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Filtering by: Contributor advisor sim Nielsen, Roger L. Remove constraint Contributor advisor sim: Nielsen, Roger L. License All rights reserved Remove constraint License: All rights reserved

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An Experimental and Analytical Investigation of the Parameters that Influence Measured CO₂ in Plagioclase-Hosted Melt Inclusions in MORBs

Creator:

Drignon, Melissa J.

Abstract:

To understand the processes that lead to the formation of the oceanic crust, one must know the composition and the depth at which primary melts originate. Towards this end, this dissertation focuses on plagioclase-hosted melt inclusions from plagioclase ultraphyric basalts (PUBs). Plagioclase is usually considered to be the second phase,...

Resource Type:

Video and Dissertation
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
Snow Peak, OR: late Miocene to early Pliocene volcanism in the central Cascadia forearc

Creator:

Hatfield, Ashley K.

Abstract:

Snow Peak is a voluminous shield volcano located ~50 km west of the axis of the modern Cascade arc. A previously published K-Ar age estimate indicates that the Snow Peak lavas are ~3 Ma. Subsequently, the preliminary research framework for studying the Snow Peak lavas focused on constraining the petrogenesis...

Resource Type:

Masters Thesis
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

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Academic Affiliation

College of Earth, Ocean, and Atmospheric Sciences2
Geosciences2

Advisor

Nielsen, Roger L.4
Kent, Adam J. R.1
Kent, Adam jr1
Tepley, Frank J.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2006 to 2019

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Committee Member

Graham, David W.2
Kent, Adam J. R.2
Coblentz, Bruce1
Graham, Dave1
Grunder, Anita1
more Committee Members »

Creator

Drignon, Melissa J.1
Hatfield, Ashley K.1
Lange, Amy E.1
Rowe, Michael C.1

Date

Date range begin – Date range end

Current results range from 2006 to 2018

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Decade

2010-20192
2000-20092

Degree Field

Geology4

Degree Level

Doctoral3
Master's1

Degree Name

Doctor of Philosophy (Ph.D.)3
Master of Science (M.S.)1

File Format

application/pdf1

Language

English [eng]4

License

All rights reserved[remove]4

Non-Academic Affiliation

Oregon State University. Graduate School3

Peer Reviewed

No4

Resource Type

Dissertation3
Masters Thesis1
Video1

Rights Statement

In Copyright4

Subject

Basalt1
Basalt -- Inclusions -- Cascade Range1
Basalt -- Inclusions -- Oregon1
Geochronometry -- Oregon -- Snow Peak (Linn County)1
Geology, Stratigraphic -- Miocene1
more Subjects »

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