File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: U-Pb and Hf isotopic study of detrital zircons from the Lüliang khondalite, North China Craton, and their tectonic implications

TitleU-Pb and Hf isotopic study of detrital zircons from the Lüliang khondalite, North China Craton, and their tectonic implications
Authors
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
Citation
Geological Magazine, 2009, v. 146 n. 5, p. 701-716 How to Cite?
Abstract
Two 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.
Persistent Identifierhttp://hdl.handle.net/10722/151291
ISSN
2013 Impact Factor: 2.177
2013 SCImago Journal Rankings: 1.189
ISI Accession Number ID
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.

References

 

Author Affiliations
  1. The University of Hong Kong
  2. Institute of Geology and Geophysics Chinese Academy of Sciences
DC FieldValueLanguage
dc.contributor.authorXia, Xen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorZhao, Gen_HK
dc.contributor.authorWu, Fen_HK
dc.contributor.authorXie, Len_HK
dc.date.accessioned2012-06-26T06:20:11Z-
dc.date.available2012-06-26T06:20:11Z-
dc.date.issued2009en_HK
dc.identifier.citationGeological Magazine, 2009, v. 146 n. 5, p. 701-716en_HK
dc.identifier.issn0016-7568en_HK
dc.identifier.urihttp://hdl.handle.net/10722/151291-
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.en_HK
dc.languageengen_US
dc.publisherCambridge University Press. The Journal's web site is located at http://journals.cambridge.org/action/displayJournal?jid=GEOen_HK
dc.relation.ispartofGeological Magazineen_HK
dc.rightsGeological Magazine. Copyright © Cambridge University Press.-
dc.subjectDetrital zirconen_HK
dc.subjectHf isotopeen_HK
dc.subjectKhondalitesen_HK
dc.subjectNorth China Cratonen_HK
dc.subjectU-Pb ageen_HK
dc.titleU-Pb and Hf isotopic study of detrital zircons from the Lüliang khondalite, North China Craton, and their tectonic implicationsen_HK
dc.typeArticleen_HK
dc.identifier.emailXia, X: xpxia@hotmail.comen_HK
dc.identifier.emailSun, M: minsun@hku.hken_HK
dc.identifier.emailZhao, G: gzhao@hkucc.hku.hken_HK
dc.identifier.authorityXia, X=rp00815en_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.identifier.authorityZhao, G=rp00842en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1017/S0016756809006396en_HK
dc.identifier.scopuseid_2-s2.0-70349201282en_HK
dc.identifier.hkuros156917-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70349201282&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume146en_HK
dc.identifier.issue5en_HK
dc.identifier.spage701en_HK
dc.identifier.epage716en_HK
dc.identifier.isiWOS:000269272800006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridXia, X=35241486400en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridZhao, G=7403296321en_HK
dc.identifier.scopusauthoridWu, F=40561925600en_HK
dc.identifier.scopusauthoridXie, L=8523115400en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats