Auto-epitaxy of garnet of crystalline schists of the metamorphic complex from the Central Kamchatka (to problem of the formation of atoll garnets)

Abstract

The nature of the atoll forms of garnet of crystalline schists of the Early Paleogene metamorphic complex of Central Kamchatka is investigated. It has been established that atoll garnets were formed during the auto-epitaxy (growth) of a garnet of regional metamorphism (early Paleogene) into relict garnet crystals of a contact-metamorphic nature (Early Cretaceous), with the replacement of relict garnet nuclei by the association of newly formed metamorphic minerals.