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UBC Theses and Dissertations
Geochronology of the Clachnacudainn Gneiss, located near Revelstoke, B.C. Birnie, David John
Abstract
K-Ar biotite ages and Rb-3r mineral isochron ages indicate that a 55 m. yr. old Tertiary thermal event has affected the rocks of the Clachnacudainn Salient of the Shuswap Metamorphic Complex. An attempt was made to date the Clachnacudainn Gneiss by the Rb-Sr whole rock method. It was hoped that this study would provide some insight into the problem of determining the origin of the gneiss. However, the data shows considerable scatter with no systematic pattern to it. This, together with petrographic evidence, suggests that the closed system assumption has not been maintained. Thus no isochron could be determined. Several suggestions are presented to account for the scatter in the data.
Item Metadata
Title |
Geochronology of the Clachnacudainn Gneiss, located near Revelstoke, B.C.
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1976
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Description |
K-Ar biotite ages and Rb-3r mineral isochron ages indicate that a 55 m. yr. old Tertiary thermal event has affected the rocks of the Clachnacudainn Salient of the Shuswap Metamorphic Complex.
An attempt was made to date the Clachnacudainn Gneiss by the Rb-Sr whole rock method. It was hoped that this study would provide some insight into the problem of determining the origin of the gneiss. However, the data shows considerable scatter with no systematic pattern to it. This, together with petrographic evidence, suggests that the closed system assumption has not been maintained. Thus no isochron could be determined. Several suggestions are presented to account for the scatter in the data.
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Geographic Location | |
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Type | |
Language |
eng
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Date Available |
2010-02-09
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0052549
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.