High-pressure metamorphism in gneisses and pelitic schists in the East Rhodope zone (N. Greece)

Mposkos, E

dc.contributor.author	Mposkos, E	en
dc.date.accessioned	2014-03-01T01:07:30Z
dc.date.available	2014-03-01T01:07:30Z
dc.date.issued	1989	en
dc.identifier.issn	0930-0708	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10023
dc.subject.classification	Geochemistry & Geophysics	en
dc.subject.classification	Mineralogy	en
dc.title	High-pressure metamorphism in gneisses and pelitic schists in the East Rhodope zone (N. Greece)	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01164808	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01164808	en
heal.language	English	en
heal.publicationDate	1989	en
heal.abstract	The high-alumina metapelites and the orthogneisses of the lower tectonic unit of East Rhodope underwent high P/T metamorphism followed by partial reequilibration during decompression under epidote-amphibolite/amphibolite facies to greenschist facies conditions. The high P/T mineral paragenesis in the orthogneisses is: quartz + albite + microcline + phengite (Simax = 7 atoms p.f.u.) + biotite and in the high alumina metapelites: garnet + chloritoid + chlorite + phengite (Simax. = 6.85 atoms p.f u.) + paragonite + quartz. Pressures between 14 and 15.5 kbar, for Tmin = 550°C, are estimated for the high P/T metamorphism. During continuing uplift, staurolite + chlorite, staurolite + biotite and finally andalusite + Fe-ripidolite are grown at the expense of chloritoid in metapelites, while in the orthogneisses oligoclase, still coexisting with albite, is formed; in both rock types the Si content of white K-mica decreases considerably from almost pure phengite to pure muscovite. © 1989 Springer-Verlag.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Mineralogy and Petrology	en
dc.identifier.doi	10.1007/BF01164808	en
dc.identifier.isi	ISI:A1989CL99900003	en
dc.identifier.volume	41	en
dc.identifier.issue	1	en
dc.identifier.spage	25	en
dc.identifier.epage	39	en