Palaeomagnetism of the ca. 440 Ma Cape St Mary's sills of the Avalon Peninsula of Newfoundland: implications for Iapetus Ocean closure

• Published in: Geophysical Journal International
• Main Authors: Hodych, Joseph P., Buchan, Kenneth L.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Royal Astronomical Society 1998
• Subjects: Dunn Point; Newfoundland
• Online Access: https://research.library.mun.ca/6201/; https://research.library.mun.ca/6201/1/Palaeomagnetism.of.the.ca.440.Ma.Cape.pdf; https://research.library.mun.ca/6201/3/Palaeomagnetism.of.the.ca.440.Ma.Cape.pdf; https://doi.org/10.1046/j.1365-246X.1998.00263.x

We report on the palaeomagnetism of the gabbroic Cape St Mary’s sills of the Avalon Peninsula of Newfoundland, which have previously yielded a 441±2 Ma U–Pb baddeleyite age (latest Ordovician or earliest Silurian). At 12 of 19 sites, stepwise alternating-field or thermal demagnetization isolated a s...