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Article: Hydrogen and oxygen isotope geochemistry of high to ultrahigh pressure metamorphic rocks from Southeast Dabie

TitleHydrogen and oxygen isotope geochemistry of high to ultrahigh pressure metamorphic rocks from Southeast Dabie
Authors
KeywordsDabieshan
Fluid-Rock Interaction
Hydrogen Isotopes
Metamorphic Rocks
Oxygen Isotopes
Ultrahigh Pressure
Issue Date2001
PublisherChinese Academy of Sciences, Institute of Geology and Geophysics. The Journal's web site is located at http://www.ysxb.ac.cn/ysxb/ch/index.aspx
Citation
Acta Petrologica Sinica, 2001, v. 17 n. 1, p. 49-60 How to Cite?
AbstractThe hydrogen and oxygen isotope compositions of single minerals and whole-rock were measured for coesitebearing eclogite at Shima and quartz-bearing eclogite at Huangzhen in southeastern Dabie. The δ 18O values of the eclogites vary from 1.0 to 7.4‰ at Shima but from -2.1 to 1.3‰ at Huangzhen; the δD values of micas from the eclogites are -76 to -61‰ at Shima and -89 to -77‰ at Huangzhen. Hydrogen and oxygen isotope fractionations between the minerals are in both equilibrium and disequilibrium, indicating that the eclogites have not only inherited the 18O-depletion feature of their protoliths, but also experienced strong retrograde alteration during exhumation. Oxygen isotope temperatures of the eclogite mineral-pairs are cumulated at two peak values of 600 to 640°C and 380 to 430 °C, respectively, corresponding to retrograde reequilibration at greenschist-facie and high amphibolite-facies conditions; the peak eclogite-facies temperatures of 750 to 800°C cannot be retrieved due to the strong retrograde alteration. The high and ultrahigh pressure rocks in southeastern Dabie are geologically separated by the quartz-bearing eclogite and granitic gneiss, but the oxygen isotope analyses indicate an in situ relationship between the two rocks.
Persistent Identifierhttp://hdl.handle.net/10722/151055
ISSN
2023 Impact Factor: 1.7
2023 SCImago Journal Rankings: 0.626
References

 

DC FieldValueLanguage
dc.contributor.authorLi, YLen_US
dc.contributor.authorZheng, YFen_US
dc.contributor.authorFu, Ben_US
dc.contributor.authorLi, Len_US
dc.date.accessioned2012-06-26T06:16:34Z-
dc.date.available2012-06-26T06:16:34Z-
dc.date.issued2001en_US
dc.identifier.citationActa Petrologica Sinica, 2001, v. 17 n. 1, p. 49-60en_US
dc.identifier.issn1000-0569en_US
dc.identifier.urihttp://hdl.handle.net/10722/151055-
dc.description.abstractThe hydrogen and oxygen isotope compositions of single minerals and whole-rock were measured for coesitebearing eclogite at Shima and quartz-bearing eclogite at Huangzhen in southeastern Dabie. The δ 18O values of the eclogites vary from 1.0 to 7.4‰ at Shima but from -2.1 to 1.3‰ at Huangzhen; the δD values of micas from the eclogites are -76 to -61‰ at Shima and -89 to -77‰ at Huangzhen. Hydrogen and oxygen isotope fractionations between the minerals are in both equilibrium and disequilibrium, indicating that the eclogites have not only inherited the 18O-depletion feature of their protoliths, but also experienced strong retrograde alteration during exhumation. Oxygen isotope temperatures of the eclogite mineral-pairs are cumulated at two peak values of 600 to 640°C and 380 to 430 °C, respectively, corresponding to retrograde reequilibration at greenschist-facie and high amphibolite-facies conditions; the peak eclogite-facies temperatures of 750 to 800°C cannot be retrieved due to the strong retrograde alteration. The high and ultrahigh pressure rocks in southeastern Dabie are geologically separated by the quartz-bearing eclogite and granitic gneiss, but the oxygen isotope analyses indicate an in situ relationship between the two rocks.en_US
dc.languageengen_US
dc.publisherChinese Academy of Sciences, Institute of Geology and Geophysics. The Journal's web site is located at http://www.ysxb.ac.cn/ysxb/ch/index.aspxen_US
dc.relation.ispartofActa Petrologica Sinicaen_US
dc.subjectDabieshanen_US
dc.subjectFluid-Rock Interactionen_US
dc.subjectHydrogen Isotopesen_US
dc.subjectMetamorphic Rocksen_US
dc.subjectOxygen Isotopesen_US
dc.subjectUltrahigh Pressureen_US
dc.titleHydrogen and oxygen isotope geochemistry of high to ultrahigh pressure metamorphic rocks from Southeast Dabieen_US
dc.typeArticleen_US
dc.identifier.emailLi, YL:yiliang@hkucc.hku.hken_US
dc.identifier.authorityLi, YL=rp01354en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-84978009893en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034928096&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume17en_US
dc.identifier.issue1en_US
dc.identifier.spage49en_US
dc.identifier.epage60en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridLi, YL=27171876700en_US
dc.identifier.scopusauthoridZheng, YF=7404838286en_US
dc.identifier.scopusauthoridFu, B=35960736900en_US
dc.identifier.scopusauthoridLi, L=7501449695en_US
dc.identifier.issnl1000-0569-

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