Geochronology of the Twillingate Granite and Herring Neck Group, Notre Dame Bay, Newfoundland
Zircons from the Twillingate Granite form a linear array with a concordia intercept of 510 + 17 – 16 m.y. Mafic dikes that cut deformed granite along the southern contact of the pluton at New World Island record 40 Ar/ 39 Ar hornblende ages of 440 ± 10 and 473 ± 9 m.y. These ages indicate that the m...
Published in: | Canadian Journal of Earth Sciences |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1976
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Subjects: | |
Online Access: | http://dx.doi.org/10.1139/e76-166 http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-166 |