Index Catalog // ScholarsArchive@OSU

Groundwater Flow Modeling at Santa Susana Field Laboratory

Creator:: Gardner, Gerrit T.
Abstract:: Understanding groundwater flow in faulted and fractured rock is an important frontier in the field of environmental remediation and in the management of water resources. One example of a site where this is particularly evident is the Santa Susana Field Laboratory (SSFL) in Ventura County, CA where environmental remediation activities...
Resource Type:: Masters Thesis
Full Text:: Modeling at Santa Susana Field Laboratory, California. Abstract approved

Petrologic Investigations into the Magmatic Processes That lead to Au, Ag, and Base Metal Fertility: Insights from Pebble, Alaska and the Emigrant Pass Volcanic Field, Nevada

Creator:: Olson, Nansen H.
Abstract:: Magmatic-hydrothermal ore deposits are giant geochemical anomalies in the earth’s crust most often generated by normal magmatic terrestrial processes. They are often associated with oxidized and hydrous intermediate to highly evolved magmas that have concentrated metals and have the necessary components to efficiently extract and transport them as ascending magmatic-hydrothermal...
Resource Type:: Dissertation
Full Text:: : Insights from Pebble, Alaska and the Emigrant Pass Volcanic Field, Nevada Abstract approved

Prey Patch Patterns Predict Habitat Use by Top Marine Predators with Diverse Foraging Strategies

Creator:: Benoit-Bird, Kelly J., Battaile, Brian C., Heppell, Scott A., Hoover, Brian, Irons, David, Jones, Nathan, Kuletz, Kathy J., Nordstrom, Chad A., Paredes, Rosana, Suryan, Robert M., Waluk, Chad M., and Trites, Andrew W.
Abstract:: Spatial coherence between predators and prey has rarely been observed in pelagic marine ecosystems. We used measures of the environment, prey abundance, prey quality, and prey distribution to explain the observed distributions of three co-occurring predator species breeding on islands in the southeastern Bering Sea: black-legged kittiwakes (Rissa tridactyla), thick-billed...
Resource Type:: Article
Full Text:: that makes trips of moderate distance (kittiwakes), a deep diver that makes trip of short distances

Transdisciplinary Research in Water Sustainability: What’s in it for an Engaged Researcher-Stakeholder Community?

Creator:: Chan, Samuel, Ferguson, Laura, Santelmann, Mary V., and Tilt, Bryan
Abstract:: This study uses semi-structured interviews and an online survey to explore the structure, challenges and outcomes of a five-year National Science Foundation-funded water scarcity modelling project in the Willamette River Basin of Oregon, USA. The research team chose to facilitate broader impacts by engaging stakeholders from the study’s inception (e.g....
Resource Type:: Article
Full Text:: . The team used various engagement formats (field trips, small and large group meetings) and

Application of Cosmogenic Nuclides and Argon Geochronology to Paleoclimate, Paleomagnetism, and Paleohydrology

Creator:: Balbas, Andrea M.
Abstract:: This dissertation uses argon geochronology and cosmogenic nuclide surface exposure dating methods to address three research questions. The first question concerns a geomagnetic instability recorded in lava flows on the island of Floreana in the Galapagos Archipelago. Changes in the Earth’s magnetic field (intensity and orientation) occur frequently throughout geologic...
Resource Type:: Dissertation
Full Text:: Earth’s magnetic field (intensity and orientation) occur frequently throughout geologic time for reasons

Developing a Strategic Conservation Project for the Oregon Coast Aquarium

Creator:: Prendergast, Lisa D.
Abstract:: This study developed a strategic conservation project for the Oregon Coast Aquarium in Newport, Oregon focusing on a signature species and this aquarium’s conservation focus areas (i.e., marine debris, sustainable fisheries, water quality, climate change). This study also examined the potential for incorporating an ecotourism or wildlife tourism component to...
Resource Type:: Capstone Project
Full Text:: unique field experience. The first phase involved species identification using database analysis and

Structural Evolution, Vein Orientation, and Paragenesis of the Botija Porphyry Cu-Mo-(Au) Deposit, Colón, Panamá

Creator:: Sepp, Michael D.
Abstract:: The Botija Cu-Mo-Au porphyry deposit is located in the Cobre Panamá mining district, which contains several deposits with a global measure and indicated and inferred resource of 14.8 MT of Cu. These deposits are associated with the Cerro Petaquilla batholith, which has U/Pb zircon ages of 26-33 Ma (Whattam et...
Resource Type:: Masters Thesis
Full Text:: some cases correspond to observed faults, and together with other faults mapped in field exposures

Carbon Isotope Chemostratigraphic Correlation of the Noonday Formation

Creator:: Morris, Justin
Abstract:: The Marinoan Snowball Earth ended 635 Ma ago during the Neoproterozoic Era, after an interval in which the Earth was completely covered by glaciers. Thawing of these glaciers formed cap carbonates across shallow marine depositional environments. The Noonday Formation is a cap carbonate that formed after the deglaciation of the...
Resource Type:: Research Paper
Full Text:: Valley Region, California and Nevada: Geological Society of America Field Trip 1 (1974): 73-78

Is dam development a mechanism for human security? Scale and perception of the Grand Ethiopian Renaissance Dam on the Blue Nile River in Ethiopia and the Xayaburi Dam on the Mekong River in Laos

Creator:: Veilleux, Jennifer Corinne
Abstract:: Human security is a framework related to the stability and sustainability of political, environmental, economical, and socio-cultural areas of concern. Water resources around the world are under increased pressure from increased development, growing populations, pollution, and global climate change. Large-scale dam development while still popular for political and economic development...
Resource Type:: Dissertation
Full Text:: indices and field-generated qualitative interviews and observations are employed to understand how

Development from a Distance: Exploring International Non-profit Interactions with Communities during the COVID-19 Pandemic

Creator:: Peiffer, Ashley K.
Abstract:: The COVID-19 pandemic impacted the international development sector through various external and internal stressors. Community engagement practices that international non-governmental organizations and non-profits conducted were disrupted by the pandemic, and communities were faced additional challenges when international development workers were required to socially distance or relocate at the onset of...
Resource Type:: Masters Thesis
Full Text:: organization’s expectations of keeping field staff and communities safe from contracting the virus

A Study of Vegetation Change Over Time in the Salt Marshes of the Salmon River Estuary, Oregon

