Tracing high-pressure metamorphism in marbles: Phase relations in high-grade aluminous calcite-dolomite marbles from the Greek Rhodope massif in the system CaO-MgO-Al2O3-SiO2-CO2 and indications of prior aragonite

Proyer, A; Mposkos, E; Baziotis, I; Hoinkes, G

dc.contributor.author	Proyer, A	en
dc.contributor.author	Mposkos, E	en
dc.contributor.author	Baziotis, I	en
dc.contributor.author	Hoinkes, G	en
dc.date.accessioned	2014-03-01T01:29:23Z
dc.date.available	2014-03-01T01:29:23Z
dc.date.issued	2008	en
dc.identifier.issn	0024-4937	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19251
dc.subject	Aragonite	en
dc.subject	Calcite-dolomite-marble	en
dc.subject	Garnet	en
dc.subject	Petrogenetic grid	en
dc.subject	Spinel	en
dc.subject	Ultrahigh-pressure	en
dc.subject.classification	Geochemistry & Geophysics	en
dc.subject.classification	Mineralogy	en
dc.subject.other	aragonite	en
dc.subject.other	calcite	en
dc.subject.other	dolomite	en
dc.subject.other	fluid inclusion	en
dc.subject.other	garnet	en
dc.subject.other	marble	en
dc.subject.other	paragenesis	en
dc.subject.other	preservation	en
dc.subject.other	spinel	en
dc.subject.other	thermodynamics	en
dc.subject.other	ultrahigh pressure metamorphism	en
dc.subject.other	Eastern Macedonia and Thrace	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Rhodope	en
dc.subject.other	Southern Europe	en
dc.title	Tracing high-pressure metamorphism in marbles: Phase relations in high-grade aluminous calcite-dolomite marbles from the Greek Rhodope massif in the system CaO-MgO-Al2O3-SiO2-CO2 and indications of prior aragonite	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.lithos.2007.12.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.lithos.2007.12.002	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Four different types of parageneses of the minerals calcite, dolomite, diopside, forsterite, spinel, amphibole (pargasite), (Ti-)clinohumite and phlogopite were observed in calcite-dolomite marbles collected in the Kimi-Complex of the Rhodope Metamorphic Province (RMP). The presence of former aragonite can be inferred front carbonate inclusions, which, in combination with an analysis of phase relations in the simplified system CaO-MgO-Al2O3-SiO2-CO2 (CMAS-CO2) show that the mineral assemblages preserved in these marbles most likely equilibrated at the aragonite-calcite transition, slightly below the coesite stability field, at ca. 720 degrees C, 25 kbar and a(CO2)similar to 0.01. The thermodynamic model predicts that no matter what activity of CO2, garnet has to be present in aluminous calcite-dolomite-marble at UHP conditions. (C) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Lithos	en
dc.identifier.doi	10.1016/j.lithos.2007.12.002	en
dc.identifier.isi	ISI:000259667400008	en
dc.identifier.volume	104	en
dc.identifier.issue	1-4	en
dc.identifier.spage	119	en
dc.identifier.epage	130	en