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Article: U-Pb and Hf isotopic study of detrital zircons from the Yejishan Group of the Lüliang Complex: Constraints on the timing of collision between the Eastern and Western Blocks, North China Craton

TitleU-Pb and Hf isotopic study of detrital zircons from the Yejishan Group of the Lüliang Complex: Constraints on the timing of collision between the Eastern and Western Blocks, North China Craton
Authors
KeywordsDetrital zircon
Foreland basin
Lüliang Complex
North China Craton
Paleoproterozoic
Trans-North China Orogen
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/sedgeo
Citation
Sedimentary Geology, 2011, v. 236 n. 1-2, p. 129-140 How to Cite?
AbstractThe Trans-North China Orogen is a recently recognized continent-continent collisional belt along which the discrete Eastern and Western Blocks amalgamated to form the coherent basement of the North China Craton. However, there is a hot debate on the timing of the collision between the two blocks, with one school of thought arguing the collision occurred at 2.5Ga, whereas others believe it took place at ~1.85Ga. U-Pb ages and Hf isotopic data of detrital zircons from foreland basins in the Trans-North China Orogen can provide rigorous constraints on this controversial issue. One of such foreland basins is represented by the Yejishan Group in the Lüliang Complex in the middle sector of the western margin of the Trans-North China Orogen. The group consists of conglomerates, quartz wackes, sandstones and minor limestones, most of which contain large amounts of detrital zircons. CL images reveal that nearly all detrital zircons from the Yejishan Group possess oscillatory zoning, with Th/U ratios of 0.2-2.34, typical of an igneous origin. The 207Pb/ 206Pb ages of detrital zircons range between 3.24 and 1.81Ga, with most having Paleoproterozoic ages, of which the youngest group ages are around 1.87-1.81Ga. This indicates that the foreland basin in which the Yejishan Group was deposited must have formed not earlier than 1.87-1.81Ga, thus supporting the collision between the Eastern and Western Blocks at ~1.85Ga, not at ~2.5Ga. © 2011 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/139166
ISSN
2014 Impact Factor: 2.665
2013 SCImago Journal Rankings: 1.156
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong RGC GRF7063/06P
7066/07P
7053/08P
Funding Information:

This research was financially supported by Hong Kong RGC GRF grants (7063/06P, 7066/07P and 7053/08P). We thank Liewen Xie, Yueheng Yang, and Yanbing Zhang for their laboratory assistance. A HKU postgraduate studentship to Chaohui Liu is greatly acknowledged.

References

 

DC FieldValueLanguage
dc.contributor.authorLiu, Cen_HK
dc.contributor.authorZhao, Gen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorWu, Fen_HK
dc.contributor.authorYang, Jen_HK
dc.contributor.authorYin, Cen_HK
dc.contributor.authorLeung, WHen_HK
dc.date.accessioned2011-09-23T05:46:16Z-
dc.date.available2011-09-23T05:46:16Z-
dc.date.issued2011en_HK
dc.identifier.citationSedimentary Geology, 2011, v. 236 n. 1-2, p. 129-140en_HK
dc.identifier.issn0037-0738en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139166-
dc.description.abstractThe Trans-North China Orogen is a recently recognized continent-continent collisional belt along which the discrete Eastern and Western Blocks amalgamated to form the coherent basement of the North China Craton. However, there is a hot debate on the timing of the collision between the two blocks, with one school of thought arguing the collision occurred at 2.5Ga, whereas others believe it took place at ~1.85Ga. U-Pb ages and Hf isotopic data of detrital zircons from foreland basins in the Trans-North China Orogen can provide rigorous constraints on this controversial issue. One of such foreland basins is represented by the Yejishan Group in the Lüliang Complex in the middle sector of the western margin of the Trans-North China Orogen. The group consists of conglomerates, quartz wackes, sandstones and minor limestones, most of which contain large amounts of detrital zircons. CL images reveal that nearly all detrital zircons from the Yejishan Group possess oscillatory zoning, with Th/U ratios of 0.2-2.34, typical of an igneous origin. The 207Pb/ 206Pb ages of detrital zircons range between 3.24 and 1.81Ga, with most having Paleoproterozoic ages, of which the youngest group ages are around 1.87-1.81Ga. This indicates that the foreland basin in which the Yejishan Group was deposited must have formed not earlier than 1.87-1.81Ga, thus supporting the collision between the Eastern and Western Blocks at ~1.85Ga, not at ~2.5Ga. © 2011 Elsevier B.V.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/sedgeoen_HK
dc.relation.ispartofSedimentary Geologyen_HK
dc.subjectDetrital zirconen_HK
dc.subjectForeland basinen_HK
dc.subjectLüliang Complexen_HK
dc.subjectNorth China Cratonen_HK
dc.subjectPaleoproterozoicen_HK
dc.subjectTrans-North China Orogenen_HK
dc.titleU-Pb and Hf isotopic study of detrital zircons from the Yejishan Group of the Lüliang Complex: Constraints on the timing of collision between the Eastern and Western Blocks, North China Cratonen_HK
dc.typeArticleen_HK
dc.identifier.emailZhao, G:gzhao@hkucc.hku.hken_HK
dc.identifier.emailSun, M:minsun@hku.hken_HK
dc.identifier.authorityZhao, G=rp00842en_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.sedgeo.2011.01.001en_HK
dc.identifier.scopuseid_2-s2.0-79952581622en_HK
dc.identifier.hkuros193873en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79952581622&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume236en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage129en_HK
dc.identifier.epage140en_HK
dc.identifier.isiWOS:000289387800009-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLiu, C=36955394800en_HK
dc.identifier.scopusauthoridZhao, G=7403296321en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridWu, F=40561925600en_HK
dc.identifier.scopusauthoridYang, J=35787492800en_HK
dc.identifier.scopusauthoridYin, C=16053843700en_HK
dc.identifier.scopusauthoridLeung, WH=49261027000en_HK
dc.identifier.citeulike8624213-

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