Late Proterozoic and Silurian alkaline plutons within the southeastern New England Avalon zone
Document Type
Article
Date of Original Version
1-1-1992
Abstract
Zircon separates from the Franklin and Dartmouth plutons demonstrate that two previously unrecognized periods of alkaline magmatism occurred. The Franklin pluton yields an age of 417±6 Ma (Late Silurian), whereas the Dartmouth pluton is Late Proterozoic (595±5 Ma) and markedly older than the other plutons of alkaline affinity. The new ages further emphasize the episodic nature and long-term duration of such alkaline igneous events within the southeastern New England Avalon zone. -from Authors
Publication Title, e.g., Journal
Journal of Geology
Volume
100
Issue
4
Citation/Publisher Attribution
Hermes, O. D., and R. E. Zartman. "Late Proterozoic and Silurian alkaline plutons within the southeastern New England Avalon zone." Journal of Geology 100, 4 (1992). doi: 10.1086/629599.
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