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Filtering by: Advisor Graham, David W. Remove constraint Advisor: Graham, David W. Contributor advisor sim Graham, David W. Remove constraint Contributor advisor sim: Graham, David W.

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New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

Creator:

Konrad, Kevin

Abstract:

Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...

Resource Type:

Dissertation
Basaltic volcanism and tectonics of the High Lava Plains, southeastern Oregon

Creator:

Jordan, Brennan T.

Abstract:

The High Lava Plains province (HLP) of southeastern Oregon is a Miocene to Recent volcanic upland characterized by widespread basaltic volcanism and west-migrating rhyolitic volcanism. New ⁴⁰Ar/³⁹Ar ages for HLP rhyolites demonstrate that the trend of migrating rhyolitic volcanism is robust, reflecting westward migration at a rate of -35 km/m.y....

Resource Type:

Dissertation
A trace element study of plagioclase and clinopyroxene phenocrysts in historical lavas from Mt. Etna, Sicily, by laser ablation ICP-MS

Creator:

Russo, Christopher J.

Abstract:

Understanding magmatic processes occurring at depth in magmatic systems is fundamental for a more complete understanding of the variations sampled in lavas erupted from these systems on the Earth's surface. This thesis presents the results of detailed trace element analyses of plagioclase and clinopyroxene phenocrysts measured by laser ablation-inductively coupled...

Resource Type:

Masters Thesis
Geochemical and petrogenetic effect of the interaction of the Southeast Indian Ridge and the Amsterdam-Saint Paul hotspot

Creator:

Priebe, Louise M. Douglas

Resource Type:

Masters Thesis
Geochemical and helium isotopic variability within the Lau Basin

Creator:

Goddard, Charlotte Ives

Abstract:

This research incorporates geochemical and helium isotopic analyses of Lau Basin volcanic glasses, along with helium isotopic analyses of water column hydrothermal plumes to better understand the processes that control the formation and evolution of this backarc basin. Lavas newly collected from the four southernmost segments of the Valu Fa...

Resource Type:

Dissertation

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Academic Affiliation

College of Oceanic and Atmospheric Sciences2
Geosciences2
College of Earth, Ocean, and Atmospheric Sciences1

Advisor

Graham, David W.[remove]5
Grunder, Anita L.1
Koppers, Anthony A. P.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1998 to 2017

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Committee Member

Kent, Adam J. R.2
Christie, David M.1
Duncan, Robert A.1
Grunder, Anita1
Lupton, John E.1
more Committee Members »

Creator

Goddard, Charlotte Ives1
Jordan, Brennan T.1
Konrad, Kevin1
Priebe, Louise M. Douglas1
Russo, Christopher J.1

Date

Date range begin – Date range end

Current results range from 1998 to 2017

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Decade

2010-20191
2000-20093
1990-19991

Degree Field

Geology3
Oceanography2

Degree Level

Doctoral3
Master's2

Degree Name

Doctor of Philosophy (Ph.D.)3
Master of Science (M.S.)2

File Format

application/pdf1

Language

English [eng]5

License

All rights reserved3

Non-Academic Affiliation

Oregon State University. Graduate School5

Peer Reviewed

No5

Resource Type

Dissertation3
Masters Thesis2

Rights Statement

In Copyright4
Copyright Not Evaluated1

Subject

Argon-argon dating1
Back-arc basins -- Lau Basin1
Basalt -- Oregon -- High Desert1
Earth (Planet) -- Mantle1
Etna, Mount (Italy)1
more Subjects »

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