Index Catalog // ScholarsArchive@OSU

Late Cenozoic Climate, Ice-sheet and Earth-surface Evolution Derived from Terrestrial and Marine Sedimentary Archives

Creator:: Bill, Nicholas S.
Abstract:: The goals of this dissertation are centered on understanding changes in Earth surface and climate systems through the use of geologic proxies as records of past changes in these systems. Specifically, this dissertation (1) establishes a new chronology for retreat of the Ross Sea sector of the West Antarctic Ice...
Resource Type:: Dissertation
Full Text:: OF THE DISSERTATION OF Nicholas S. Bill for the degree of Doctor of Philosophy in Geology

Dynamics of the Laurentide Ice Sheet

Creator:: Carlson, Anders Eskil
Abstract:: This dissertation concentrates on the controlling factors on the instability of the Laurentide Ice Sheet (LIS) and their effects on abrupt climate change. Northern Hemisphere climate fluctuated abruptly during the last deglaciation possibly related to variability in Atlantic meridional overturning circulation (AMOC) and reduced aerial extent of the LIS. Reductions...
Resource Type:: Dissertation
Full Text:: routed to the St. Lawrence at the start of the Younger Dryas with an increase in base flow discharge

Live-tree carbon in the Pacific Northwest : estimates and uncertainties

Creator:: Melson, Susanna L.
Abstract:: Concentration of carbon dioxide (CO₂) in the atmosphere has increased over the past 150 years. Because CO₂ is one of a number of radiatively active gases, there is concern that global temperatures will rise and climatic conditions will change. Recent research indicates northern hemisphere forests may currently be accumulating carbon...
Resource Type:: Masters Thesis

Spatial and Temporal Landscape Responses to Progressive Tectonic Forcing along California Fault Systems

Creator:: Manopkawee, Pichawut
Abstract:: Understanding the degree to which topography of erosional landscapes in active mountain belts encode the rates and patterns of active deformation in the upper crust is a primary goal in the field of tectonic geomorphology. In particular, the convolved influence of variations in rock mass quality and the erodibility of...
Resource Type:: Dissertation
Full Text:: my committees: Prof. Andrew Meigs, Prof. Stephen Lancaster, and Prof. Gordon Grant. I am extremely

Olivine and plagioclase-hosted melt inclusions and their application to determining parental arc magmas

Creator:: Kohut, Edward John
Abstract:: Three broadly interrelated problems of critical significance to the proper interpretation of melt inclusion (MI) data are addressed in this thesis. The first issue, the petrogenesis of anorthitic plagioclase phenocrysts in MORB lavas, has relevance due to the presence of numerous MI in many high-An feldspars. This problem was addressed...
Resource Type:: Dissertation
Full Text:: ° and 12 10°. Melt compositions were similar to natural MORB glasses with Mg#s of 63 to>85. The results

Seismotectonics of the Himalayas and the Tibetan Plateau : moment tensoranalysis of regional seismograms

Creator:: Baur, Jan R.
Abstract:: This thesis presents a detailed seismotectonic investigation of the Himalayan region and the Tibetan plateau as part of project HiCLIMB to explore the state of stress and the kinematics of the world’s largest continental collision zone. Using full regional waveforms for moment tensor inversion, source parameters for 107 earthquakes were...
Resource Type:: Masters Thesis
Full Text:: Andrew Meigs and Jochen Braunmiller for reading my thesis and serving on my committee. Jochen

Low-frequency Teleseismic and Infrasound Arrivals along the Dense Corvallis Nodal Array

Creator:: Way, Rachel
Abstract:: The dense Corvallis array deployed in January of 2022 aided in the high-resolution study of local geology. This array was made of 177 SmartSolo 3-component 5 Hz geophones around Corvallis, with a 93 geophone profile going west towards Bald Hill for approximately 5 km at an average of 64 m...
Resource Type:: Honors College Thesis
Full Text:: _____________________________________________________________________ Andrew Meigs, Committee Member, representing Earth, Ocean and Atmospheric Science

Lidar-based Post-earthquake Pavement Damage Classification System

Creator:: Shakya, Suzanna
Abstract:: 3D laser scanning has been used extensively in engineering reconnaissance surveys to capture perishable data in an efficient, reliable, and precise manner. Many insights on damage can be obtained from the data through various methods of post-processing; however, many of these techniques are often labor intensive. This delay reduces the...
Resource Type:: Masters Thesis
Full Text:: and Dr. Andrew Meigs for always providing me with valuable advice, support and taking the time to

Extension and volcanism : tectonic development of the northwestern margin of the Basin and Range Province in southern Oregon

Creator:: Scarberry, Kaleb C.
Abstract:: The northwestern corner of the Basin and Range Province (NWBR) lies in southeast Oregon where extensive Late Miocene, mafic to bimodal basalt-rhyolite volcanism and extensional faults dominate a stark and arid landscape. Near Lake Abert, the Late Miocene volcanic section abuts Early Miocene, dominantly intermediate composition volcanoes at the Coleman...
Resource Type:: Dissertation
Full Text:: and expanded as it has. Significant help from Anita and Andrew Meigs with the development of

Degree and scale of interactions among chiefdoms during the pre-Hispanic late period in northern Highland Ecuador (AD 1250-1525)

Creator:: Yanchar, Kaitlin C.
Abstract:: During the Late Pre-Hispanic period, settlements in Northern Highland Ecuador were organized under a number of chiefdoms. While a basic hierarchical political system is described in the ethnohistoric literature, the nature of the interactions between specific settlements has remained unknown. This study utilizes two methods for describing the degree and...
Resource Type:: Masters Thesis
Full Text:: . Andrew Meigs for providing guidance on my project and encouraging me through the thesis process. I

ScholarsArchive@OSU

Late Cenozoic Climate, Ice-sheet and Earth-surface Evolution Derived from Terrestrial and Marine Sedimentary Archives

Dynamics of the Laurentide Ice Sheet

Live-tree carbon in the Pacific Northwest : estimates and uncertainties

Spatial and Temporal Landscape Responses to Progressive Tectonic Forcing along California Fault Systems

Olivine and plagioclase-hosted melt inclusions and their application to determining parental arc magmas

Seismotectonics of the Himalayas and the Tibetan Plateau : moment tensoranalysis of regional seismograms

Low-frequency Teleseismic and Infrasound Arrivals along the Dense Corvallis Nodal Array

Lidar-based Post-earthquake Pavement Damage Classification System

Extension and volcanism : tectonic development of the northwestern margin of the Basin and Range Province in southern Oregon

Degree and scale of interactions among chiefdoms during the pre-Hispanic late period in northern Highland Ecuador (AD 1250-1525)

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