Skip to Main Content
Frequently Asked Questions
Submit an ETD
Global Search Box
Need Help?
Keyword Search
Participating Institutions
Advanced Search
School Logo
Files
File List
Foley Derek J Thesis 2016.pdf (11.19 MB)
ETD Abstract Container
Abstract Header
Analysis of the Point Pleasant/Lexington/Trenton Formations: Sulfides, Mineralogy, and Trace Elements as Geochemical Proxies
Author Info
Foley, Derek J
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=osu1461333436
Abstract Details
Year and Degree
2016, Master of Science, Ohio State University, Earth Sciences.
Abstract
Petrophysical, mineralogical, and geochemical aspects determine the productivity of a gas producing shale. The Point Pleasant, Lexington, and Trenton Formations in Southeastern Ohio have not been studied extensively in this area. This study attempts to define the mineralogical, petrophysical, and geochemical characters of the Point Pleasant/Lexington/Trenton formations in Eastern Ohio. In addition, how redox states vary with the character of the formations. Particular study of sulfide morphology and sulfur isotopes, principally in pyrite, and how they correlate with 34S/32S partitioning is explored along with its relation to redox state. Lastly, sulfur isotope partitioning and organic preservation are compared to evidence of biogenic production and alteration. Carbonate is found to determine rock fabric. Clays and organic content are found to contain the bulk of connected porosity, as the majority of porosity is contained in <100 nm diameter pores. Pyrite morphology and location affects 34S/32S partitioning and sulfate reducing bacteria are suspected to play a mediating role in the partitioning. This study concludes the Point Pleasant, Lexington, and Trenton Formations formed in variable redox conditions, with oxygenated bottom waters followed by abrupt reducing, anoxic conditions.
Committee
David Cole (Advisor)
Thomas Darrah (Committee Member)
Michael Barton (Committee Member)
Pages
99 p.
Subject Headings
Geology
Keywords
redox
;
shale
;
mineralogy
;
petroleum geology
;
sulfur isotopes
;
porosity
;
shale gas
;
geochemistry
Recommended Citations
Refworks
EndNote
RIS
Mendeley
Citations
Foley, D. J. (2016).
Analysis of the Point Pleasant/Lexington/Trenton Formations: Sulfides, Mineralogy, and Trace Elements as Geochemical Proxies
[Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461333436
APA Style (7th edition)
Foley, Derek.
Analysis of the Point Pleasant/Lexington/Trenton Formations: Sulfides, Mineralogy, and Trace Elements as Geochemical Proxies.
2016. Ohio State University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=osu1461333436.
MLA Style (8th edition)
Foley, Derek. "Analysis of the Point Pleasant/Lexington/Trenton Formations: Sulfides, Mineralogy, and Trace Elements as Geochemical Proxies." Master's thesis, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461333436
Chicago Manual of Style (17th edition)
Abstract Footer
Document number:
osu1461333436
Download Count:
332
Copyright Info
© 2016, some rights reserved.
Analysis of the Point Pleasant/Lexington/Trenton Formations: Sulfides, Mineralogy, and Trace Elements as Geochemical Proxies by Derek J Foley is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by The Ohio State University and OhioLINK.