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Filtering by: Creator Poulter, Benjamin Remove constraint Creator: Poulter, Benjamin License All rights reserved Remove constraint License: All rights reserved

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Magnetotelluric Constraints on Lithospheric Properties in the Southeastern United States

Creator:

Murphy, Benjamin S.

Abstract:

By inverting EarthScope long-period magnetotelluric (MT) data from the southeastern United States (SEUS), we obtain electrical conductivity images that provides key insights into the geodynamics of this region. Significantly, we resolve a highly electrically resistive block that extends to mantle depths beneath the modern Piedmont and Coastal Plain physiographic provinces....

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Dissertation

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AN ABSTRACT OF THE DISSERTATION OF Benjamin S. Murphy
Gas-phase fragmentation chemistry of protonated peptide ions

Creator:

Bythell, Benjamin James

Abstract:

The fragmentation characteristics of protonated peptides have been investigated using tandem mass spectrometry (MS/MS) under various fragmentation regimes and detailed density functional theory (DFT) reaction pathway calculations. The DFT calculations predict novel salt-bridge stabilized transition structures as well as consecutive reactions occurring in proton-bound dimers for some of the ions...

Resource Type:

Dissertation

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2 AN ABSTRACT OF THE DISSERTATION OF Benjamin James Bythell for the degree of Doctor of
Understanding Signals of the South Pole Ice Core: Chronology, Climate, and Firn Processes

Creator:

Epifanio, Jenna A.

Abstract:

The South Pole ice core (SPC14), drilled in the field seasons of 2014/2015 and 2015/2016, is an intermediate length, 1,751-m ice core which preserves a 54,000-year record of past climate and atmospheric composition. The SPC14 ice core adds to the spatial grid of ice cores in Antarctica extending into the...

Resource Type:

Dissertation
Establishment and dynamics of methane-oxidizing microbial communities in marine sediments

Creator:

Klasek, Scott A.

Abstract:

Marine sediments are vast sources and reservoirs of methane, a potent greenhouse gas. Most of this methane is anaerobically oxidized by archaea before it can reach the overlying ocean, though the efficiency of this process often depends on methane fluxes and mechanisms of fluid transport. Anaerobic methanotrophic archaea, or ANME,...

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Dissertation

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Academic Affiliation

College of Earth, Ocean, and Atmospheric Sciences2
Chemistry1
Microbiology1

Advisor

Barofsky, Douglas F.1
Brook, Edward J.1
Colwell, Frederick S.1
Egbert, Gary D.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2008 to 2022

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Committee Member

Bottomley, Peter J.1
Buizert, Christo1
Creveling, Jessica1
Deinzer, Max1
Hetherington, William1
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Creator

Bythell, Benjamin James1
Epifanio, Jenna A.1
Klasek, Scott A.1
Murphy, Benjamin S.1

Date

Date range begin – Date range end

Current results range from 2007 to 2022

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Decade

2020-20291
2010-20192
2000-20091

Degree Field

Chemistry1
Geology1
Microbiology1
Ocean, Earth, and Atmospheric Science1

Degree Level

Doctoral4

Degree Name

Doctor of Philosophy (Ph.D.)4

File Format

application/pdf1

Language

English [eng]4

License

All rights reserved[remove]4

Non-Academic Affiliation

Oregon State University. Graduate School1

Peer Reviewed

No4

Resource Type

Dissertation4

Rights Statement

In Copyright4

Subject

Fragmentation reactions1
Ice cores1
Marine sediments--Microbiology1
Methanotrophs1
Microbial mats1
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