Creator:: Schrank, Keaton A.
Abstract:: The salt marshes of the Salmon River Estuary, Oregon have been of interest for decades due to their disturbance and restoration history, as well as the presence of long-term vegetation transects that were established as early as the 1970s. Vegetation abundance data have been gathered in the four sites of...
Resource Type:: Masters Thesis
Full Text:: vegetation that were not necessarily detected in the analyses of the field vegetation data. The vegetation

An Exploration of the Research Capacity Building Potential of Informal Higher Education Marine Science Programs in an International Context

Creator:: Moskel, Jennifer M.
Abstract:: Informal higher education science learning programs are increasingly being used as a tool to build scientific research capacity. However, there is low understanding of the impact that these programs on their target audiences, which is important to future capacity building efforts and program design. The purpose of this research project...
Resource Type:: Masters Thesis
Full Text:: during the work sessions for the project-track, (c) during the labs and field trip with learners and

What lies Beneath? Origin and Transition from the Shallow Epithermal Au-Ag Lithocap to Deeper Porphyry Cu Environment: Insights from the Magmatic Hydrothermal Deposits at Yerington, Nevada, and Summitville, Colorado

Creator:: Sepp, Michael D.
Abstract:: Near-surface advanced argillic hydrothermal alteration zones, also referred to as lithocaps, are characterized by quartz, alunite, clays (pyrophyllite and kaolinite group minerals), and minor F-bearing aluminosilicates (i.e., topaz, zunyite, diaspore, and APS) that form where water-, SO2-, and HF-rich gas condenses into shallow groundwater, acidifies, and reacts with rocks. The...
Resource Type:: Dissertation
Full Text:: in the lithocap environment, using field and mineralogical studies of two lithocaps: the Buckskin

Bimodal volcanism of the High Lava Plains and Northwestern Basin and Range of Oregon: Distribution and tectonic implications of age-progressive rhyolites

Creator:: Ford, Mark T., Grunder, Anita L., and Duncan, Robert A.
Abstract:: Multiple episodes of Oligocene and younger silicic volcanism are represented in the high lava plateau of central and southeastern Oregon. From 12 Ma to Recent, volcanism is strongly bimodal with nearly equal volumes of basalt and rhyolite. It is characterized by moderate to high silica (SiO₂ > 72 wt. %)...
Resource Type:: Article
Full Text:: field evidence (Grunder, unpub- lished) for other tuffs (Hampton, Prater Creek and Devine Canyon) shown

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
Full Text:: dad, who accompanied me for a beautiful day of field work in central Oregon. Thank you to my mom

Pillaging Bloodwood: An Exploratory Examination of Illegal Deforestation in Guinea-Bissau Through Forest Disturbance Algorithms and Unsupervised Clustering Techniques

Creator:: Walters, Alexander E.
Abstract:: Environmental crime around the world, such as trafficking in illegal timber, is directly related to political instability. Traffickers exploit weak, fragile, and chaotic political circumstances to illegally extract high-value commodities, challenging the extent to which conservation goals are achievable in resource rich developing countries. Rosewood is the largest traded endangered...
Resource Type:: Masters Thesis
Full Text:: extraction identified during field research conducted in April to May 2019. Interviews conducted with

An Experimental Investigation of Interstitial Air Movement in Seasonal Snow

Creator:: Drake, Stephen A.
Abstract:: Atmospheric pressure changes do not stop at the permeable snow surface but rather propagate into it. These pressure changes range from high-amplitude, low-frequency events caused by seasonal cycles and synoptic weather systems to small-amplitude, high-frequency events caused by topographic features and turbulence. The effect of pressure changes on interstitial air...
Resource Type:: Dissertation
Full Text:: on interstitial air movement in snow? To address this question, in situ field experiments were

A Geodatabase and Digital Characterization of Wetlands Mapped in the Willamette Valley With Particular Reference to Prediction of Their Hydrogeomorphic (HGM) Class

Creator:: Adamus, Paul R.
Abstract:: This project defined criteria to allow only the use of existing spatial databases (and only those with comprehensive coverage of the ecoregion) to identify the HGM (hydrogeomorphic) class of mapped Willamette Ecoregion wetlands. The project then applied those criteria automatically and systematically to every mapped wetland in the ecoregion, resulting...
Resource Type:: Technical Report
Full Text:: . Field inspection (preferably during both wet and dry seasons) and manual (non-automated) review of

Intrusion Sequence and Hydrothermal Fluid Evolution of Encuentro Porphyry Cu-Mo-Au deposit, Northern Chile

Creator:: Osorio C., Jaime
Abstract:: This dissertation is divided into two major chapters. The first chapter covers the geologyof the Encuentro deposit with emphasis in the intrusion sequence, vein mineral assemblages and distribution, and age of mineralization. The data used for this section includes field mapping, petrography, elemental analysis of biotite, and isotopic geochronology. The...
Resource Type:: Masters Thesis
Full Text:: and distribution, and age of mineralization. The data used for this section includes field

Exploring Volcano-Tectonic Connections in Cascadia – Temporal Linkages between Tephra Deposition and Megathrust Earthquakes

Creator:: Gutierrez, Joel C.
Abstract:: Explosively erupting volcanoes and megathrust earthquakes (Mw 8+ magnitude) occur at subduction zones and adjacent volcanic arcs. Volcanic eruptions are observed occurring close in time to megathrust earthquakes in the historical record from at least the 18th century CE to present in locations globally, including Japan in 1707 CE (Chesley...
Resource Type:: Masters Thesis
Full Text:: well as Brokeoff Volcano, Lassen Domefield, and Caribou volcanic field, representing disparate and

3D vs. conventional volcanic hazard maps : a user study at Mount Hood

Creator:: Preppernau, Charles A.
Abstract:: Volcanic hazard maps inform the public on the nature and extent of the hazards that threaten them, but these maps are often challenging for those who are not trained in map use or geology. The maps in this study focus on lahars, a dangerous, fast, and far-reaching volcanic hazard that...
Resource Type:: Masters Thesis

An evaluation of a water, sanitation, and hygiene (WASH) program for rural communities in northern Afghanistan

