Chemical composition-of the actinolite-hornblende assemblage as indicator for the P-T metamorphic conditions in chlorite-amphibole schits and metadiabases Vrteska, Plackovloa Mt, Eastern Macedonia

Mircovski, Vojo and Boev, Blazo and Spasovski, Orce (2003) Chemical composition-of the actinolite-hornblende assemblage as indicator for the P-T metamorphic conditions in chlorite-amphibole schits and metadiabases Vrteska, Plackovloa Mt, Eastern Macedonia. Geologica Balcanica, 33 (3-4). pp. 23-31. ISSN 0324-0894

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Abstract

Microscopic and electronic microprobe studies carried out on the chlorite - amphibole schists and the metadiabases from the vicinity of Vrteska determined an actionolite, Mg - hornblende, biotite, epidote, chorite, albite, quartz, and ilmenite assemblage. The metamorphic mineral assemblage andstructural - textural characteristics indicate that these rocks metamorphosed in conditions of regional dynamothermal metamorphism in a Berovian type series of facies which, according to the degree of metamorphism, corresponds to the transition from quartz-albite-epidote-biotite to quartz-albite-epidote-almnedine subfacies. The chemical composition of actinolite and hornblende indicate that the rock under investigation metamorphosed in conditions of prograde metamorphism at T - 400-500 C and P -2-5 kbar.

Item Type: Article
Uncontrolled Keywords: Actionolite, Mg-hornblende, chlrite, regional prograde metamorphism
Subjects: Engineering and Technology > Other engineering and technologies
Natural sciences > Other natural sciences
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Blazo Boev
Date Deposited: 29 Nov 2012 13:22
Last Modified: 11 Jun 2013 11:19
URI: http://eprints.ugd.edu.mk/id/eprint/2444

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