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Article: Buffering of metamorphic reaction temperature by metamorphic fluids in mayuan group, northern fujian province

TitleBuffering of metamorphic reaction temperature by metamorphic fluids in mayuan group, northern fujian province
Authors
KeywordsBuffering
Mayuan Group
Metamorphic Fluids
Metamorphic Reaction Temperature
Issue Date1996
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, 1996, v. 12 n. 1, p. X5-69 How to Cite?
AbstractMetamorphic rocks in Mayuan Group in northern Fujian Province are outcropped in the form of Barrow belts from chlorite, biotite, garnet, staurolite, kyanite to sillimanite zones. The calculations - from geothermometer indicate that the metamorphic temperature of kyanite zone (470°C- 500°C) is obviously lower than that of garnet zone and staurolite zone. It means that kyanite zone was formed before garnet zone and staurolite zone. This is evidently inconsistent with the traditional theory of metamorphic belts. Chemical equilibrium calculations of fluid composition and thermodynamical analysis of metamorphic reactions show that the lower metamorphic temperature of kyanite zone is resulted not from the effect of metamorphic pressure and retrogressive metamorphism but from the buffering of temperature of dehydration metamorphic reaction forming kyanite by fluids with lower XH2o. The buffered temperature range is up to 100°C-200°C. The paper discusses the buffering mechanism and buffering intensity from thermodynamics and emphasizes the important role of metamorphic fluids in the studies of metamorphic facies and metamorphic belts.
Persistent Identifierhttp://hdl.handle.net/10722/150988
ISSN
2014 Impact Factor: 1.455
2014 SCImago Journal Rankings: 0.924
References

 

DC FieldValueLanguage
dc.contributor.authorZhao, Gen_US
dc.contributor.authorSun, Den_US
dc.contributor.authorHe, Ten_US
dc.date.accessioned2012-06-26T06:15:33Z-
dc.date.available2012-06-26T06:15:33Z-
dc.date.issued1996en_US
dc.identifier.citationActa Petrologica Sinica, 1996, v. 12 n. 1, p. X5-69en_US
dc.identifier.issn1000-0569en_US
dc.identifier.urihttp://hdl.handle.net/10722/150988-
dc.description.abstractMetamorphic rocks in Mayuan Group in northern Fujian Province are outcropped in the form of Barrow belts from chlorite, biotite, garnet, staurolite, kyanite to sillimanite zones. The calculations - from geothermometer indicate that the metamorphic temperature of kyanite zone (470°C- 500°C) is obviously lower than that of garnet zone and staurolite zone. It means that kyanite zone was formed before garnet zone and staurolite zone. This is evidently inconsistent with the traditional theory of metamorphic belts. Chemical equilibrium calculations of fluid composition and thermodynamical analysis of metamorphic reactions show that the lower metamorphic temperature of kyanite zone is resulted not from the effect of metamorphic pressure and retrogressive metamorphism but from the buffering of temperature of dehydration metamorphic reaction forming kyanite by fluids with lower XH2o. The buffered temperature range is up to 100°C-200°C. The paper discusses the buffering mechanism and buffering intensity from thermodynamics and emphasizes the important role of metamorphic fluids in the studies of metamorphic facies and metamorphic belts.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.subjectBufferingen_US
dc.subjectMayuan Groupen_US
dc.subjectMetamorphic Fluidsen_US
dc.subjectMetamorphic Reaction Temperatureen_US
dc.titleBuffering of metamorphic reaction temperature by metamorphic fluids in mayuan group, northern fujian provinceen_US
dc.typeArticleen_US
dc.identifier.emailZhao, G:gzhao@hkucc.hku.hken_US
dc.identifier.authorityZhao, G=rp00842en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0030465647en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030465647&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume12en_US
dc.identifier.issue1en_US
dc.identifier.spageX5en_US
dc.identifier.epage69en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridZhao, G=7403296321en_US
dc.identifier.scopusauthoridSun, D=7403969024en_US
dc.identifier.scopusauthoridHe, T=7202512902en_US

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