Rb-Sr geochronology of Graham Land, Antarctica

Thirty-five new Rb-Sr whole-rock and mineral isochrons are reported for igneous rocks from Graham Land. Magmatism was essentially continuous but peaks of activity occurred in early Jurassic, early Cretaceous, late Cretaceous and Eocene times. The oldest dated granite is Triassic (209 ± 3 Ma). Volcan...

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Bibliographic Details
Published in:Journal of the Geological Society
Main Author: Pankhurst, R.J.
Format: Article in Journal/Newspaper
Language:unknown
Published: Geological Society of London 1982
Subjects:
Online Access:http://nora.nerc.ac.uk/id/eprint/524449/
https://doi.org/10.1144/gsjgs.139.6.0701