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Coesite from the Dabie Shan eclogites, central China
Okay, Aral I.; Shutong, Xu; Sengör, A. M. Celal
European Journal of Mineralogy Volume 1 Number 4 (1989), p. 595 - 598
13 références bibliographiques
publié: Mar 20, 1989
manuscrit accepté: Jun 16, 1989
manuscrit reçu: Jun 12, 1989
DOI: 10.1127/ejm/1/4/0595
Abstract
Abstract A coesite inclusion in garnet from an amphibolitized eclogite is described from the Dabie Shan region in central China. The eclogite with coesite occurs as a nodule (boudin?) in a several metres thick marble band in a regional eclogite fades terrain dominated by leucocratic garnet-bearing gneisses and eclogite bands. Probable quartz pseudomorphs after coesite have also been discovered as inclusions in garnet and omphacite from other localities in the Dabie Shan region, suggesting that a crustal slice of over 1000 km2 in area has been subducted to depths of over 90 km
Mots-clefs
coesite • eclogite • Dabie Shan • China