A Silurian U–Pb age for the Cape St. Mary's sills, Avalon Peninsula, Newfoundland, Canada: implications for Silurian orogenesis in the Avalon Zone

• Published in: Canadian Journal of Earth Sciences
• Main Authors: Greenough, John D., Kamo, Sandra L., Krogh, Thomas E.
• Format: Article in Journal/Newspaper
• Language: French
• Published: Canadian Science Publishing 1993
• Subjects: General Earth and Planetary Sciences; Canada; Dover; Newfoundland
• Online Access: http://dx.doi.org/10.1139/e93-138; http://www.nrcresearchpress.com/doi/pdf/10.1139/e93-138

Mafic sills from Cape St. Mary's on the Avalon Peninsula of Newfoundland give an U–Pb baddeleyite age of 441 ± 2 Ma. This age corresponds with the earliest ages recorded for the climactic Silurian orogenic event that dominantly affected rocks of the Central Mobile Belt in Newfoundland. The age...