Abstract

We infer that the Trinity Peninsula Group of the Antarctic Peninsula was deposited in a fore-arc basin(s) of composite type located between the Gondwanian arc massif (consisting of plutonic and older gneissose basement rocks) and a subduction complex, now represented by “greenschists”, “blueschists” and albite-epidote-hornblende-bearing rocks of the pre-Jurassic metamorphic complex.

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