Neoproterozoic U–Pb (zircon) and ⁴⁰Ar/³⁹Ar (muscovite) ages from granitic pegmatite clasts, basal Ross Island Formation, Grand Manan Island, New Brunswick, Canada
Zircon grains from a granitic pegmatite clast from conglomerate at the base of the Ross Island Formation on Grand Manan Island indicate an igneous crystallization age of 664.1 ± 4.6 Ma. The clast also contains abundant older inherited grains back to the Archean. Muscovite in the same clast and an ad...
| Published in: | Atlantic Geology |
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| Main Authors: | , |
| Format: | Text |
| Language: | English |
| Published: |
Atlantic Geoscience Society
2019
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| Subjects: | |
| Online Access: | http://id.erudit.org/iderudit/1062535ar https://doi.org/10.4138/atlgeol.2019.009 |