Tectonomagmatic controls on Gondwana break-up models: Evidence from the Proto-Pacific Margin of Antarctica

• Published in: Tectonics
• Main Authors: Storey, Bryan C., Alabaster, Tony
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: American Geophysical Union 1991
• Subjects: Antarctic; The Antarctic; Antarctic Peninsula; Pacific; Rocas; Antarc*; Antarctica
• Online Access: http://nora.nerc.ac.uk/id/eprint/520185/; https://doi.org/10.1029/91TC01122

Geochemical and isotopic data are presented that suggest the existence of a large, Middle Jurassic subduction‐related magmatic province common to both the Antarctic Peninsula and southern South America. We argue that during the initial stages of Gondwana breakup, Pacific margin magmas were derived f...