I read a good article about the geology of the antarctic peninsula and the facts discovered surrounding the mesozoic-cenezoic subduction of the pacific ocean floor. The rocks found are similar to the Andean rocks of south america, which contain calcareous-alkaline remnants of now fragmented western margin of Gondwana extending from south america to the antarctic peninsula. The paper attempts to assess the compositional variation of amphibole in relations to host rock composition since amphibole is commonly found in all members of the magma present on the peninsula.
check out the article at google books