Evolution of the eclogites in the Rhodope Zone of northern Greece

Liati, A; Mposkos, E

dc.contributor.author	Liati, A	en
dc.contributor.author	Mposkos, E	en
dc.date.accessioned	2014-03-01T01:07:53Z
dc.date.available	2014-03-01T01:07:53Z
dc.date.issued	1990	en
dc.identifier.issn	0024-4937	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10226
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0025596440&partnerID=40&md5=e7587583eaf76ae15ff42ffd353d55e4	en
dc.subject.classification	Geochemistry & Geophysics	en
dc.subject.classification	Mineralogy	en
dc.subject.other	eclogite	en
dc.subject.other	high pressure metamorphism	en
dc.subject.other	metamorphic evolution	en
dc.subject.other	mineral composition	en
dc.subject.other	uplift	en
dc.subject.other	Greece, Balkan Peninsula, Rhodope	en
dc.title	Evolution of the eclogites in the Rhodope Zone of northern Greece	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1990	en
heal.abstract	The polymetamorphic complex of Rhodope in the southern Balkan Peninsula has been affected by three successive metamorphic episodes. These are (1) a high-pressure, (2) a Barrow-type and (3) a greenschist-facies, retrograde metamorphic episode. Based on the different metamorphic grades of the Barrovian metamorphism, the Rhodope Zone can be subdivided into two tectonic units, a lower and an upper one. Commonly amphibolitised eclogites of probable Mesozoic age occur in both units (a) in the shape of lenses, (b) as concordant interbeds with other rock types such as gneisses and marbles and (c) as metagabbroic dykes. The high-pressure mineral assemblage is: garnet-omphacite-quartz-Ca-amphibole-clinozoisite/zoisite-rutile±kyanite. In eclogites of gabbroic origin, igneous relics, such as igneous plagioclase, augite and ilmenite are sometimes preserved. PT-conditions of 14 kbar and 550°-600°C were determined for the high-pressure metamorphism in the lower tectonic unit. Symplectites of clinopyroxene-plagioclase, Ca-amphibole-plagioclase, biotite-plagioclase and spinel-plagioclase are common and are attributed to post-eclogitic reactions during uplift. Changes in mineral composition of high-pressure phases such as garnet, Ca-amphibole and Na-pyroxene reflect a re-equilibration tendency during unloading. © 1990.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	LITHOS	en
dc.identifier.isi	ISI:A1990EL43900007	en
dc.identifier.volume	25	en
dc.identifier.issue	1-3	en
dc.identifier.spage	89	en
dc.identifier.epage	99	en