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Article: Petrology and metamorphism of khondalites from the Jining complex, North China craton

TitlePetrology and metamorphism of khondalites from the Jining complex, North China craton
Authors
KeywordsJining complex
khondalites
metamorphism
North China craton
P-T path
Issue Date2011
PublisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/TIGR
Citation
International Geology Review, 2011, v. 53 n. 2, p. 212-229 How to Cite?
AbstractThe basement of the North China craton (NCC) can be divided into eastern and western blocks separating the Trans-North China orogen on the basis of petrologic associations, structures, metamorphic processes, and isotopic ages. Aluminous gneiss khondalites occur in the western block, and record a clockwise metamorphic P-T history characterized by nearly isothermal decompression following peak metamorphism at ca. 1.3GPa and 825C. Four metamorphic stages are recognized based on mineral assemblages. The early prograde metamorphic assemblage contains Ky+Bt+Ms+Grt+Pl+Qtz. The peak metamorphic mineral assemblage is characterized by Grt+Sil+Bt+Kfs+Pl+Qtz and the formation of cordierite after garnet, leading to a retrograde assemblage of Grt+Sil+Crd+Pl+Kfs+Qtz. Garnet retrogrades to biotite and the formation of pervasive matrix muscovite define a final metamorphic stage, inferred at ca. <0.6GPa and 700°C. Quantified metamorphic stages and a related clockwise P-T path derived from pseudosection analysis in the KMASH system suggest collision of the north Yinshan block with the South Ordos block at 1.92Ga, before final suturing of the entire NCC basement. © 2011 Taylor & Francis.
Persistent Identifierhttp://hdl.handle.net/10722/139176
ISSN
2015 Impact Factor: 2.365
2015 SCImago Journal Rankings: 1.248
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China40730315
40872122
Hong Kong RGCHKU7066/07P
Funding Information:

We thank Prof. C.J. Wei for his help with the calculation of the pseudosection and appreciate Prof. Rodney Grapes for critical reviews of the manuscript. We also thank Mr G. Shu for the operation of the electronic microprobe and processing of the analytical results. This study was supported by the Key Project of National Natural Science Foundation of China 40730315, the National Natural Science Foundation of China 40872122, and Hong Kong RGC grant HKU7066/07P.

References

 

DC FieldValueLanguage
dc.contributor.authorWang, Fen_HK
dc.contributor.authorLi, XPen_HK
dc.contributor.authorChu, Hen_HK
dc.contributor.authorZhao, Gen_HK
dc.date.accessioned2011-09-23T05:46:22Z-
dc.date.available2011-09-23T05:46:22Z-
dc.date.issued2011en_HK
dc.identifier.citationInternational Geology Review, 2011, v. 53 n. 2, p. 212-229en_HK
dc.identifier.issn0020-6814en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139176-
dc.description.abstractThe basement of the North China craton (NCC) can be divided into eastern and western blocks separating the Trans-North China orogen on the basis of petrologic associations, structures, metamorphic processes, and isotopic ages. Aluminous gneiss khondalites occur in the western block, and record a clockwise metamorphic P-T history characterized by nearly isothermal decompression following peak metamorphism at ca. 1.3GPa and 825C. Four metamorphic stages are recognized based on mineral assemblages. The early prograde metamorphic assemblage contains Ky+Bt+Ms+Grt+Pl+Qtz. The peak metamorphic mineral assemblage is characterized by Grt+Sil+Bt+Kfs+Pl+Qtz and the formation of cordierite after garnet, leading to a retrograde assemblage of Grt+Sil+Crd+Pl+Kfs+Qtz. Garnet retrogrades to biotite and the formation of pervasive matrix muscovite define a final metamorphic stage, inferred at ca. <0.6GPa and 700°C. Quantified metamorphic stages and a related clockwise P-T path derived from pseudosection analysis in the KMASH system suggest collision of the north Yinshan block with the South Ordos block at 1.92Ga, before final suturing of the entire NCC basement. © 2011 Taylor & Francis.en_HK
dc.languageengen_US
dc.publisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/TIGRen_HK
dc.relation.ispartofInternational Geology Reviewen_HK
dc.subjectJining complexen_HK
dc.subjectkhondalitesen_HK
dc.subjectmetamorphismen_HK
dc.subjectNorth China cratonen_HK
dc.subjectP-T pathen_HK
dc.titlePetrology and metamorphism of khondalites from the Jining complex, North China cratonen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0020-6814&volume=53&issue=2&spage=212&epage=229&date=2011&atitle=Petrology+and+metamorphism+of+khondalites+from+the+Jining+complex,+North+China+craton-
dc.identifier.emailZhao, G:gzhao@hkucc.hku.hken_HK
dc.identifier.authorityZhao, G=rp00842en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1080/00206810903028144en_HK
dc.identifier.scopuseid_2-s2.0-77956920093en_HK
dc.identifier.hkuros193893en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77956920093&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume53en_HK
dc.identifier.issue2en_HK
dc.identifier.spage212en_HK
dc.identifier.epage229en_HK
dc.identifier.isiWOS:000281894500003-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWang, F=35451941500en_HK
dc.identifier.scopusauthoridLi, XP=35762863200en_HK
dc.identifier.scopusauthoridChu, H=13106258900en_HK
dc.identifier.scopusauthoridZhao, G=7403296321en_HK

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