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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"
Title | A comment on "Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North China Orogen" |
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Authors | |
Keywords | Archean Magmatic arc Paleoproterozoic Subduction Trans-North China Orogen |
Issue Date | 2010 |
Publisher | Elsevier 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? |
Abstract | In 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 Identifier | http://hdl.handle.net/10722/151297 |
ISSN | 2023 Impact Factor: 3.2 2023 SCImago Journal Rankings: 1.589 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhao, G | en_HK |
dc.contributor.author | Li, S | en_HK |
dc.contributor.author | Zhang, J | en_HK |
dc.contributor.author | Sun, M | en_HK |
dc.contributor.author | Xia, X | en_HK |
dc.date.accessioned | 2012-06-26T06:20:15Z | - |
dc.date.available | 2012-06-26T06:20:15Z | - |
dc.date.issued | 2010 | en_HK |
dc.identifier.citation | Precambrian Research, 2010, v. 176 n. 1-4, p. 94-98 | en_HK |
dc.identifier.issn | 0301-9268 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/151297 | - |
dc.description.abstract | In 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.language | eng | en_US |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamres | en_HK |
dc.relation.ispartof | Precambrian Research | en_HK |
dc.subject | Archean | en_HK |
dc.subject | Magmatic arc | en_HK |
dc.subject | Paleoproterozoic | en_HK |
dc.subject | Subduction | en_HK |
dc.subject | Trans-North China Orogen | en_HK |
dc.title | A comment on "Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North China Orogen" | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Zhao, G: gzhao@hkucc.hku.hk | en_HK |
dc.identifier.email | Sun, M: minsun@hku.hk | en_HK |
dc.identifier.email | Xia, X: xpxia@hotmail.com | en_HK |
dc.identifier.authority | Zhao, G=rp00842 | en_HK |
dc.identifier.authority | Sun, M=rp00780 | en_HK |
dc.identifier.authority | Xia, X=rp00815 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/j.precamres.2009.10.002 | en_HK |
dc.identifier.scopus | eid_2-s2.0-71649101071 | en_HK |
dc.identifier.hkuros | 175404 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-71649101071&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 176 | en_HK |
dc.identifier.issue | 1-4 | en_HK |
dc.identifier.spage | 94 | en_HK |
dc.identifier.epage | 98 | en_HK |
dc.identifier.isi | WOS:000273933100007 | - |
dc.publisher.place | Netherlands | en_HK |
dc.identifier.scopusauthorid | Zhao, G=7403296321 | en_HK |
dc.identifier.scopusauthorid | Li, S=35248444400 | en_HK |
dc.identifier.scopusauthorid | Zhang, J=49061670600 | en_HK |
dc.identifier.scopusauthorid | Sun, M=25932315800 | en_HK |
dc.identifier.scopusauthorid | Xia, X=35241486400 | en_HK |
dc.identifier.citeulike | 6004097 | - |
dc.identifier.issnl | 0301-9268 | - |