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Article: Hydrogen and oxygen isotope studies of metamorphic fluid-rock interactions in the Dabie Mountains

TitleHydrogen and oxygen isotope studies of metamorphic fluid-rock interactions in the Dabie Mountains
Authors
KeywordsEclogites
Fluid-Rock Interactions
Hydrogen Isotopes
Oxygen Isotopes
The Dabie Mountains
Uhp Metamorphism
Issue Date1999
Publisher中國科學院. The Journal's web site is located at http://jdxg.chinajournal.net.cn/
Citation
Science In China, Series D: Earth Sciences, 1999, v. 42 n. 1, p. 61-71 How to Cite?
AbstractHydrogen and oxygen isotope studies were carried out on mineral separates from high to ultrahigh pressure metamorphic rocks at Huangzhen and Shuanghe in the eastern Dabie Mountains, East China. The δ 18O values of eclogites cover a wide range of -5‰ to +9‰, but the δD values of micas fall within a narrow range of -85‰ to -70‰. 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 -5‰ to -1‰ for some of the eclogites represent the oxygen isotope compositions of their protoliths which underwent meteoric water-rock interaction prior to plate subduction. The preservation of oxygen isotope heterogeneity in the eclogites implies a channelized flow of fluids during progressive metamorphism caused by rapid subduction. Retrograde metamorphism has 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.
Persistent Identifierhttp://hdl.handle.net/10722/151015
ISSN
2011 Impact Factor: 1.588
References

 

DC FieldValueLanguage
dc.contributor.authorFu, Ben_US
dc.contributor.authorZheng, Yen_US
dc.contributor.authorLi, Yen_US
dc.contributor.authorXiao, Yen_US
dc.contributor.authorGong, Ben_US
dc.date.accessioned2012-06-26T06:15:51Z-
dc.date.available2012-06-26T06:15:51Z-
dc.date.issued1999en_US
dc.identifier.citationScience In China, Series D: Earth Sciences, 1999, v. 42 n. 1, p. 61-71en_US
dc.identifier.issn1006-9313en_US
dc.identifier.urihttp://hdl.handle.net/10722/151015-
dc.description.abstractHydrogen and oxygen isotope studies were carried out on mineral separates from high to ultrahigh pressure metamorphic rocks at Huangzhen and Shuanghe in the eastern Dabie Mountains, East China. The δ 18O values of eclogites cover a wide range of -5‰ to +9‰, but the δD values of micas fall within a narrow range of -85‰ to -70‰. 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 -5‰ to -1‰ for some of the eclogites represent the oxygen isotope compositions of their protoliths which underwent meteoric water-rock interaction prior to plate subduction. The preservation of oxygen isotope heterogeneity in the eclogites implies a channelized flow of fluids during progressive metamorphism caused by rapid subduction. Retrograde metamorphism has 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.en_US
dc.languageengen_US
dc.publisher中國科學院. The Journal's web site is located at http://jdxg.chinajournal.net.cn/zh_HK
dc.relation.ispartofScience in China, Series D: Earth Sciencesen_US
dc.subjectEclogitesen_US
dc.subjectFluid-Rock Interactionsen_US
dc.subjectHydrogen Isotopesen_US
dc.subjectOxygen Isotopesen_US
dc.subjectThe Dabie Mountainsen_US
dc.subjectUhp Metamorphismen_US
dc.titleHydrogen and oxygen isotope studies of metamorphic fluid-rock interactions 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.scopuseid_2-s2.0-0033018338en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033018338&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume42en_US
dc.identifier.issue1en_US
dc.identifier.spage61en_US
dc.identifier.epage71en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridFu, B=35960736900en_US
dc.identifier.scopusauthoridZheng, Y=7404838286en_US
dc.identifier.scopusauthoridLi, Y=27171876700en_US
dc.identifier.scopusauthoridXiao, Y=7403260575en_US
dc.identifier.scopusauthoridGong, B=7102144191en_US

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