Author ORCID Identifier

https://orcid.org/0009-0009-9163-3084

Date Available

8-7-2023

Year of Publication

2023

Degree Name

Master of Science (MS)

Document Type

Master's Thesis

College

Arts and Sciences

Department/School/Program

Geology

First Advisor

Dr. Frank Ettensohn

Abstract

The upper Lexington Limestone of Late Ordovician age has been interpreted to represent a structurally controlled, complex, facies mosaic. This facies mosaic has historically been interpreted to be a carbonate buildup of shoal complexes with interbedded shale units with intertonguing facies. Due to relatively recent advances in geographic-information-systems (GIS) mapping technologies, it is possible to generate three-dimensional (3-D) compatible maps to offer insight to the complexities of the upper Lexington Limestone and to determine if structural control affected the distribution of members. The resulting two-dimensional (2-D) and 3-D maps show that basement faults likely exerted a significant influence on facies distribution and formation. The 3-D maps further suggest that post-depositional structural activity during the Alleghanian orogeny resulted in large-scale deformation of the Lexington Limestone to generate structures like the Jessamine Dome.

Digital Object Identifier (DOI)

https://doi.org/10.13023/etd.2023.389

Funding Information

This study was supported by the United States Geological Survey's EDMAP Grant (no.: G22AC00173-00) in 2022-2023.

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