Original paper
Aragonite-bearing blueschists on Arki island, Dodecanese, Greece
Franz, Leander; Okrusch, Martin
European Journal of Mineralogy Volume 4 Number 3 (1992), p. 527 - 538
42 references
published: Jun 4, 1992
manuscript accepted: Nov 21, 1991
manuscript received: Mar 29, 1991
DOI: 10.1127/ejm/4/3/0527
Abstract
Abstract On the island of Arki, aragonite-bearing blueschists are recorded within the Temenia Nappe forming the lowermost unit of the Dodecanese nappe pile. The critical mineral assemblages glaucophane - phengite - chlorite - albite - epidote - aragonite (- calcite) in the blueschists and albite - epidote - chlorite - phengite - winchite - calcite (probably after initial aragonite) in the related, isofacial greenschists indicate a subduction-related metamorphism with pressures of 7 to 10 kbar and temperatures of 300 to 400°C. The geological significance of this new blueschist occurrence is discussed
Keywords
blueschists • greenschists • glaucophane • winchite • aragonite • Hellenides