Creator:: Costello, Denise H.
Abstract:: The Water, Sanitation and Hygiene (WASH) sector of international development works to increase access to sustainable, safe water and improved sanitation. Currently, at least 780 million people live without clean drinking water and 2.5 billion without access to improved sanitation (UNICEF & World Health Organization, 2012). Lack of access to...
Resource Type:: Masters Thesis
Full Text:: used to collect latitude and longitude location of important points during the field research

Late Holocene Earthquake History Recorded in Alluvial Fan Sequences, Panamint Valley, Eastern California

Creator:: Sethanant, Israporn
Abstract:: The Panamint Valley fault zone (PVFZ) is an active, dextral-oblique normal fault that partially accommodates dextral shear across the Eastern California Shear Zone (ECSZ). The fault system has a complex geometry, characterized by a relatively high-angle dextral oblique normal fault in the south and a low-angle detachment system that accommodates...
Resource Type:: Masters Thesis
Full Text:: insightful advice to help improve this research along the way. I am grateful for my field assistants

The 3.1 Ma to 100 ka Goat Rocks Volcanic Complex: Persistence and Evolution of Magmatism at a Long-Lived Major Andesite Locus on the Cascade Arc

Creator:: Wall, Kellie T.
Abstract:: The imposing andesite stratovolcano is the characteristic expression of subduction zone magmatism, posing hazards to coastal populations and bearing insight into deep Earth processes. On a map of a typical volcanic arc, one can easily distinguish the approximately linear alignment and regular spacing of these major edifices that stand out...
Resource Type:: Dissertation
Full Text:: intraplate-type basalts (IPB) of Mount Adams and Simcoe volcanic field. These results lead to three

Cooperative product development between researchers and commercial fishermen to find applications for ocean condition forecasting technology

Creator:: Duncan, Colin
Abstract:: This is a case study of the cooperative development of an ocean condition forecasting tool by Oregon commercial fishermen, Oregon State University (OSU) scientists, and OSU student software engineers. Ocean condition forecasting models developed by OSU scientists were used to create an online tool to assist decision-making for fishermen. This...
Resource Type:: Masters Thesis
Full Text:: the needs of the fishermen, “digest” the field data, and contribute findings to the design process

North Atlantic Climate and Cryosphere Variability Over the Past 20,000 Years

Creator:: Sinclair, Gaylen
Abstract:: Reconstructing the sensitivity of past climate to forcings, and of ancient glaciers and ice sheets to this climate, can allow us to better understand the range of climate and cryosphere behavior we may see in the coming centuries. The Arctic is a region of particular importance due to its well-documented...
Resource Type:: Dissertation
Full Text:: wilderness of our 2014 Greenland field trip. Anders Carlson and Dylan Rood made our Svalbard field work in

On the Edge : Assessing Fish Habitat Use Across the Boundary between Pacific Oyster Aquaculture and Eelgrass in Willapa Bay, WA

Creator:: Muething, Kelly A.
Abstract:: Estuaries are an important ecological link between terrestrial, freshwater, and marine systems, but are also subject to a variety of human pressures. Along the West Coast of the United States, shellfish aquaculture is one extensive use of estuarine tidelands. Specifically, Pacific oyster (Crassostrea gigas) aquaculture has been practiced for almost...
Resource Type:: Masters Thesis
Full Text:: to express sincere gratitude to all those who helped in the field and lab: Allie Blanchette, Katie

Oregon’s Non-Consumptive Recreational Ocean User Community : Understanding an Ocean Stakeholder

Creator:: Eardley, Christopher S. and Conway, Flaxen D. L.
Abstract:: Oregon is in the midst of major changes to the way it manages use of the ocean off its shores. Consideration for all stakeholder groups will contribute to defensible decisions regarding the use of ocean and coastal resources. This relies on an understanding of the various stakeholders in ocean resources,...
Resource Type:: Capstone Project
Full Text:: distance traveled to recreate, 35 percent were traveling more than 150 miles per round trip, and 53

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
Full Text:: transient topography because the basin’s western margin is within 100 km of the Yellowstone Volcanic Field

Spatial relationships for vegetation in restored and reference salt marshes in the Salmon River Estuary, Oregon

Creator:: Chellew, Megan
Abstract:: In this thesis, the spatial patterns of vegetation and soils of reference and restored tidal marshes were compared to determine the extent to which restored sites differ from the reference site after 40 years of restoration. Vegetation surveys of 1m x 1m plots were conducted along previously-established transects of salt...
Resource Type:: Masters Thesis
Full Text:: ............................................................................................................ 9 INFLUENCE OF PLOT PARAMETERS ON FIELD RESEARCH

Understanding the economic benefits of tidal wetlands restoration

Creator:: Shaw, Graham R.
Abstract:: Habitat restoration projects are vital for recovering ecosystems, but they can be expensive. One way to help justify the price tag is to value the economic benefits provided by the restored habitat. The issue is that many ecosystem services and the flow of benefits they produce are complex, requiring careful...
Resource Type:: Masters Thesis

The Environmental, Economic, and Social Factors that Contribute to the Importance of the Pacific Razor Clam (Siliqua patula) Fishery for Oregon Coastal Communities: A Northern Oregon Case Study

Creator:: Baker, Laura C.
Abstract:: Pacific razor clams (Siliqua patula) are narrow oblong bivalves that can be found in sandy habitats along the western coast of the United States, from Alaska (Aleutian Islands) to southern California (Pismo Beach). In Washington state, the razor clam fishery has been documented to be an important contributor to the...
Resource Type:: Masters Thesis
Full Text:: Expenditures per Recreational Digger Trip for all Shellfish Harvest in Oregon………………….………………….…………….31 5

Citizen Science Research : A Focus on Historical Whaling Data and a Current Marine Mammal Citizen Science Project, Whale mAPP

Creator:: Hann, Courtney
Abstract:: Citizen science work has built the foundation of much of our knowledge on regional-scale large cetacean spatial patterns through historical whaling data. Historical whaling data on sperm whales was used as an example to show the type of ecological questions large-scale, long-term citizen science datasets can address. Results from the...
Resource Type:: Masters Thesis
Full Text:: Scholarship. Thank you to the Alaska Whale Foundation for the Graduate Fellowship that supported my field

Competing Roles of Sea Level Rise and Sediment Supply on Sediment Accretion and Carbon Burial in Tidal Wetlands; Northern Oregon, USA

