Index Catalog // ScholarsArchive@OSU

Mount St. Helens, the aftermath

Creator:: Flaherty, David C., United States. Office of Water Research and Technology, and State of Washington Water Research Center
Resource Type:: Technical Report
Full Text:: offices in the Department of the Interior. The Mount St. Helens Research and Development Program was among

Sediment routing in a small watershed in the blast zone at Mount St. Helens, Washington

Creator:: Smith, Richard D. (Richard Dean), 1950-
Abstract:: A descriptive model of the routing of sediment that was delivered to the study area by the 1980 eruptions of Mount St. Helens has been developed. On hillslopes this sediment was distributed among three major storage compartments: 1) the tephra profile, 2) primary storage, and 3) secondary storage. The most...
Resource Type:: Masters Thesis
Full Text:: eruption of Mount St. Helens caused the loss of many lives and damage to much property and natural

The Ore bin ; Vol. 37 No. 3 (March 1975)

Creator:: Oregon. Dept. of Geology and Mineral Industries, Crandell, Dwight Raymond, 1923-, Mullineaux, Donal Ray, 1925-, and Rubin, Meyer
Resource Type:: Journal
Full Text:: The ORE BIN Volume 37,No. 3 March 1975 MOUNT ST. HELENS VOLCANO: RECENT AND FUTURE BEHAVIOR Dwight

Responses of forest understory plants to burial by volcanic tephra from Mount St. Helens, Washington

Creator:: Antos, Joseph A.
Abstract:: The effects of burial by tephra (volcanic aerial ejecta) on forest understory plants were examined northeast of Mount St. Helens, Washington, in the area where the 18 May 1980 eruption deposited tephra but did not destroy canopy trees. At six sites along a tephra depth gradient from 2-15 cm, understory...
Resource Type:: Dissertation
Full Text:: . Characteristics of long-rhizomatous species at the H.J. Andrews EER, Oregon, and Mount St. Helens site

Meeting of the magmas : the evolutionary history of the Kalama Eruptive Period, Mount St. Helens, Washington

Creator:: Lieuallen, Athena Erin
Abstract:: Comprehension of eruptive histories is critical in understanding the evolution of magmatic systems at arc volcanoes and may supply evidence to the petrogenesis of intermediate and evolved magmas. Within the 300 ka eruptive history of Mount St. Helens, Washington, the Kalama Eruptive Period, 1479- ~1750 CE was bracketed by interludes...
Resource Type:: Masters Thesis
Full Text:: QMIs, and the calc-alkaline parent to the MKLV and SDO. The magma reservoir at Mount St. Helens

Evolution of a drainage network : remote sensing analysis of the North Fork Toutle River, Mount St. Helens, Washington

Creator:: Rosenfeld, Charles L., Beach, Gary L., and Oregon State University. Water Resources Research Institute
Resource Type:: Technical Report
Full Text:: , MOUNT ST . HELENS, WASHINGTON by Charles L . Rosenfeld and Gary L . Beach Department of Geography

Avian Community Assembly Following Volcanic Disturbance at Volcán Arenal, Costa Rica and Mount St. Helens, USA

Creator:: Fairchild, Karl C.
Abstract:: Volcanism is an agent of major disturbance in many parts of the world. While the effects of volcanic disturbance are fairly well-known among some groups of species, few studies have been performed in bird communities. Likewise, few studies have attempted to compare how communities in temperate and tropical biomes respond...
Resource Type:: Honors College Thesis
Full Text:: Rica, and Mount St. Helens, USA. Abstract approved: ___________________________________________

Life-history strategies of rainbow trout (Oncorhynchus mykiss) across a volcanic disturbance gradient at Mount St. Helens, Washington

Creator:: Blackman, Tara Elizabeth
Abstract:: In this study, I examine the influence of habitat gradients created by the 1980 eruption of Mount St. Helens, Washington USA on a recently established Rainbow Trout (Oncorhynchus mykiss) population in the Spirit Lake basin. My goal was to evaluate the responses of fish in seven streams across a volcanic...
Resource Type:: Masters Thesis
Full Text:: years of Mount St. Helens adventures. To Matt Sloat for seeing the possibilities in my project and

Recent periglacial debris flows from Mount Rainier, Washington

Creator:: Copeland, Elizabeth A.
Abstract:: Debris flow initiation is controlled by a complex interaction of geology, geomorphology, climate, and weather. In the Cascade Range of Pacific Northwest and mountainous areas globally, patterns of temperature and precipitation are being altered by climate change, which may in turn impact debris flow initiation. Temperature has increased and patterns...
Resource Type:: Masters Thesis
Full Text:: examination of recent debris flows and their behavior could reveal clues useful for evaluating future risk

Shoaling of port of Astoria, Oregon, by sediment from Mt. St. Helens eruption

Creator:: Slotta, Larry S., 1934-, Cobos, Carlos R., Mustain, Roger S., Oregon State University. Department of Civil Engineering, Oregon State University. Water Resources Research Institute, and United States. Office of Water Research
Resource Type:: Technical Report
Full Text:: the U .S. Department of the Interior, Washington, D .C., under the Mt . St . Helens Research and

Flowering Patterns of Understory Herbs 30 Years after Disturbance of Subalpine Old-Growth Forests by Tephra from Mount St. Helens

