An example of high‐pressure low‐temperature metamorphic rocks from an island‐arc: the Paikon Series (Innermost Hellenides, Greece)

Abstract The Paikon Series is considered to be a volcanic arc sequence with a mainly neritic sedimentary sequence and bimodal tholeiitic volcanism of early Mesozoic age. The metamorphic assemblages are syn‐ to post‐kinematic with respect to a pre‐Tithonian tectonic phase and range from the lawsonite‐chlorite‐albite facies through transitional Na‐amphibole‐greenschist facies to the chlorite sub‐zone of the greenschist facies. The metamorphic imprint of the Paikon Series corresponds to a temperature range from less than 330° C to ± 450° C under a total pressure from 3 kbar to 6–7 kbar. The overprinting of these facies on an earlier blueschist assemblage, related either to a subduction zone or to a tectonic overpressure caused by thrusting, is suspected.