Creator:: Peck, Erin K.
Abstract:: Quantification of contemporary sediment and carbon accumulation within Oregon tidal saline wetlands will: (1) fill a critical knowledge gap, and (2) naturally test without complicating variables whether sea level rise or sediment supply primarily control wetland growth. Here we measure vertical accretion rates and carbon burial rates in three Oregon...
Resource Type:: Masters Thesis
Full Text:: the field, laboratory, and office. Without his mentorship, this project would not have been possible

Modeling sea level rise impacts to Oregon’s tidal wetlands : Maps and prioritization tools to help plan for habitat conservation into the future

Creator:: Brophy, Laura S. and Ewald, Michael J.
Abstract:: Background: Tidal wetlands are important habitats for salmon and a diversity of other fish and wildlife species. They also trap sediment, buffer coastal communities from flooding and erosion, and perform other valued ecosystem services. Tidal wetlands currently exist just at and above sea level, and healthy tidal wetlands are able...
Resource Type:: Technical Report
Full Text:: on our team’s field observations of the lower boundary of tidal marsh, as well as literature (Warren

Understanding Visitor Motivations for Attending Fee-based Animal Encounter Programs

Creator:: Huynh, Sandra
Abstract:: Education programs at zoos and aquariums provide opportunities for visitors to learn and garner information on animal natural history and, hopefully, conservation messaging. Fee-based programs (programs with an additional fee on top of admission prices), which are commonly employed by zoos and aquariums to foster learning opportunities for visitors, are...
Resource Type:: Masters Thesis
Full Text:: and knowledge strengthened after participating in a field experience rather than a classroom lesson

Sixth Oregon climate assessment

Creator:: Fleishman, Erica and Oregon Climate Change Research Institute
Abstract:: Consistent with its charge under Oregon House Bill 3543, the Oregon Climate Change Research Institute (OCCRI) conducts a biennial assessment of the state of climate change science, including biological, physical, and social science, as it relates to Oregon and the likely effects of climate change on Oregon. This sixth Oregon...
Resource Type:: Technical Report

A community-based approach for evaluating tradeoffs across marine ecosystem services in Oregon

Creator:: Freeman, Peter M.
Abstract:: As competing uses of our coastlines increase, natural resource agencies are employing marine spatial planning (MSP) to designate areas for different uses or activities in order to reduce conflicts while achieving ecological, economic and social objectives. A central challenge of implementing MSP is development of a rigorous approach for analyzing...
Resource Type:: Masters Thesis
Full Text:: incorporated into the approach. 1.2 A SYSTEMS-BASED APPROACH TO ECOSYSTEM SERVICE VALUATION Each field

Survey of the Ecological Condition and Functions of Enhanced, Restored, and Reference Wetlands in the Willamette Valley, Oregon

Creator:: Adamus, Paul R.
Abstract:: In a series of Willamette Valley wetlands, standardized protocols were used in 2009 and 2010 to primarily assess (a) vegetation species composition and (b) relative levels of ecosystem services. Of the 60 wetlands visited in one or both years, 34 were classified as riverine and 26 as flats. Of the...
Resource Type:: Technical Report
Full Text:: , enhanced, reference). See Brinson (1993) and Adamus & Field (2001) for definitions of riverine and flats

Noble gases and coupled heat/fluid flow modeling for evaluating hydrogeologic conditions of volcanic island aquifers

Creator:: Heilweil, Victor M., Healy, Richard W., and Harris, Robert N.
Abstract:: Understanding groundwater conditions in the upland parts of volcanic island aquifers is critical for sustainable groundwater development in these resource-limited environments. Yet groundwater conditions in such settings are generally difficult to characterize because of sparse well drilling (high cost and/or limited access). Information needed for resource evaluation includes upland depth...
Resource Type:: Article
Full Text:: to concentrations using field measurements of total dissolved-gas pressure and water temperature

What's that on the beach? Designing a Protocol for the Identification and Reporting of Stranded Marine Fish, Squid, and Turtles Using the Oregon Coast as a Proof-of-Concept

Creator:: Asson, Danielle and Asson, Danielle C.
Abstract:: It is not unusual to see stranded or washed-up marine animals and birds along any coastline. Various networks nationwide exist to report marine mammals and sea birds, yet, we have been unable to find a network in Oregon or nationally to report other stranded marine animals, namely fish, cephalopods, and...
Resource Type:: Capstone Project
Full Text:: ........................................................................................... 27 2.2.2 Field guides

Disputed Spaces : Concheras, Shrimp Aquaculture, and Conservation in the Mangrove Forests of Southern Esmeraldas, Ecuador

Creator:: Treviño Peña, Melva B.
Abstract:: The mangrove ecosystem has served as a life-support system to large populations of coastal dwellers in Ecuador for many generations. Diverse communities comprised of multi-racial and multi-ethnic groups have formed along the edge of the mangrove forests throughout the Ecuadorian coast. These groups self-identify as being part of an “ancestral”...
Resource Type:: Dissertation
Full Text:: , natural spaces. Using data from interviews and observations collected in the field, this work seeks to

Insights into Centennial-Scale Salt Marsh Morphodynamics from the Oregon Coast

Creator:: Peck, Erin K.
Abstract:: Quantification and comparison of morphological changes over the last ~300 y in Oregon salt marshes provide valuable insights into the tectonic, hydroclimatic, and anthropogenic processes shaping this important intertidal zone. Understanding of the rates and drivers of salt marsh change contextualizes intertidal habitats within the sediment routing system (i.e., source...
Resource Type:: Dissertation
Full Text:: , Mike, for sharing your expertise in Illustrator, ArcGIS, and all things geology; for your field

Protection, Restoration, and Management of Terrestrial Habitats and Species of the Willamette Sub-Basin

Creator:: Adamus, Paul R.
Abstract:: This report and especially the accompanying Detail Files and MapFiles provide relatively detailed information on status, trends, distribution, limiting factors, and conservation needs of all of the Willamette’s wildlife species, listed plants, and vulnerable habitats. Data on habitat suitability for each species is provided by watershed (170 HUC6s), elevation (6...
Resource Type:: Technical Report
Full Text:: species, research into factors that limit the rarest species, and field monitoring of trends in species

Characterizing Yakima Fold and Thrust Belt structures that cross the Cascade Range at the latitude of the Columbia River