Creator:: Zobel, Donald B. and Antos, Joseph A.
Abstract:: Premise of research. We sought to determine the role of flowering in recovery of understory herbs from a major disturbance and to determine the effects of plant and environmental factors on flowering patterns. Methodology. We counted flowering and nonflowering shoots in permanent plots eight to 10 times over a 30-year period for...
Resource Type:: Article
Full Text:: BY TEPHRA FROM MOUNT ST. HELENS Donald B. Zobel1,* and Joseph A. Antos† *Botany and Plant Pathology

compiled_pdf_201_267.pdf

Creator:: Rowe, Michael C.
Abstract:: The primary goal of this study is to assess the impact of a subduction component added to the mantle wedge beneath the Oregon Cascades to the composition and fO2 of primitive Cascade basalts. Olivine-hosted melt inclusions from compositionally diverse basalts across the Cascade arc (~100 km) are utilized in an...
Full Text:: CHAPTER 5 GEOCHEMISTRY OF 2004-2005 MOUNT ST. HELENS ASH: IDENTIFICATION AND EVOLUTION OF THE JUVENILE

CompiledThesis_small.pdf

Creator:: Rowe, Michael C.
Abstract:: The primary goal of this study is to assess the impact of a subduction component added to the mantle wedge beneath the Oregon Cascades to the composition and fO2 of primitive Cascade basalts. Olivine-hosted melt inclusions from compositionally diverse basalts across the Cascade arc (~100 km) are utilized in an...
Full Text:: this study was to analyze phenocrysts and glass in ash from the 2004 eruption of Mount St. Helens for

Stratigraphy, sedimentology, and eruptive dynamics of the 2-ka eruption of Misti Volcano, southern Peru

Creator:: Harpel, Christopher J.
Abstract:: The 2-ka eruption of Misti volcano produced voluminous flowage deposits and a wide-spread tephra-fall deposit. The flowage deposits form large terraces within channels draining the south side of the volcano. All the channels drain into the city of Arequipa. Arequipa's city center is ~16 km from the summit of the...
Resource Type:: Dissertation
Full Text:: most recent volcano hazards map includes hazards zones for pyroclastic flows, tephra fall, and lahars

Volcanology and petrology of Volcán Miño, Andean Central Volcanic Zone

Creator:: McKee, Claire M.
Abstract:: Volcán Miño (21°11'S) is located on the westernmost periphery of a longlived complex of stratovolcarioes and domes called the Aucanquilcha Complex. The Aucanquilcha Complex ranges in age from 11 Ma to 1-lolocene and lies along the main N-S trending axis of Quaternary volcanoes in the Andean Central Volcanic Zone (CVZ)....
Resource Type:: Masters Thesis
Full Text:: . Recent geophysical models emphasize the relationship between Andean topography and thick crustal roots

The Ore bin ; Vol. 31 No. 4 (April 1969)

Creator:: Oregon. Dept. of Geology and Mineral Industries, Peterson, Norman V., and Groh, Edward A.
Resource Type:: Journal
Full Text:: ERUPTIONS • IN THE NEWBERRY VOLCANO AREA, OREGON By N. V. Peterson* and E. A. Groh** Several episodes of

Magma chamber processes over the past 475,000 years at Mount Hood, Oregon : insights from crystal zoning and crystal size distribution studies

Creator:: Darr, Cristina M.
Abstract:: Several different petrological techniques have been applied to lava flows between 200 to 475,000 years old from Mount Hood, Oregon. Mount Hood is unusual, in comparison to nearby Mount St. Helens and Mount Jefferson, in that it has produced relatively homogeneous lava compositions over 475,000 years. Erupted lavas are mostly...
Resource Type:: Masters Thesis
Full Text:: and Mount St. Helens ……………………………………………………… 9 4. Location of samples collected from Mount Hood

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:: directly east of Mount St. Helens (MSH) and may have a shared magma source with MSH (Hill et al., 2009

The Kilauea Volcano adult health study, Hawai'i, USA

Creator:: Longo, Bernadette Mae
Abstract:: After 22 years of eruption at Kilauea Volcano, Hawai'i, an environmental, epidemiological, and ethnographic study was conducted to assess for adverse health effects from chronic exposure to volcanogernc air pollution. Environmental data from 2003 indicated that Kau District, from 37 to 74 km downwind from the eruption, was being exposed...
Resource Type:: Dissertation
Full Text:: Volcano, Hawai'i, an environmental, epidemiological, and ethnographic study was conducted to assess for

Effects of volcanic and hydrologic processes on forest vegetation: Chaitén Volcano, Chile

Creator:: Swanson, Frederick J., Jones, Julia A., Crisafulli, Charles M., and Lara, Antonio
Abstract:: The 2008-2009 eruption of Chaitén Volcano (Chile) involved a variety of volcanic and associated hydrologic processes that damaged nearby forests. These processes included coarse (gravel) and fine (silt to sand) tephra fall, a laterally directed blast, fluvial deposition of remobilized tephra, a variety of low-temperature mass-movement processes, and a pyroclastic...
Resource Type:: Article
Full Text:: from the 1980 eruption of Mount St. Helens (USA), interactions between biota and geophysical processes

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