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Fluvial architectural analysis and longitudinal variance of the Castlegate Sandstone, Book Cliffs, Utah

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Date
2025-04-24
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Abstract
The Castlegate Sandstone is one of the most-studied fluvial deposits in the world due to its world-class exposure. Despite this, there has yet to be a comprehensive fluvial architecture analysis study considering the longitudinal variance within the system. This study uses methods of lithofacies analysis, analysis of fluvial architectural elements, and calculation of backwater length to reconstruct the depositional history of the Castlegate Sandstone. This study recognizes valley-scale scours in the Castlegate, a frequently overlooked surface within the hierarchy of fluvial bounding surfaces. Data collected was compared and supplemented with the numerous previous studies on this rock unit. This study determines the lack of trackable surfaces from the proximal to distal reaches of the Castlegate system due to the different controls on fluvial architecture in different regions of the system, and provides insight into driving factors of change in fluvial architecture and channel style along longitudinal profile.
Contents
Subject
Geology
 Sequence stratigraphy
 Castlegate Sandstone
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Master's Thesis
Adobe PDF, 7.02 MB
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Salina Canyon orthomosaic (A), bounding surfaces (B), and architectural elements (C)
PNG, 93.28 MB
Joe's Valley Reservoir orthomosaic (A), bounding surfaces (B), and architectural elements (C)
PNG, 58.93 MB
Castlegate type-section orthomosaic (A), bounding surfaces (B), and architectural elements (C)
PNG, 13.96 MB
Sunnyside Canyon orthomosaic (A), bounding surfaces (B), and architectural elements (C)
PNG, 105.43 MB
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Department
Geology
Advisor
Holbrook, John
URI
https://repository.tcu.edu/handle/116099117/67068
DOI