First evidence for Lower Cretaceous HP/HT-metamorphism in the Eastern Rhodope, North Aegean region, North-East Greece

Wawrzenitz, N; Mposkos, E

dc.contributor.author	Wawrzenitz, N	en
dc.contributor.author	Mposkos, E	en
dc.date.accessioned	2014-03-01T11:44:26Z
dc.date.available	2014-03-01T11:44:26Z
dc.date.issued	1997	en
dc.identifier.issn	0935-1221	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36947
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0030829091&partnerID=40&md5=8acc2adcc5a1a5eac791050b36a38ed9	en
dc.subject	Garnet-clinopyroxenite	en
dc.subject	Geochronology	en
dc.subject	HP/HT-metamorphism	en
dc.subject	Rhodope Zone	en
dc.subject	Sm-Nd	en
dc.subject.classification	Mineralogy	en
dc.subject.other	Cretaceous	en
dc.subject.other	metamorphism	en
dc.subject.other	pyroxenite	en
dc.subject.other	samarium/neodymium dating	en
dc.subject.other	Greece, Rhodope Massif	en
dc.title	First evidence for Lower Cretaceous HP/HT-metamorphism in the Eastern Rhodope, North Aegean region, North-East Greece	en
heal.type	other	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	In the Upper Unit of the Eastern Rhodope, North Aegean region, a Sm-Nd whole-rock, garnet and clinopyroxene isochron of a garnet-pyroxenite (metagabbro), corresponding to an age of 119.0 +/- 3.5 Ma, gives first evidence of a Lower Cretaceous UP-event in this area. The garnet-pyroxenites are characterised by the assemblage hornblende-spinel +/- olivine-garnet-clinopyroxene and are part of a metaperidotite complex This complex experienced HP/HT-metamorphism, together with the hosting metapelites and orthogneisses. In all rock types, this was followed by near isothermal decompression during exhumation of the metamorphic rocks. In contrast to the situation in the host rocks, HP-mineral assemblages of the investigated sample were not affected by plastic deformation and retrogression during decompression. It is thus assumed that the isotopic equilibrium attained during HP/HT-metamorphism was not disturbed during later events. In addition, Rb-Sr mica ages indicate differential uplift and different minimum ages of Alpine HP-metamorphism in quartzofeldspathic rocks in different tectonic units of the Eastern Rhodope.	en
heal.publisher	E SCHWEIZERBART'SCHE VERLAGS	en
heal.journalName	European Journal of Mineralogy	en
dc.identifier.isi	ISI:A1997XB31400017	en
dc.identifier.volume	9	en
dc.identifier.issue	3	en
dc.identifier.spage	659	en
dc.identifier.epage	664	en