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Filtering by: Subject Volcanism -- Washington (State) -- Saint Helens, Mount Remove constraint Subject: Volcanism -- Washington (State) -- Saint Helens, Mount Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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The role of subduction fluids in generating compositionally diverse basalts in the Cascadia subduction zone

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...

Resource Type:

Dissertation
Spatial and temporal changes in stream network topology : post-eruption drainage, Mount St. Helens

Creator:

Parsons, Michael Raymond

Resource Type:

Dissertation
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
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
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:

volcanic tephra from Mount St. Helens, Washington AN ABSTRACT OF THE THESIS OF Joseph A. Antos for the

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Academic Affiliation

Geosciences2
Botany and Plant Pathology1
Forest Resources1
Geography1

Advisor

Kent, Adam J. R.1
Nielsen, Roger L.1
Nolan, Mary Lee1
Ripple, William J.1
Zobel, Donald B.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1984 to 2006

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Committee Member

Agnew, Allen F.1
Coblentz, Bruce1
Dawson, Peter S.1
Franklin, Jerry F.1
Frenkel, Robert E.1
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Creator

Antos, Joseph A.1
Baker, Randal G.1
Lawrence, Rick L.1
Parsons, Michael Raymond1
Rowe, Michael C.1

Date

Date range begin – Date range end

Current results range from 1984 to 2006

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Decade

2000-20091
1990-19992
1980-19892

Degree Field

Geography2
Botany and Plant Pathology1
Forest Resources1
Geology1

Degree Level

Doctoral5

Degree Name

Doctor of Philosophy (Ph.D.)[remove]5

File Format

application/pdf1

Language

English [eng]5

License

All rights reserved1

Non-Academic Affiliation

Oregon State University. Graduate School5

Peer Reviewed

No4

Resource Type

Dissertation5

Rights Statement

In Copyright3
Copyright Not Evaluated2

Subject

Saint Helens, Mount (Wash.)2
Basalt -- Inclusions -- Cascade Range1
Basalt -- Inclusions -- Oregon1
Erosion -- Washington (State) -- Saint Helens, Mount, Region1
Plant ecology -- Washington (State)1
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