Index Catalog // ScholarsArchive@OSU

Crustal inheritance and a top-down control on arc magmatism at Mount St. Helens

Creator:: Bedrosian, Paul A., Peacock, Jared R., Bowles-Martinez, Esteban, Schultz, Adam, and Hill, Graham
Abstract:: In a subduction zone, the volcanic arc marks the location where magma, generated via flux melting in the mantle wedge, migrates through the crust and erupts. While the location of deep magma broadly defines the arc position, here we argue that crustal structures, identified in geophysical data from the Washington...
Resource Type:: Article
Full Text:: Mount St. Helens lava dome-254 implications for magmatic plumbing and eruption triggering. In: Sherrod

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:: Period of Mount St. Helens began March 27, 1980 with a phreatic, ash eruption, followed by many others

A landscape-scale analysis of vegetation recovery at Mount St. Helens

Creator:: Lawrence, Rick L.
Abstract:: I used satellite remote sensing to examine the key factors controlling the natural revegetation of Mount St. Helens since its eruption in 1980. The study required three stages: determining the amount of vegetation present; characterizing vegetation change; and analyzing the influence of factors affecting vegetation change. To determine the amount...
Resource Type:: Dissertation

Volcanism, Climate Change. and Prehistoric Cultural Succession in Southern Washington and North-Central Idaho

Creator:: Davis, Loren G. (Loren Gerald), 1969-
Abstract:: The cultural influence of volcanic eruptions has been emphasized in the archaeological literature. However, the larger effects that Mount St. Helens volcanic eruptions had upon prehistoric populations in the Pacific Northwest is not understood. This thesis asks questions of the archaeological and paleoenvironmental record of the Pacific Northwest to assess...
Resource Type:: Masters Thesis

Tourism and community perceptions : an examination of Mount St. Helens' tourism as perceived by local residents

Creator:: Baker, Randal G.
Abstract:: Since the eruption of Mount St. Helens on May 18,1980, the rural communities within its shadow have experienced tremendous change. Tourism has become a highly visible and somewhat controversial component of change in the region, and its importance to local economies has increased. As a result of increased tourism development...
Resource Type:: Dissertation

Riparian vegetation recovery in the blast and airfall tephra zones of Mount St. Helens, Washington

Creator:: Kiilsgaard, Christen W.
Abstract:: Riparian vegetation patterns within the blast, downstream of blast, and airfall tephra zones of Mount St. Helens are related to initial and secondary volcanic disturbance, post-eruption fluvial landforms, channel geometry, and streamflow characteristics. Vegetation patterns were determined from species presence observed on transects across landforms developed along the streams. Distinct...
Resource Type:: Masters Thesis

Geomorphological analysis of North Fork Toutle River, Washington, 1980-1984

Creator:: Pearson, Monte L.
Abstract:: The 18 May 1980 eruption of Mount St. Helens, emplaced between 3-3.5 billion cubic yards (bcy) of poorly sorted material ranging from silt to boulders, extending from river mile (RM) 25 to RM 38 in the upper North Fork Toutle River drainage. Sediment yields from the debris avalanche were calculated...
Resource Type:: Dissertation

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:: 1976). About 6600 years ago a massive eruption of Mount Mazama (much larger than the 1980 event

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:: Lower Columbia Rive r immediately following the May 18, 1980 eruption of Mt . St. Helens . Research

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:: November 1983 ABSTRACT The May 18, 1980 eruption of Mt . St . Helens and subsequent vol- canic events

ScholarsArchive@OSU

Crustal inheritance and a top-down control on arc magmatism at Mount St. Helens

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

A landscape-scale analysis of vegetation recovery at Mount St. Helens

Volcanism, Climate Change. and Prehistoric Cultural Succession in Southern Washington and North-Central Idaho

Tourism and community perceptions : an examination of Mount St. Helens' tourism as perceived by local residents

Riparian vegetation recovery in the blast and airfall tephra zones of Mount St. Helens, Washington

Geomorphological analysis of North Fork Toutle River, Washington, 1980-1984

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

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

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

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