Creator:: Gordon, Gabriel
Abstract:: In eastern Washington and western Oregon, southwest-northeast striking thrust faults and folds of the Yakima Fold and Thrust Belt (YFTB) and northwest-striking dextral strike-slip faults accommodate north-south contraction resulting from clockwise rotation of the North American Plate. Though present to the east and west of the Cascade Range, the connectivity...
Resource Type:: Masters Thesis
Full Text:: Field. I can’t overstate my gratitude for Jim’s mentorship over the last seven years. I count both the

The Deschutes Formation: evidence of extension-enhanced explosivity in the early High Cascades

Creator:: Pitcher, Bradley W.
Abstract:: The eruptive history of the Quaternary Cascades arc has been relatively well characterized. However, much less is known about the frequency and sizes of explosive eruptions produced by earlier stages of the arc. The Late Neogene Deschutes Formation of Central Oregon preserves a remarkable record of heightened pyroclastic activity during...
Resource Type:: Dissertation
Full Text:: manuscript are greatly appreciated. Specifically, Anita’s passion for geology, field work, and willingness

Utilizing cooperative fisheries research to monitor and understand harmful algal blooms along the Oregon coast

Creator:: Gilliland, Raquel C.
Abstract:: Harmful algal blooms (HABs) are a problem for coastal communities, the fishing industry, and coastal organisms. Pseudo-nitzschia spp. is a regularly occurring diatom in Oregon’s coastal waters. At times, Pseudo-nitzschia spp. can facultatively produce domoic acid, a neurotoxin that can bioaccumulate in the food chain. While regular shore-based sampling provides...
Resource Type:: Masters Thesis
Full Text:: fisheries production and biogeochemical cycling (Schlesinger et al., 2011; Field et al., 1998; Stock et al

Emerging Impacts Resulting from the Implementation of the United States Pacific Coast Groundfish Trawl Rationalization Program

Creator:: Thompson, Jenny
Abstract:: On January 11, 2011, the Pacific Fishery Management Council (PFMC) instituted a catch share program for the West Coast groundfish trawl fishery. The program was intended to create a more sustainable fishery and increase economic efficiency through the use of individual fishing quotas and fishing cooperatives. While there are extensive...
Resource Type:: Capstone Project
Full Text:: participants and owners on a given fishing trip

Effects of forest roads and tree removal in or near wetlands of the Pacific Northwest : a literature synthesis

Creator:: Adamus, Paul R.
Abstract:: Because studies of forestry effects on wetlands have been so infrequent in the Pacific Northwest, each section in this report drew heavily from studies of forestry impacts to streams and riparian zones. After assembly and synthesis, that information was extrapolated, mostly in the form of hypotheses, to the very different...
Resource Type:: Technical Report
Full Text:: analyses of field data (e.g., Hansson et al. 2005, Adamus et al. 2009, Acreman et al. 2011). For example

Climate change in the Northwest : implications for our landscapes, waters, and communities

Creator:: Dalton, Meghan M., Mote, Philip W., Snover, Amy K., and Oregon Climate Change Research Institute
Abstract:: Climate Change in the Northwest: Implications for Our Landscapes, Waters, and Communities is a report aimed at assessing the state of knowledge about key climate impacts and consequences to various sectors and communities in the Northwest United States. This report draws on two recent state climate assessments in Washington in...
Resource Type:: Technical Report

Fourth Oregon climate assessment report. State of climate science : 2019

Creator:: Mote, Philip W., Abatzoglou, John, Dello, Kathie D., Hegewisch, Katherine, Rupp, David E., and Oregon Climate Change Research Institute
Abstract:: This report, required by state law under HB3543, provides a comprehensive assessment of the state of science of climate change as it pertains to Oregon, covering the physical, biological, and social dimensions. The first chapter summarizes the current state of knowledge of physical changes in climate and hydrology, focusing on...
Resource Type:: Technical Report

In the Wake of Cascadia: Overcoming the Challenges of Disaster Preparedness for the Visiting Population in Newport, Oregon

Creator:: Copeland, Patrick J.
Abstract:: Extensive research has been published on a large-scale Cascadia subduction zone (CSZ) rupture off the Oregon coast, including the requirements of evacuation, shelter, and mass care of a diverse coastal population due to earthquake and tsunami related hazards. Adequate preparedness centers around the understanding of a hazards characteristics, and the...
Resource Type:: Masters Thesis

A Multivariate Analysis of Pacific Arctic Surface Waters

Creator:: Bryant, Aleesa
Abstract:: The Pacific Arctic is undergoing rapid biogeochemical changes in response to warming air temperatures caused by climate forcing. This is manifesting as changes in seasonal sea ice thickness and sea ice extent, as well as changes in primary production within surface waters. The data and samples analyzed here were collected...
Resource Type:: Capstone Project
Full Text:: return trip. The averages show no significant difference between both transit directions. This

Fifth Oregon climate assessment

Creator:: Dalton, Meghan M., Fleishman, Erica, and Oregon Climate Change Research Institute
Abstract:: Consistent with its charge under Oregon House Bill 3543, the Oregon Climate Change Research Institute (OCCRI) conducts a biennial assessment of the state of climate change science, including biological, physical, and social science, as it relates to Oregon and the likely effects of climate change on Oregon. This fifth Oregon...
Resource Type:: Technical Report
Full Text:: community’s social and economic infrastructure (Field et al. 2012). The third section of this Assessment

Ocean Views: Characterizing Risk Perception, Uncertainty, and Decision-making Within the Ocean Condition Forecast System

Creator:: Kuonen, Jessica A.
Abstract:: Ocean users and marine scientists both have connections to the sea. This research explores how the nature of their connection to the sea leads to different perceptions of risk and comfort with uncertainty, and how these differences might be important to consider when one group has information another group needs....
Resource Type:: Masters Thesis
Full Text:: condition forecasting is a young field with diverse end users that is fragmented across different

Stratigraphic correlation of seismoturbidites and the integration of sediment cores with 3.5 kHz chirp subbottom data in southern Cascadia

Creator:: Black, Bran
Abstract:: In order to evaluate the shallow stratigraphy along the southern Cascadia abyssal margin and northern California abyssal plain, CHIRP subbottom profiles capable of imaging individual turbidite beds in the upper tens of meters of the subsurface were collected. Reflectors imaged with the 3.5 kHz CHIRP subbottom data represent turbidite beds...
Resource Type:: Masters Thesis
Full Text:: deep and 5.5 km across, with a wave field that extends ~ 17 km from the perimeter of the plunge pool

