Metamorphic Evolution and P -T Conditions of Eclogite -Amphibolites in the Buchim Block, Serbo -Macedonian Massif, Macedonia

Mircovski, V. and Korikovsky, Sergey and Stojanov, Risto and Boev, Blazo (1997) Metamorphic Evolution and P -T Conditions of Eclogite -Amphibolites in the Buchim Block, Serbo -Macedonian Massif, Macedonia. Proceeding - Magmatism, Metamorphism and metallogency if the Vardar zone and Serbo-Macedonian massif.

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Abstract

Microstructural characteristics and mineral assemblage indicate prograde and retrograde stage in the metamorphic evolution of eclogite -amphibolites of the Buchim block. Based on Fe/Mg distribution between clinopyroxene and garnet and the content of Jd component in clinopyroxene, maximum T of 570 to 650°C and P of 12 - 12.5 Kbar were determined for prograde eclogitic stage. The increase of the content of anorthitic component in plagioclase of reaction symplectites as weII as progressive zoning in garnets surrounded by hornblende - plagioclase symplectite indicates an increase of T in the initial stage of uplift, and later T get "normal" retrograde trend and decrease due to uplift movement. P - T condition determined that maximum depth at which metamor-phose took place ranges from 47 km (P == 12 - 12.5 Kbar) that coincides to temperature gradient to 14°C/km.

Item Type: Article
Uncontrolled Keywords: eclogite -amphibolites, omphacite, garnet, plagioclase, thermo-metry, metamorphism
Subjects: Engineering and Technology > Other engineering and technologies
Social Sciences > Other social sciences
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Blazo Boev
Date Deposited: 03 Dec 2012 15:08
Last Modified: 21 Aug 2013 14:09
URI: http://eprints.ugd.edu.mk/id/eprint/2959

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