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A petrographic study of the relationship of the Timiskaming [sic] to Grenville subprovince Johnston, William George
Abstract
A study of the granitic rock types along the Contact of the Timiskaming and Grenville subprovinces to the east of lake Timagami has been made. In the vicinity of the contact of the two subprovinces in the granites of the Grenville subprovince is a wide zone of faulting near which the rocks show wide spread cataclastic texture due to crushing. In this area the granite in the Grenville sub-province is very distinct from the Algoman granite of the Timiskaming subprovince and later than it. The granite in the Grenville subprovince is much fresher than the Algoman granite and unlike the Algoman is high in potash feldspar as determined by Rosiwal analyses. In the latter and other respects it strongly resembles the Killarney granite in Pardo and Dana townships and to the south along the north shore of Lake Huron. In Sisk township it contains a rather rare amphibole hastingsite which is also found in the Creighton granite of Killarney age.
Item Metadata
Title |
A petrographic study of the relationship of the Timiskaming [sic] to Grenville subprovince
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1947
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Description |
A study of the granitic rock types along the Contact of the Timiskaming and Grenville subprovinces to the east of lake Timagami has been made. In the vicinity of the contact of the two subprovinces in the granites of the Grenville subprovince is a wide zone of faulting near which the rocks show wide spread cataclastic texture due to crushing. In this area the granite in the Grenville sub-province is very distinct from the Algoman granite of the Timiskaming subprovince and later than it. The granite in the Grenville subprovince is much fresher than the Algoman granite and unlike the Algoman is high in potash feldspar as determined by Rosiwal analyses. In the latter and other respects it strongly resembles the Killarney granite in Pardo and Dana townships and to the south along the north shore of Lake Huron. In Sisk township it contains a rather rare amphibole hastingsite which is also found in the Creighton granite of Killarney age.
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Genre | |
Type | |
Language |
eng
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Date Available |
2012-03-23
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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 |
10.14288/1.0053528
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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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Item Media
Item Citations and Data
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.