Fishing for Hypoxia: Exploring Coastal Oxygen Dynamics and Predictability of Low Oxygen Episodes through a Partnership with the Oregon Dungeness Crab Fishing Fleet

Creator:: Stoltz, Linus O.
Abstract:: Coastal hypoxia, or low oxygen episodes pose a threat to marine resources in the Pacific Northwest. Previous research into nearshore oxygen dynamics have linked coastal upwelling to this seasonally occurring phenomenon, however the manifestation of hypoxic waters over coastal fishing grounds was not well understood. Through a partnership with Dungeness...
Resource Type:: Masters Thesis
Full Text:: ...................................................................19 Figure 2.4: DDH software field view

Characterizing and Assessing the Researcher-Stakeholder Engagement Process for Water Sustainability : The Willamette Water 2100 Project

Creator:: Ferguson, Laura B.
Abstract:: Natural resource management and policy is ideally informed by the best available science. Natural resource researchers ideally participate in broader impacts activities to extend the reach of their best available research. However, there are many cultural, institutional, and practical barriers to participating in broader impact activities and to incorporating science...
Resource Type:: Masters Thesis

Indicators for Monitoring Biological Integrity of Inland, Freshwater Wetlands : A Survey of North American Technical Literature (1990-2000)

Creator:: Adamus, Paul R.
Abstract:: Potentially relevant literature for the years 1990-1999 was identified by (a) conducting keyword searches of computerized bibliographic databases, especially CAB Abstracts and Aquatic Sciences and Fisheries Abstracts, (b) reading through the tables of contents of a few especially relevant journals, (c) searching the internet for pertinent bibliographies, and (d) to...
Resource Type:: Technical Report
Full Text:: . 1996. Effects of a coal mine effluent on aquatic hyphomycetes. I. Field study. Journal of Applied

The Effects of Structure and Volcanic Stratigraphy on Groundwater and Surface Water Flow: the Hat Creek basin Case Study, California, USA

Creator:: Marcelli, Marina F.
Abstract:: Hydrogeologic systems in the southern Cascade Range develop in volcanic rocks where volcanic morphology, stratigraphy, extensional structures and attendant basin geometry play a central role in groundwater-flow paths, groundwater/surface-water interactions, and spring discharge locations. High-volume springs (> 3 m3/s) flow from young (< 1 Ma) volcanic rocks in the Hat...
Resource Type:: Masters Thesis
Full Text:: who took time out of their day to help me in the field or to understand the datasets I’ve been using

Spatiotemporal Drivers of Seabird Distribution at the Pacific Marine Energy Center off Newport, Oregon

Creator:: Porquez, Jessica M.
Abstract:: The central Oregon coast was selected as an ideal site for wave energy development and establishment of the Pacific Marine Energy Center (PMEC). PMEC will consist of two nearshore sites, one north (NETS) and one south (SETS) of the Yaquina River, Oregon. Our study aims to assess how the development...
Resource Type:: Masters Thesis
Full Text:: learned so much, and have been able to participate in wonderful field projects. Before graduate school I

Communicating oceanographic research through film : the role of film in helping scientists develop and meet their broader impacts goals

Creator:: Madlener, Saskia D.
Abstract:: Funding agencies, specifically the National Science Foundation (NSF), are placing particular emphasis on the societal relevance and broader applications of scientific research, otherwise known as Broader Impacts (BIs). Scientists are required to address the BIs merit review criterion in their research proposals or they will not get funded. However, many...
Resource Type:: Masters Thesis
Full Text:: some initial reservations and skepticism about involving an outsider in the field. I would like to

Assessing the Impact of Fishery Bait on Spatiotemporal Variation in the Feeding Ecology of Dungeness Crab (Cancer magister) Using Stable Isotopes, Gut Content Analysis & Fishermen Interviews

Creator:: Harbison, Toby N.
Abstract:: The commercial Dungeness crab (Cancer magister) fishery is Oregon’s largest trap-based fishery. Each year, crab vessels discard millions of pounds of bait, including squid, razor clams, and sardines, into the near-coastal ocean. Although the fishery season typically runs from December 1st through August 14th, most landings occur within the first...
Resource Type:: Masters Thesis
Full Text:: (1995) said that field data indicates females exhibit higher rates of cannibalism than males

Impacts of Policy and Environmental Change: Understanding Factors of Vulnerability and Resilience in the Face of Change in Oregon Fishing Communities

Creator:: Strawn, Astrea
Abstract:: Commercial fisheries are coupled human-natural systems that cross state borders and integrate private, public, academic sectors and interests. These systems integrate complicated relationships between coastal socioeconomics, resource management and environmental realms. Previous findings from West Coast-based studies have identified aging trends in commercial fisheries participation, commonly referred to as the...
Resource Type:: Masters Thesis
Full Text:: . The traineeship acts as both a one-year fellowship and a minor that includes a field camp, minor

Youth Recruitment and an Aging Workforce : A Pilot Study of Intergenerational Family Business in Oregon’s Commercial Fishing Industry

Creator:: Caracciolo, Deanna E.
Abstract:: Commercial fishing is a culturally and economically significant industry on the Oregon coast. The importance of this industry to human communities is often neglected in fisheries research, with economic and ecological data being favored by managers and decision makers. Recent observations in many coastal communities have indicated aging of fishermen...
Resource Type:: Masters Thesis

It Depends: Defining Cooperation and Evaluating Effectiveness in Transboundary Waters

Creator:: McCracken, Melissa J.
Abstract:: With the increasing international focus on transboundary cooperation as a part of the Sustainable Development Goal (SDG) Framework, there is global recognition of transboundary water cooperation as a tool for improved governance and management of transboundary surface and groundwaters. Yet, there is not an agreed upon definition of transboundary water...
Resource Type:: Dissertation

Marine Heatwaves Influence Depth Preferences of Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Teahan, Andrew
Abstract:: Marine heatwaves have become more common over the past several years. The 2014-2015 ‘warm blob’ had profound effects on marine ecosystems in the Northeast Pacific. Given the particular habitat needs of Chinook Salmon (Oncorhynchus tshawytscha) we wanted to examine the impacts of the heatwave on Chinook depth distribution. We examined...
Resource Type:: Masters Thesis

