Blueschists and eclogites of the world and their exhumation

S. Maruyama, J. G. Liou, M. Terabayashi

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Abstract

High-P/T metamorphic belts were classified into types A and B according to their protoliths. The A-type (collision-type) blueschists possess passive-margin protoliths characterized by platform-type carbonates, bimodal volcanics, and peraluminous sediments. B-type (Cordilleran-type) blueschists consist of active continental-margin protoliths in an accretionary complex characterized by bedded chert, MORB and ocean-island basalts, reef limestones, and graywackes. The spatiotemporal distribution of blueschists and eclogites of the world was compiled; among 250 recognized high-P/T belts, about 20% belong to the A type and the rest to the B type. Most A-type zones lie in Europe and the Tethyan domain, include ultrahigh-pressure metamorphic terranes, and have metamorphic pressure up to 45 kbar. B-type zones occur mainly in the circum-Pacific orogenic belts and intracontinental orogens in Asia, and were recrystallized at P

Original languageEnglish
Pages (from-to)485-594
Number of pages110
JournalInternational Geology Review
Volume38
Issue number6
Publication statusPublished - Jun 1996
Externally publishedYes

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ASJC Scopus subject areas

  • Geology

Cite this

Maruyama, S., Liou, J. G., & Terabayashi, M. (1996). Blueschists and eclogites of the world and their exhumation. International Geology Review, 38(6), 485-594.