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Article: Hydrogen and oxygen isotope evidence for fluid-rock interactions in the stages of pre- and post-UHP metamorphism in the Dabie Mountains

TitleHydrogen and oxygen isotope evidence for fluid-rock interactions in the stages of pre- and post-UHP metamorphism in the Dabie Mountains
Authors
KeywordsEclogite
Fluid-Rock Interaction
Metamorphism
Plate Subduction
Stable Isotope
The Dabie Mountains
Issue Date1999
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/lithos
Citation
Lithos, 1999, v. 46 n. 4, p. 677-693 How to Cite?
AbstractHydrogen and oxygen isotope studies were carried out on high and ultrahigh pressure metamorphic rocks in the eastern Dabie Mountains, China. The δ 18O values of eclogites cover a wide range of -4.2 to +8.8‰, but the δD values of micas from the eclogites fall within a narrow range of -87 to -71‰. Both equilibrium and disequilibrium oxygen isotope fractionations were observed between quartz and the other minerals, with reversed fractionations between omphacite and garnet in some eclogite samples. The δ 18O values of -4 to -1‰ for some of the eclogites represent the oxygen isotope compositions of their protoliths which underwent meteoric water-rock interaction before the high to ultrahigh pressure metamorphism. Hetetogeneous δ 18O values for the eclogite protoliths implies not only the varying degrees of the water-rock interaction before the metamorphism at different localities, but also the channelized flow of fluids during progressive metamorphism due to rapid plate subduction. Retrograde metamorphism caused oxygen and hydrogen isotope disequilibria between some of the minerals, but the fluid for retrograde reactions was internally buffered in the stable isotope compositions and could be derived from structural hydroxyls dissolved in nominally anhydrous minerals.
Persistent Identifierhttp://hdl.handle.net/10722/151011
ISSN
2015 Impact Factor: 3.723
2015 SCImago Journal Rankings: 2.920
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZheng, YFen_US
dc.contributor.authorFu, Ben_US
dc.contributor.authorXiao, Yen_US
dc.contributor.authorLi, Yen_US
dc.contributor.authorGong, Ben_US
dc.date.accessioned2012-06-26T06:15:47Z-
dc.date.available2012-06-26T06:15:47Z-
dc.date.issued1999en_US
dc.identifier.citationLithos, 1999, v. 46 n. 4, p. 677-693en_US
dc.identifier.issn0024-4937en_US
dc.identifier.urihttp://hdl.handle.net/10722/151011-
dc.description.abstractHydrogen and oxygen isotope studies were carried out on high and ultrahigh pressure metamorphic rocks in the eastern Dabie Mountains, China. The δ 18O values of eclogites cover a wide range of -4.2 to +8.8‰, but the δD values of micas from the eclogites fall within a narrow range of -87 to -71‰. Both equilibrium and disequilibrium oxygen isotope fractionations were observed between quartz and the other minerals, with reversed fractionations between omphacite and garnet in some eclogite samples. The δ 18O values of -4 to -1‰ for some of the eclogites represent the oxygen isotope compositions of their protoliths which underwent meteoric water-rock interaction before the high to ultrahigh pressure metamorphism. Hetetogeneous δ 18O values for the eclogite protoliths implies not only the varying degrees of the water-rock interaction before the metamorphism at different localities, but also the channelized flow of fluids during progressive metamorphism due to rapid plate subduction. Retrograde metamorphism caused oxygen and hydrogen isotope disequilibria between some of the minerals, but the fluid for retrograde reactions was internally buffered in the stable isotope compositions and could be derived from structural hydroxyls dissolved in nominally anhydrous minerals.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/lithosen_US
dc.relation.ispartofLithosen_US
dc.subjectEclogiteen_US
dc.subjectFluid-Rock Interactionen_US
dc.subjectMetamorphismen_US
dc.subjectPlate Subductionen_US
dc.subjectStable Isotopeen_US
dc.subjectThe Dabie Mountainsen_US
dc.titleHydrogen and oxygen isotope evidence for fluid-rock interactions in the stages of pre- and post-UHP metamorphism in the Dabie Mountainsen_US
dc.typeArticleen_US
dc.identifier.emailLi, Y:yiliang@hkucc.hku.hken_US
dc.identifier.authorityLi, Y=rp01354en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S0024-4937(98)00090-5en_US
dc.identifier.scopuseid_2-s2.0-0032771380en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032771380&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume46en_US
dc.identifier.issue4en_US
dc.identifier.spage677en_US
dc.identifier.epage693en_US
dc.identifier.isiWOS:000080214500003-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridZheng, YF=24333612100en_US
dc.identifier.scopusauthoridFu, B=35960736900en_US
dc.identifier.scopusauthoridXiao, Y=7403260575en_US
dc.identifier.scopusauthoridLi, Y=27171876700en_US
dc.identifier.scopusauthoridGong, B=7102144191en_US

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