Invisibility: Environmental Migration Governance in a Changing Climate

Creator:: Abel, Kali M.
Abstract:: Climate change has the potential to accelerate many forms of human migration and mobility, yet almost all of the key migration outcomes of interest are determined predominantly by governance, or the norms, laws, and institutions involved in the coordination of human society. These outcomes include the decision whether or not...
Resource Type:: Dissertation
Full Text:: named, “Steve”. To Steve (Abel), my dad, who chaperoned the 4th grade sleepover field trip I was

Skwakol: The Decline of the Siletz Lamprey Eel Population During the 20th Century

Creator:: Downey, Tom, Rilatos, Darin, Sondenaa, Annette, and Zybach, Bob
Abstract:: It can be reasonably assumed that lamprey eel harvesting has systematically and periodically occurred along the Siletz River and its tributaries for as many hundreds, or thousands, or tens of thousands of years that human families and lamprey eel populations have coexisted in the Siletz Valley ecosystem. This report is...
Resource Type:: Technical Report
Full Text:: traveled by horseback to the Pacific Ocean. On the return trip Virgin killed a local Indian man, possibly

Investigating the Benefits and Challenges of Community Fishing Associations

Creator:: Wilson, Erin R.
Abstract:: The Magnuson Stevens Act (MSA) 2007 added Limited Access Privilege Programs (LAPP) in order to provide assistance to fishing communities and community-based associations in order to receive quota allocation. Community fishing associations (CFAs) are a type of program that falls under the LAPP. The MSA emphasizes several eligibility criteria to...
Resource Type:: Capstone Project
Full Text:: seasonal access, setting total allowable catches (TACs), gear restrictions, and trip limits on landings

Investigating the Benefits and Challenges of Community Fishing Associations

Creator:: Wilson, Erin R.
Abstract:: The Magnuson Stevens Act (MSA) 2007 added Limited Access Privilege Programs (LAPP) in order to provide assistance to fishing communities and community-based associations in order to receive quota allocation. Community fishing associations (CFAs) are a type of program that falls under the LAPP. The MSA emphasizes several eligibility criteria to...
Resource Type:: Capstone Project
Full Text:: seasonal access, setting total allowable catches (TACs), gear restrictions, and trip limits on landings

Mitigating Microplastics : Development and Evaluation of a Middle School Curriculum

Creator:: Kowalski, Marie
Abstract:: Microplastics, plastic marine debris less than 5 mm in size, is a threat to the health of our oceans. One important way to reduce microplastics in our oceans is to educate people about the issue, particularly future decision-makers. In this study, a middle school curriculum was developed using current scientific...
Resource Type:: Masters Thesis
Full Text:: field. Assessment criteria for curriculum structural components are compiled from the effective

Drivers of Euphausiid Abundance and Biomass in the Kitimat Fjord System, BC Canada

Creator:: Qualls, Katelyn M.
Abstract:: Euphausiids are recognized as essential components of marine food webs throughout the world’s oceans due to their role as prey for many species including whales, seabirds, and commercial fishes. The Kitimat Fjord System is an important fisheries area and is the only fjord habitat on the British Columbia coast that...
Resource Type:: Masters Thesis
Full Text:: trophic links removed from them at some point in their life history (Field et al., 2006). Due to this

Oregon climate assessment report : December 2010

Creator:: Dello, Kathie D., Mote, Philip W., and Oregon Climate Change Research Institute
Abstract:: The group of scientists that make up the Intergovernmental Panel on Climate Change found in 2007 that the warming of Earth’s climate is unequivocal and largely due to human activity. Earth’s climate has changed in the past, though the recent magnitude and pace of changes are unprecedented in human existence....
Resource Type:: Technical Report

Heat Flow along the Southern Costa Rica Margin : Insights on the Updip Limit of Seismicity

Creator:: Hass, Bridget M.
Abstract:: Heat flow analysis of the Costa Rica convergent margin is carried out for seven core sites drilled during Integrated Ocean Drilling Program (IODP) Expeditions 334 and 344 as part of the Costa Rica Seismogenesis Project (CRISP). These expeditions were designed to develop a better understanding of erosional subduction zones. Heat...
Resource Type:: Masters Thesis
Full Text:: trip through the drill pipe. At the bottom of the drill string, the SET tool latches into the Bottom

Evaluation of the Education and Outreach Action Plan of the Florida Keys National Marine Sanctuary

Creator:: Sarasas, Pinya
Abstract:: During the summer of 1996, I had the opportunity to do an internship with the Florida Keys National Marine Sanctuary (FKNMS) at Lower Key Office, Key West, Florida. Established in November 1990 under the Florida Keys National Marine Sanctuary and Protected Act, the FKNMS is a federal agency managed by...
Resource Type:: Capstone Project
Full Text:: that emphasizes that interconnectedness of the Keys ecosystem through traveling sequential field trip

Marine Low Clouds : Radiation, Turbulence, and Forecasting

Creator:: Verlinden, Kathryn L.
Abstract:: High-resolution ship-based observations of a nearly uniform stratocumulus deck in the southeast Pacific during 17 days of the 2008 VOCALS regional experiment elucidate radiation and turbulence in the marine boundary layer (MBL). A new method for prescribing observations-based cloud properties to the Rapid Radiative Transfer Model is presented and applied...
Resource Type:: Dissertation
Full Text:: ., Nicholls 1984; Moyer and Young 1993; Lothon et al. 2005), and also a few surface-based field campaigns

Change in Oregon’s Nearshore Groundfish Trawl Fishery: Perspectives from Science and Industry Data

Creator:: Howard, Rebecca A.
Abstract:: The commercial groundfish fishing industry and groundfish research have a long concurrent history of activity on the Oregon continental margin. Within the non-whiting groundfish fishery, the target species are primarily flatfishes, sablefish, lingcod, and rockfishes, though landings of each have fluctuated over time. Recent work shows that over the past...
Resource Type:: Masters Thesis
Full Text:: carry an observer on every trip. This has provided an additional source of fishery-dependent data with

Water Wits : The Development and Evaluation of a New Model for Integrated Marine Science, Safety, and Stewardship Education

