Geology Commons^™

Assessing Spatial Distribution Of Plausible Earthquake-Triggered Landslides Relative To Ca. 1000 Ybp Earthquake On The Gales Creek Fault, Jacqueline Rheingans

University Honors Theses

Modern coseismic landslides cluster near the surface trace of the fault that ruptured, suggesting that clustering of paleolandslides may record information about paleoearthquakes. This study documents the pattern of prehistoric landslides near the Gales Creek Fault (GCF), northwest Oregon, to assess whether it reflects an independently known paleoearthquake. The GCF is located northwest of Portland through the Cascadia fore-arc basin where landslides are often triggered by intense rainfall during the wet season or potentially by seismic shaking on the megathrust or on crustal faults. In order to understand how a seismic event on the GCF will impact landslide distribution I …

The Case For Ice Rises At Ross Bank Since The Middle Miocene, William Weber

LSU Master's Theses

Many tens of ice rises exist at the marine margins of the Antarctic Ice Sheet. Isle-type ice rises in particular are those where an ice shelf is pinned to an underlying submarine bank. Recent and ongoing studies show that Ross Bank, on the middle continental shelf of central Ross Sea, was the former site of an important Ross Ice Shelf ice rise during the advance and retreat of the West Antarctic Ice Sheet (WAIS) in the last glacial cycle. Ross Bank is a broad and anomalously shallow water platform whose crest rises to 170 m water depth. Despite their importance …

Tectonics: Supporting Information For Deformation Rates And Patterns Of The Emerging Banda Ranges Revealed By Uplifted Coral Terraces In Timor-Leste, Ron Harris, Nicole Cox, Megan Flexhaug, Dorothy Merritts, Chua-Chou Shen, Frederico Santos

ScholarsArchive Data

The supplementary information provided consist primarily of figures detailing coral terrace profiles and terrace inner margin elevation to MIS highstand correlations.

• a general overview of the kind of data files;
• a general description of processing steps used;
• any known imperfections or anomalies in the data.

Investigating The Distribution And Origin Of Pitted Mounds On Mars Using Machine Learning-Based Mapping And Integrated Geological Analysis: Application To Isidis Planitia, Precious Batubo

Doctoral Dissertations

Pitted mounds are widespread landforms across the northern plains of Mars, yet their origin remains uncertain. These features have been interpreted as possible expressions of subsurface fluid activity, including sedimentary volcanism, magmatic processes, or other fluid-assisted mechanisms. Determining their distribution, morphology, and geology is therefore important for understanding the evolution of subsurface hydrological processes and the planet’s potential for habitability. However, the large spatial extent of mound-bearing terrains makes comprehensive manual mapping impractical. This dissertation presents an automated approach to mound detection using Faster Region-Based Convolutional Neural Network (Faster R-CNN) from high-resolution Context Camera (CTX) images including morphometric and mineralogical …

Mgrre_Thinsections_Mgrre-147_7, Mgrre

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Mgrre_Thinsections_Mgrre-147_2, Mgrre

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Mgrre_Thinsections_Mgrre-147_8, Mgrre

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Mgrre_Thinsections_Mgrre-147_3, Mgrre

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Mgrre_Thinsections_Mgrre-147_1, Mgrre

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Mgrre_Thinsections_Mgrre-147_9, Mgrre

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Mgrre_Thinsections_Mgrre-147_10, Mgrre

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Mgrre_Thinsections_Mgrre-147_24, Mgrre

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Mgrre_Thinsections_Mgrre-147_23, Mgrre

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Mgrre_Thinsections_Mgrre-147_25, Mgrre

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Mgrre_Thinsections_Mgrre-101_6, Mgrre

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Mgrre_Thinsections_Mgrre-101_20, Mgrre

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Mgrre_Thinsections_Mgrre-101_22, Mgrre

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Mgrre_Thinsections_Mgrre-101_24, Mgrre

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Mgrre_Thinsections_Mgrre-101_20, Mgrre

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Mgrre_Thinsections_Mgrre-102_1, Mgrre

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