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U-Pb geochronological constraints on Precambrian stratified units in the Avalon Composite Terrane of Nova Scotia, Canada: tectonic implications

โœ Scribed by Keppie, J Duncan; Davis, D W; Krogh, T E


Book ID
118221518
Publisher
NRC Research Press
Year
1998
Tongue
English
Weight
457 KB
Volume
35
Category
Article
ISSN
0008-4077

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The Cobequid Highlands in the Canadian Appalachian orogen lie within Avalonia adjacent to the Meguma Terrane. IJ -Pb (zircon) data show that the age range of voluminous bimodal plutonism in the highlands is from 358 to 363 Ma (late Devonian). This age range is much narrower than that previously sugg