New K-Ar isotopic ages of schists from Nordenskjöld Coast, Antarctic Peninsula: oldest part of the Trinity Peninsula Group?

• Published in: Antarctic Science
• Main Authors: Smellie, J.L., Millar, I.L.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Cambridge University Press 1995
• Subjects: Earth Sciences; Antarctic; The Antarctic; Antarctic Peninsula; Graham Land; Trinity Peninsula; Nordenskjöld; Nordenskjöld Coast; Antarc*; Antarctic Science
• Online Access: http://nora.nerc.ac.uk/id/eprint/515846/; https://doi.org/10.1017/S0954102095000253

K-Ar whole-rock dating of five samples of quartz-mica schist from the Nordenskjöld Coast, eastern Graham Land, provides the first unequivocal evidence of pre-Triassic (> 249 ± 7 Ma) deposition of a sequence regarded as part of the Trinity Peninsula Group (TPG). A maximum age range of latest Carbo...