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Article: U-Pb and Hf isotopic study of detrital zircons from the Lüliang khondalite, North China Craton, and their tectonic implications
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TitleU-Pb and Hf isotopic study of detrital zircons from the Lüliang khondalite, North China Craton, and their tectonic implications
 
AuthorsXia, X1
Sun, M1
Zhao, G1
Wu, F2
Xie, L2
 
KeywordsDetrital zircon
Hf isotope
Khondalites
North China Craton
U-Pb age
 
Issue Date2009
 
PublisherCambridge University Press. The Journal's web site is located at http://journals.cambridge.org/action/displayJournal?jid=GEO
 
CitationGeological Magazine, 2009, v. 146 n. 5, p. 701-716 [How to Cite?]
DOI: http://dx.doi.org/10.1017/S0016756809006396
 
AbstractTwo types of metasedimentary rocks occur in the Trans-North China Orogen of the North China Craton. One type consists of highly metamorphosed supracrustal rocks with protoliths of mature cratonic shale, called khondalites, as found in the Lüliang Complex; rocks of the other type are also highly metamorphosed but less mature, as represented by the Wanzi supracrustal assemblage in the Fuping Complex. U - Pb isotopic data for detrital zircons from khondalites show a provenance dominated by 1.9-2.1 Ga Palaeoproterozoic rocks. These detrital zircons display a wide range of ε Hf values from -16.0 to +9.2 and give Hf isotopic model ages mostly around 2.3 Ga. The high positive ε Hf values approach those for the depleted mantle at 2.1 Ga, highlighting a juvenile crustal growth event in Palaeoproterozoic times. Hf isotopic data also imply that c. 2.6 Ga old crustal material was involved in the Palaeoproterozoic magmatic event. These data are similar to those for the khondalitic rocks from the interior of the Western Block of the North China Craton, suggesting a common provenance. In contrast, other metasedimentary rocks in the Trans-North China Orogen, such as the Wanzi supracrustal assemblage in the Fuping Complex, have a source region with both Palaeoproterozoic and Archaean rocks. Their detrital zircon Hf isotopic data indicate reworking of old crustal material and a lack of significant juvenile Palaeoproterozoic magmatic input. These rocks are similar to the coevally deposited meta-sedimentary rocks in the interior of the Eastern Block. We propose that the Lüliang khondalites were deposited on the eastern margin of the Western Block in a passive continental margin environment and were thrust eastward later during collision with the Eastern Block. Other metasedimentary rocks in the Trans-North China Orogen were deposited on the western margin of the Eastern Block in a continental arc environment. Our data support the eastward subduction model for the Palaeoproterozoic tectonic evolution of the North China Craton. © 2009 Copyright © Cambridge University Press 2009.
 
ISSN0016-7568
2012 Impact Factor: 2.27
2012 SCImago Journal Rankings: 1.186
 
DOIhttp://dx.doi.org/10.1017/S0016756809006396
 
ISI Accession Number IDWOS:000269272800006
Funding AgencyGrant Number
Chinese National 973 Program2007CB411307
Small Project Funding from the University of Hong Kong200607176156
Chinese NSFC40730315
Hong Kong RGC7048/03P
7055/05P
7066/07P
Germany/Hong Kong Joint Research Scheme sponsored by Hong Kong RGC
German Academic Exchange Service of GermanyG-HK030/07
CAS/SAFEA International Partnership Program for Creative Research Teams
Funding Information:

This study was supported by research grants from the Chinese National 973 Program (2007CB411307), the Small Project Funding from the University of Hong Kong (200607176156), Chinese NSFC Grant (40730315), Hong Kong RGC (7048/03P, 7055/05P, 7066/07P), the Germany/Hong Kong Joint Research Scheme sponsored by Hong Kong RGC and German Academic Exchange Service of Germany (G-HK030/07), and the CAS/SAFEA International Partnership Program for Creative Research Teams. Simon A. Wilde read an earlier version and provided constructive comments. We thank Yueheng Yang and Yaribing Zhang for laboratory assistance. A postgradate studentship and a post-doctoral fellowship from HKU to X. P. Xia are greatly acknowledged.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorXia, X
 
