File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: LA-ICP-MS U-Pb zircon ages of the Qianlishan Complex: Constrains on the evolution of the Khondalite Belt in the Western Block of the North China Craton

TitleLA-ICP-MS U-Pb zircon ages of the Qianlishan Complex: Constrains on the evolution of the Khondalite Belt in the Western Block of the North China Craton
Authors
KeywordsCollision
Khondalite Belt
Metamorphism
North China Craton
Paleoproterozoic
Zircon age
Issue Date2009
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamres
Citation
Precambrian Research, 2009, v. 174 n. 1-2, p. 78-94 How to Cite?
AbstractThe Qianlishan Complex is located in the westernmost part of the Khondalite Belt, a continent-continent collisional belt along which the Yinshan Block in the north and the Ordos Block in the south amalgamated to form the Western Block, which then collided with the Eastern Block along the Trans-North China Orogen to form the North China Craton. The complex is dominated by high-grade supracrustal rocks and minor S-type granites, of which the supracrustals consist of graphite-bearing sillimanite-garnet gneiss, garnet quartzite, felsic paragneiss, calc-silicate rock and marble. CL images reveal the existence of detrital and metamorphic zircons in major rocks of the Qianlishan Complex. In most cases, detrital zircons occur as either single grains with oscillatory zoning or oscillatory zoning cores, typical of igneous origin, which are surrounded by metamorphic overgrowth rims that are structureless, high bright and low in Th/U ratio. Detrital zircons from the Qianlishan Complex yield nearly concordant 207Pb/ 206Pb ages ranging from 2.3 to 2.0 Ga, suggesting that the protoliths of the high-grade supracrustal rocks in the Qianlishan Complex were deposited at some time after 2.0 Ga. Metamorphic zircons yield two age populations with one at ∼1.95 Ga and another at ∼1.92 Ga, of which the former is interpreted as the timing of the collision between the Yinshan and Ordos Blocks to form the Western Block, whereas the later is considered to be the age of subsequent post-orogenic extensional event. Minor S-type granites were emplaced at ∼1.88 Ga, as a result of partial melting of supracrustals at the stage of the exhumation of the Qianlishan Complex. These new zircon ages, combined with structural and metamorphic considerations, enable resolution of the tectonothermal events involving the collision between the Yinshan and Ordos Blocks to form the Western Block, followed by the post-collisional extension and subsequent exhumation of the Khondalite Belt. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/123918
ISSN
2015 Impact Factor: 4.037
2015 SCImago Journal Rankings: 3.214
ISI Accession Number ID
Funding AgencyGrant Number
Chinese National 973 Program2007CB411307
Chinese NSFC40730315
40872123
40872122
Hong Kong RGC7066/07P
7053/08P
Funding Information:

This research was funded by the Chinese National 973 Program (2007CB411307), Chinese NSFC Grants (40730315, 40872123 and 40872122), and Hong Kong RGC grants (7066/07P and 7053/08P). The final version of this paper benefited from constructive and critical comments from journal reviewers Michel Faure and Chris Clark.

References

 

DC FieldValueLanguage
dc.contributor.authorYin, Cen_HK
dc.contributor.authorZhao, Gen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorXia, Xen_HK
dc.contributor.authorWei, Cen_HK
dc.contributor.authorZhou, Xen_HK
dc.contributor.authorLeung, Wen_HK
dc.date.accessioned2010-10-07T04:54:17Z-
dc.date.available2010-10-07T04:54:17Z-
dc.date.issued2009en_HK
dc.identifier.citationPrecambrian Research, 2009, v. 174 n. 1-2, p. 78-94en_HK
dc.identifier.issn0301-9268en_HK
dc.identifier.urihttp://hdl.handle.net/10722/123918-
dc.description.abstractThe Qianlishan Complex is located in the westernmost part of the Khondalite Belt, a continent-continent collisional belt along which the Yinshan Block in the north and the Ordos Block in the south amalgamated to form the Western Block, which then collided with the Eastern Block along the Trans-North China Orogen to form the North China Craton. The complex is dominated by high-grade supracrustal rocks and minor S-type granites, of which the supracrustals consist of graphite-bearing sillimanite-garnet gneiss, garnet quartzite, felsic paragneiss, calc-silicate rock and marble. CL images reveal the existence of detrital and metamorphic zircons in major rocks of the Qianlishan Complex. In most cases, detrital zircons occur as either single grains with oscillatory zoning or oscillatory zoning cores, typical of igneous origin, which are surrounded by metamorphic overgrowth rims that are structureless, high bright and low in Th/U ratio. Detrital zircons from the Qianlishan Complex yield nearly concordant 207Pb/ 206Pb ages ranging from 2.3 to 2.0 Ga, suggesting that the protoliths of the high-grade supracrustal rocks in the Qianlishan Complex were deposited at some time after 2.0 Ga. Metamorphic zircons yield two age populations with one at ∼1.95 Ga and another at ∼1.92 Ga, of which the former is interpreted as the timing of the collision between the Yinshan and Ordos Blocks to form the Western Block, whereas the later is considered to be the age of subsequent post-orogenic extensional event. Minor S-type granites were emplaced at ∼1.88 Ga, as a result of partial melting of supracrustals at the stage of the exhumation of the Qianlishan Complex. These new zircon ages, combined with structural and metamorphic considerations, enable resolution of the tectonothermal events involving the collision between the Yinshan and Ordos Blocks to form the Western Block, followed by the post-collisional extension and subsequent exhumation of the Khondalite Belt. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamresen_HK
dc.relation.ispartofPrecambrian Researchen_HK
dc.rightsPrecambrian Research. Copyright © Elsevier BV.-
dc.subjectCollisionen_HK
dc.subjectKhondalite Belten_HK
dc.subjectMetamorphismen_HK
dc.subjectNorth China Cratonen_HK
dc.subjectPaleoproterozoicen_HK
dc.subjectZircon ageen_HK
dc.titleLA-ICP-MS U-Pb zircon ages of the Qianlishan Complex: Constrains on the evolution of the Khondalite Belt in the Western Block of the North China Cratonen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0301-9268&volume=174&issue=1-2&spage=78&epage=94&date=2009&atitle=LA-ICP-MS+U-Pb+zircon+ages+of+the+Qianlishan+Complex:+constrains+on+the+evolution+of+the+Khondalite+Belt+in+the+Western+Block+of+the+North+China+Craton-
dc.identifier.emailZhao, G: gzhao@hkucc.hku.hken_HK
dc.identifier.emailSun, M: minsun@hku.hken_HK
dc.identifier.emailXia, X: xpxia@hotmail.comen_HK
dc.identifier.authorityZhao, G=rp00842en_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.identifier.authorityXia, X=rp00815en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.precamres.2009.06.008en_HK
dc.identifier.scopuseid_2-s2.0-70349152180en_HK
dc.identifier.hkuros175427-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70349152180&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume174en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage78en_HK
dc.identifier.epage94en_HK
dc.identifier.isiWOS:000271362800005-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridYin, C=16053843700en_HK
dc.identifier.scopusauthoridZhao, G=7403296321en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridXia, X=35241486400en_HK
dc.identifier.scopusauthoridWei, C=7401657811en_HK
dc.identifier.scopusauthoridZhou, X=7410090761en_HK
dc.identifier.scopusauthoridLeung, W=49261027000en_HK
dc.identifier.citeulike5360131-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats