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Eclogite at the Antarctic palaeo-Pacific active margin of Gondwana (Lanterman Range, northern Victoria Land, Antarctica)

C.A. Ricci, F. Talarico, R. Palmeri, G. Di Vincenzo, P.C. Pertusati
1996 Antarctic Science  

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Well-preserved eclogites were found for the first time in Antarctica, at the Lanterman Range, northern Victoria Land. They are part of a mafic-ultramafic belt that lies between the Wilson Terrane, representing part of the palaeo-Pacific margin of Gondwana, and the Bowers Terrane, a Cambro-Ordovician volcanic arc and related sediments, accreted to the margin during the Ross Orogeny. The eclogites formed at temperatures in the range 750-850°C and pressures above 15 kbar and subsequently
more » ... d a decompressional path to low pressure amphibolite facies conditions. The formation and exhumation of eclogites and the attainment of the metamorphic peak in adjacent rock units is consistent with a plate convergent setting model at the palaeo-Pacific margin of Gondwana.
doi:10.1017/s0954102096000399 fatcat:uob7a54dobcpzipmp3x6idp6qy
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C.A. Ricci, F. Talarico, R. Palmeri, G. Di Vincenzo, P.C. Pertusati. "Eclogite at the Antarctic palaeo-Pacific active margin of Gondwana (Lanterman Range, northern Victoria Land, Antarctica)." Antarctic Science (1996)