dc.contributor.authorSun, M
 
dc.contributor.authorZhao, G
 
dc.contributor.authorWu, F
 
dc.contributor.authorXie, L
 
dc.date.accessioned2012-06-26T06:20:11Z
 
dc.date.available2012-06-26T06:20:11Z
 
dc.date.issued2009
 
dc.description.abstractTwo types of metasedimentary rocks occur in the Trans-North China Orogen of the North China Craton. One type consists of highly metamorphosed supracrustal rocks with protoliths of mature cratonic shale, called khondalites, as found in the Lüliang Complex; rocks of the other type are also highly metamorphosed but less mature, as represented by the Wanzi supracrustal assemblage in the Fuping Complex. U - Pb isotopic data for detrital zircons from khondalites show a provenance dominated by 1.9-2.1 Ga Palaeoproterozoic rocks. These detrital zircons display a wide range of ε Hf values from -16.0 to +9.2 and give Hf isotopic model ages mostly around 2.3 Ga. The high positive ε Hf values approach those for the depleted mantle at 2.1 Ga, highlighting a juvenile crustal growth event in Palaeoproterozoic times. Hf isotopic data also imply that c. 2.6 Ga old crustal material was involved in the Palaeoproterozoic magmatic event. These data are similar to those for the khondalitic rocks from the interior of the Western Block of the North China Craton, suggesting a common provenance. In contrast, other metasedimentary rocks in the Trans-North China Orogen, such as the Wanzi supracrustal assemblage in the Fuping Complex, have a source region with both Palaeoproterozoic and Archaean rocks. Their detrital zircon Hf isotopic data indicate reworking of old crustal material and a lack of significant juvenile Palaeoproterozoic magmatic input. These rocks are similar to the coevally deposited meta-sedimentary rocks in the interior of the Eastern Block. We propose that the Lüliang khondalites were deposited on the eastern margin of the Western Block in a passive continental margin environment and were thrust eastward later during collision with the Eastern Block. Other metasedimentary rocks in the Trans-North China Orogen were deposited on the western margin of the Eastern Block in a continental arc environment. Our data support the eastward subduction model for the Palaeoproterozoic tectonic evolution of the North China Craton. © 2009 Copyright © Cambridge University Press 2009.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationGeological Magazine, 2009, v. 146 n. 5, p. 701-716 [How to Cite?]
DOI: http://dx.doi.org/10.1017/S0016756809006396
 
dc.identifier.doihttp://dx.doi.org/10.1017/S0016756809006396
 
dc.identifier.epage716
 
dc.identifier.hkuros156917
 
dc.identifier.isiWOS:000269272800006
Funding AgencyGrant Number
Chinese National 973 Program2007CB411307
Small Project Funding from the University of Hong Kong200607176156
Chinese NSFC40730315
Hong Kong RGC7048/03P
7055/05P
7066/07P
Germany/Hong Kong Joint Research Scheme sponsored by Hong Kong RGC
German Academic Exchange Service of GermanyG-HK030/07
CAS/SAFEA International Partnership Program for Creative Research Teams
Funding Information:

This study was supported by research grants from the Chinese National 973 Program (2007CB411307), the Small Project Funding from the University of Hong Kong (200607176156), Chinese NSFC Grant (40730315), Hong Kong RGC (7048/03P, 7055/05P, 7066/07P), the Germany/Hong Kong Joint Research Scheme sponsored by Hong Kong RGC and German Academic Exchange Service of Germany (G-HK030/07), and the CAS/SAFEA International Partnership Program for Creative Research Teams. Simon A. Wilde read an earlier version and provided constructive comments. We thank Yueheng Yang and Yaribing Zhang for laboratory assistance. A postgradate studentship and a post-doctoral fellowship from HKU to X. P. Xia are greatly acknowledged.

 
dc.identifier.issn0016-7568
2012 Impact Factor: 2.27
2012 SCImago Journal Rankings: 1.186
 
dc.identifier.issue5
 
dc.identifier.scopuseid_2-s2.0-70349201282
 
dc.identifier.spage701
 
dc.identifier.urihttp://hdl.handle.net/10722/151291
 
dc.identifier.volume146
 
dc.languageeng
 
dc.publisherCambridge University Press. The Journal's web site is located at http://journals.cambridge.org/action/displayJournal?jid=GEO
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofGeological Magazine
 
dc.relation.referencesReferences in Scopus
 
dc.rightsGeological Magazine. Copyright © Cambridge University Press.
 
dc.subjectDetrital zircon
 
dc.subjectHf isotope
 
dc.subjectKhondalites
 
dc.subjectNorth China Craton
 
dc.subjectU-Pb age
 
dc.titleU-Pb and Hf isotopic study of detrital zircons from the Lüliang khondalite, North China Craton, and their tectonic implications
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong
  2. Institute of Geology and Geophysics Chinese Academy of Sciences