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Article: A comment on "Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North China Orogen"

TitleA comment on "Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North China Orogen"
Authors
KeywordsArchean
Magmatic arc
Paleoproterozoic
Subduction
Trans-North China Orogen
Issue Date2010
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamres
Citation
Precambrian Research, 2010, v. 176 n. 1-4, p. 94-98 How to Cite?
AbstractIn a recent issue of Precambrian Research (vol. 170, pp. 73-87), Wang (2009) published a paper entitled 'Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North China Orogen, in which he proposes that (1) the formation of arc-related igneous rocks in the Hengshan and Wutai Complexes formed by northwest-directed subduction, not by (south)east-directed subduction; and (2) the Wutai granitoids were the products of an intra-oceanic island arc, not formed in a continent-derived arc. However, we consider both the structural and geochemical approaches Wang (2009) adopted to determine the polarity of the subduction and the tectonic setting of the Wutai granitoids are inappropriate or invalid. Firstly, all his structural observations used to determine the polarity of subduction are restricted to the Zhujiafang and Longquanguan ductitle shear zones, both of which developed at the late stage. It is unreliable to use kinematic indicators from these later structures to infer the polarity of the pre-collisional subduction. Secondly, Wang (2009) assumed that the initial positive ε(Nd) values (+0.5 to +4.5) of the Wutai granitoids indicate their generation directly from a mantle source, forming in an intra-oceanic arc. Such an interpretation is incorrect because the positive ε(Nd) values of the Wutai granitoids merely indicate that the igneous protoliths of these granitoids originated from a depleted mantle source, not the Wutai granitoids themselves. As the products of the earliest arc magmatism in the Wutai arc, the Wutai granitoids could not be generated directly from a mantle source but must have been derived by partial melting of juvenile crust. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/151297
ISSN
2015 Impact Factor: 4.037
2015 SCImago Journal Rankings: 3.214
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhao, Gen_HK
dc.contributor.authorLi, Sen_HK
dc.contributor.authorZhang, Jen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorXia, Xen_HK
dc.date.accessioned2012-06-26T06:20:15Z-
dc.date.available2012-06-26T06:20:15Z-
dc.date.issued2010en_HK
dc.identifier.citationPrecambrian Research, 2010, v. 176 n. 1-4, p. 94-98en_HK
dc.identifier.issn0301-9268en_HK
dc.identifier.urihttp://hdl.handle.net/10722/151297-
dc.description.abstractIn a recent issue of Precambrian Research (vol. 170, pp. 73-87), Wang (2009) published a paper entitled 'Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North China Orogen, in which he proposes that (1) the formation of arc-related igneous rocks in the Hengshan and Wutai Complexes formed by northwest-directed subduction, not by (south)east-directed subduction; and (2) the Wutai granitoids were the products of an intra-oceanic island arc, not formed in a continent-derived arc. However, we consider both the structural and geochemical approaches Wang (2009) adopted to determine the polarity of the subduction and the tectonic setting of the Wutai granitoids are inappropriate or invalid. Firstly, all his structural observations used to determine the polarity of subduction are restricted to the Zhujiafang and Longquanguan ductitle shear zones, both of which developed at the late stage. It is unreliable to use kinematic indicators from these later structures to infer the polarity of the pre-collisional subduction. Secondly, Wang (2009) assumed that the initial positive ε(Nd) values (+0.5 to +4.5) of the Wutai granitoids indicate their generation directly from a mantle source, forming in an intra-oceanic arc. Such an interpretation is incorrect because the positive ε(Nd) values of the Wutai granitoids merely indicate that the igneous protoliths of these granitoids originated from a depleted mantle source, not the Wutai granitoids themselves. As the products of the earliest arc magmatism in the Wutai arc, the Wutai granitoids could not be generated directly from a mantle source but must have been derived by partial melting of juvenile crust. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamresen_HK
dc.relation.ispartofPrecambrian Researchen_HK
dc.subjectArcheanen_HK
dc.subjectMagmatic arcen_HK
dc.subjectPaleoproterozoicen_HK
dc.subjectSubductionen_HK
dc.subjectTrans-North China Orogenen_HK
dc.titleA comment on "Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North China Orogen"en_HK
dc.typeArticleen_HK
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_fulltexten_US
dc.identifier.doi10.1016/j.precamres.2009.10.002en_HK
dc.identifier.scopuseid_2-s2.0-71649101071en_HK
dc.identifier.hkuros175404-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-71649101071&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume176en_HK
dc.identifier.issue1-4en_HK
dc.identifier.spage94en_HK
dc.identifier.epage98en_HK
dc.identifier.isiWOS:000273933100007-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridZhao, G=7403296321en_HK
dc.identifier.scopusauthoridLi, S=35248444400en_HK
dc.identifier.scopusauthoridZhang, J=49061670600en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridXia, X=35241486400en_HK
dc.identifier.citeulike6004097-

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