ALBITE-EPIDOTE GRANOFELS FROM CHALUPKI METASEDIMENTARY SEQUENCE (DOBOSZOWICE METAMORPHIC UNIT, FORE-SUDETIC BLOCK, SW POLAND)

摘要

Small (0.5m long) boudins of the albite-epidote granofels occur within the amphibolite and epidote-amphibolite facies rocks forming eastern part of the Doboszowice Metamorphic Unit (Fore-Sudetic Block, NE Bohemian Massif). The granofels belongs to the greenschist facies and marks last stages of retrogressive metamorphism in the region. The low-grade mineral assemblage originated in a zone of high strain from a protolith whose composition was sensitive to retrogressive metamorphic reactions.