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Permanent link (DOI): https://doi.org/10.7939/R3QD5D

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Petrographic and X-ray Microtomographic Analysis of the Upper Montney Formation, Northeastern British Columbia, Canada Open Access

Descriptions

Other title
Subject/Keyword
Montney
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Playter, Tiffany L
Supervisor and department
J-P Zonneveld (Earth and Atmospheric Sciences)
Murray Gingras (Earth and Atmospheric Sciences)
Examining committee member and department
S. George Pemberton (Earth and Atmospheric Sciences)
Kurt Konhauser (Earth and Atmospheric Sciences)
Department
Department of Earth and Atmospheric Sciences
Specialization

Date accepted
2013-01-15T10:07:45Z
Graduation date
2013-06
Degree
Master of Science
Degree level
Master's
Abstract
Utilizing electron microprobe (EMP), scanning electron microscope (SEM) and petrographic analysis, 14 thin sections from the Upper Montney Formation were analyzed. Five microfacies were identified. Rock types observed include: dolomitic lithic arkos, dolomitic litharenite, dolomitic feldspathic litharenite and dolomitic feldspathic litharenite. These microfacies are interpreted to be dominantly event beds, possibly sourced from turbidity currents. Depositional environments range from the lower shoreface to offshore. Pyrite analysis suggests deposition in dominantly disoxyic conditions, with 3 anoxia spikes in association with a decrease in ocean acidity. Additionally, microfocus-computed tomographic analysis was conducted on a representative sample from the Upper Montney. By comparing these analyses with EMP images, 3-D mineral characterization was made possible. This technique reveals low overall porosity and the presence of dedolomite.
Language
English
DOI
doi:10.7939/R3QD5D
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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