion structures in Grande Ronde basalt of the Columbia Riverbasalt group, near Troy, Oregon, Leonard Lee Orzol

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Stratigraphic and geochemical evolution of the Glass Buttes complex, Oregon, Richard Louis Roche

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Stratigraphy of the Ohanapecosh Formation north of Hamilton Buttes, southcentral Washington, Cynthia Marie Stine

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Development and application of some quantitative stratigraphic techniques to the Coos Bay coalfield, a Tertiary fluvio-deltaic complex in southwestern Oregon, Willard Sidney Titus III

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Textural and mineralogical characteristics of altered Grande Ronde basalt, northeastern Oregon : a natural analog for a nuclear waste repository in basalt, Paul M. Trone

Theses/Dissertations from 1986

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The stratigraphy and structure of the Columbia River basalt group in the Salmon River area, Oregon, Martin S. Burck

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Stratigraphic and petrologic analysis of trends within the Spencer Formation sandstones : from Corvallis, Benton County, to Henry Hagg Lake, Yamhill and Washington counties, Oregon, Brent Joseph Cunderla

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The engineering geology of the Fountain Landslide, Hood River County, Oregon, Susanne L. D'Agnese

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The structural controls of the Vale Rhinehart Buttes complex, Vale KGRA, Malheur County, Oregon, John Timothy Doerr

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The Geology, Geochemistry, and Alteration of Red Butte, Oregon: A Precious Metal-Bearing Paleo Hot Spring System, Carol Susan Evans

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The stratigraphy of the Scappoose formation, the Astoria formation, and the Columbia River basalt group in northwestern Columbia County, Oregon, Nancy Tompkins Ketrenos

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Tephrostratigraphy of the middle Eocene Chumstick Formation, Cascade Range, Douglas County, Washington, Matthew John McClincy

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Biostratigraphy of the Cowlitz Formation in the upper Nehalem River Basin, northwest Oregon, Neil B. Shaw

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A groundwater flow model of the aquifer intercommunication area, Hanford site, Washington, Elizabeth Gail Simkover

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A stratigraphic-geochemical study of the Troutdale Formation and Sandy River Mudstone in the Portland basin and lower Columbia River Gorge, Rodney Duane Swanson

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The geology and hydrothermal alteration of the Bear Creek Butte area, Crook County, central Oregon, Richard Matthew Wilkening

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Geology of the Willamette Pass area, Cascade Range, Oregon, Neil M. Woller

Theses/Dissertations from 1985

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Provenance study of late Eocene arkosic sandstones in southwest and central Washington, Mark Edward Byrnes

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Structure and evolution of the Horse Heaven Hills in south-central Washington, Michael Curtis Hagood

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Geochemistry of alteration and mineralization of the Wind River gold prospect, Skamania County, Washington, Krista I. McGowan

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Geology and geochemistry of hydrothermal alteration, eastern portion of the North Santiam mining area, J. Michael Pollock

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Preliminary investigation for underground storage of pipeline gas in the Bruer and Flora pools, Mist gas field, Columbia County, Oregon, Paul Joseph Townley

Theses/Dissertations from 1984

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Geology, Alteration and Mineralization of a Silicic Volcanic Center, Glass Buttes, Oregon, Michael James Johnson

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Quaternary volcanology of the West Crater-Soda Peaks area, southern Washington Cascade Range, David R. Polivka

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Stratigraphy and sedimentology of Paleogene arkosic and volcaniclastic strata, Johnson Creek-Chambers Creek area, southern Cascade Range, Washington, Warren Jon Winters

Theses/Dissertations from 1983

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Depositional model of the Antelope Coal Field, Wyoming, Christine M. Budai

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A study of the diagenesis of the overburden between the Badger and School Coal Seams, Dave Johnston Coal Field, Converse County, Wyoming, Rebecca K. Jaffer

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Holocene geologic history of the Clatsop Plains foredune ridge complex, David Karl Rankin

Theses/Dissertations from 1981

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Stratigraphy, lithofacies, and environment of deposition of the Scappoose formation in central Columbia County, Oregon, Kevin Blair Kelty

Theses/Dissertations from 1980

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Geophysical and geochemical analyses of selected Miocene coastal basalt features, Clatsop County, Oregon, Virginia Josette Pfaff

Theses/Dissertations from 1979

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The geology and geochemistry of the North Fork stock, northeastern Oregon, David Joseph Matty

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A geophysical definition of a Klamath Falls graben fault, Cynthis Ann Veen