Fig. 3From: Dating the initiation of Piemonte-Liguria Ocean subduction: Lu–Hf garnet chronometry of eclogites from the Theodul Glacier Unit (Zermatt-Saas zone, Switzerland)Photomicrographs of eclogite samples SW9 and SW14. a, b High-pressure paragenese of garnet and omphacite replaced by chlorite, biotite, calcic amphibole, and plagioclase veins, c omphacite replaced by fine-grained amphibole-plagioclase symplectite structures, d calcic amphibole pseudomorphically replacing clinopyroxene under crossed polarized light, e glaucophane associated with calcic amphibole and f randomly orientated paragonite. Grt garnet, Omp omphacite, Gln glaucophane, Bt biotite, Chl chlorite, Cam calcic amphibole, Pg paragoniteBack to article page