Creator:: Roberts, Sara Shaw
Abstract:: There are many different organizations and agencies which share responsibility for educating the public about responsible use of aquatic and marine resources. However, organizations specifically focused on particular dimensions of water use, such as Oregon State Marine Board (OSMB), often face challenges when attempting to recruit teachers to implement educational...
Resource Type:: Masters Thesis
Full Text:: . As teachers are often the main consumers of these programs, whether through field trips or the

San Juan Island National Historical Park Natural Resource Condition Assessment

Creator:: Adamus, Paul R.
Abstract:: We compiled existing data and information to characterize the condition and trends in high priority natural resources in San Juan Island National Historical Park. We identified 37 indicators to evaluate the condition and trend of these resources. For each indicator we attempted to define reference conditions to which we could...
Resource Type:: Technical Report
Full Text:: .................................................. 86 Figure 22. Prairie polygons still dominated by native plants as delineated by field surveys at

An Exploratory Study on Family Group Use of a Multi-touch Table Exhibit at a Public Marine Science Center

Creator:: East, Jennifer L.
Abstract:: Museums, aquariums, and technology centers are informal learning environments that facilitate the understanding of scientific phenomena while supporting self-motivated learning. Families are a social group that frequently visits these sites. There are multiple opportunities for adults and children to engage in independent sense-making and collective discussion about their experiences with...
Resource Type:: Masters Thesis
Full Text:: this work contributes to the field of informal science education, and recommendations for

Beyond Cooperation : Environmental Justice in Transboundary Water Management

Creator:: Watson, Julie Elkins
Abstract:: Since the Wolf, Yoffe, and Giordano 2003 Basins at Risk study, examining human interactions with transboundary water resources through a lens of conflict and cooperation has been a dominant paradigm. The Basins at Risk (BAR) method involves categorizing events on a scale from most conflictive (e.g. war or extensive casualties)...
Resource Type:: Dissertation
Full Text:: in Oregon, he pulled a map from his desk and created a hand-drawn road trip itinerary for the last

Effects of Teaching Household Actions to Address Ocean Acidification on Student Knowledge and Attitudes

Creator:: Erickson, Brian D.
Abstract:: Ocean acidification (OA), the change in ocean chemistry due to increasing concentrations of anthropogenic carbon dioxide in the atmosphere, is an environmental problem that is an active area of scientific research yet remains largely outside of the public’s awareness. It is often assumed that if we raise OA awareness, then...
Resource Type:: Masters Thesis

Automated web-based analysis and visualization of spatiotemporal data

Creator:: Keon, Dylan B.
Abstract:: Most data are associated with a place, and many are also associated with a moment in time, a time interval, or another linked temporal component. Spatiotemporal data (i.e., data with elements of both space and time) can be used to assess movement or change over time in a particular location,...
Resource Type:: Dissertation
Full Text:: Investigation of Near field tsunamis UAF University of Alaska, Fairbanks UCGIS University Consortium for

The Oregon Nearshore Research Inventory Project : the importance of science and the scientific research community in marine spatial planning

Creator:: Sherman, Kate
Abstract:: The purpose of Oregon's Nearshore Research Inventory (NRI) project was to inventory and map the current and future use of Oregon's nearshore environment by the scientific research community for use in Oregon's marine spatial planning process. Spatial and qualitative data on the use of Oregon's ocean and coast by the...
Resource Type:: Masters Thesis
Full Text:: being big supporters of my work. Thank you Tabor Academy, Skidmore College, School for Field Studies

Adaptive Meets Precautionary: Navigating Risk and Rules in Collaborative Marine Renewable Energy Permitting Processes

Creator:: Burright, Jeffrey D.
Abstract:: Despite its promise as a potentially beneficial new source of energy, the ocean-based renewable energy industry is still in its infancy, and like any new idea there are many unknowns with the potential to affect both people and our natural environments. A permit for marine renewable energy (MRE) must cut...
Resource Type:: Masters Thesis

Examining the Effects of Artisanal, Small-scale Gold Mining on Livelihood Assets in Kedougou, Senegal

Creator:: Zoch, Grant L.
Abstract:: The frontlines of climate change adaptation will occur in rural, impoverished regions of the world where households engage in climatically dependent livelihoods, such as peasant agriculture or pastoralism. As changing climate and changing markets affect the suite of household livelihood assets (environmental, social, and economic) which enable a household to...
Resource Type:: Masters Thesis
Full Text:: on at least one field, receive food out of a common store and eat from a single pot” (as cited in

Incorporating the Impacts of Climate Variability on Growth in Fish Population Dynamics Models

Creator:: Moron Correa, Giancarlo Helar
Abstract:: Variations in ocean conditions influenced by climate fluctuations may impact fish populations by changing their spatial distribution, physiology, survival, and other ecological features. Somatic growth is a crucial aspect of the biology of fishes and an important contributor to biomass fluctuations. Climate variability also affects somatic growth rates along the...
Resource Type:: Dissertation
Full Text:: simulated spatial field of variability for somatic growth, 𝜔𝑘𝑠 .............................64 3.3

The Responses of Slope-spawning Flatfish to Environmental Variability in the Eastern Bering Sea

Creator:: Vestfals, Cathleen D.
Abstract:: When adult spawning and juvenile settling locations of marine fishes are geographically separated, their early life history stages must rely on transport and their own behavior to move them toward suitable habitats for successful recruitment to the juvenile phase. Variations in climate may reduce the availability of spawning and juvenile...
Resource Type:: Dissertation

Ocean Temperature Variability during the Late Pleistocene

Creator:: Hoffman, Jeremy Scott
Abstract:: This dissertation explores one overarching question relevant to the paleoclimate of the latest Pleistocene glacial cycle (approximately the last 130,000 years): “How did spatial and temporal evolution of ocean temperature, both at the surface and interior, relate to other parts of the climate system in the late Pleistocene?” Results from...
Resource Type:: Dissertation
Full Text:: weekend for this particular field work trip. After a few run-ins with one-armed hunting

Magmatic processes beneath mid-ocean ridges : insights from mineral and glass chemistry in plagioclase ultraphyric basalts

Creator:: Lange, Amy E.
Abstract:: Prior to eruption at mid-ocean ridges, melts must travel through >6 km of crust from their origin in the mantle. The final composition of the melts is dependent on both the melting conditions and magmatic processes within the crust. While mid-ocean ridge basalt (MORB) glasses are commonly used to infer...
Resource Type:: Dissertation

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