A 1950 ± 60 Ma Rb–Sr whole-rock isochron age from two Kangâmiut dykes and the timing of the Nagssugtoqidian (Hudsonian) orogeny in West Greenland
- 1 July 1978
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Earth Sciences
- Vol. 15 (7) , 1122-1128
- https://doi.org/10.1139/e78-118
Abstract
Thirteen samples from two Kangâmiut dykes give a Rb–Sr whole-rock isochron age of 1950 ± 60 Ma. This age is interpreted as the age of intrusion of the dykes. The post-dyke Nagssugtoqidian orogeny took place between ca. 2000 and ca. 1800 Ma and can be correlated with the Hudsonian in Canada and the Laxfordian in Scotland.Keywords
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