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. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/19917 |
| Date | January 1976 |
| Creators | Birnie, David John |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| 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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