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Article: Late archaean to palaeoproterozoic evolution of the Trans-North China Orogen: Insights from synthesis of existing data from the Hengshan-Wutai-Fuping belt

TitleLate archaean to palaeoproterozoic evolution of the Trans-North China Orogen: Insights from synthesis of existing data from the Hengshan-Wutai-Fuping belt
Authors
Issue Date2004
PublisherGeological Society Publishing House. The Journal's web site is located at http://www.geolsoc.org.uk/sp
Citation
Geological Society Special Publication, 2004, v. 226, p. 27-55 How to Cite?
AbstractThe Hengshan- Wutai- Fuping mountain belt constitutes the middle segment of the Trans-North China Orogen, which separates the North China Craton into the Eastern and Western Blocks. The belt consists of the high-grade Hengshan and Fuping complexes, and the intervening low- to medium-grade Wutai Complex. Previous tectonic models assumed that the high-grade complexes were an older basement (Archaean to Palaeoproterozoic) to the low-grade Wutai Complex. However, new geochronological data show that the emplacement of granitoid rocks and eruption of volcanic rocks in the Wutai Complex occurred essentially coeval with or slightly earlier than intrusion of the tonalitic-trondhjemitic-granodioritic (TTG) suites in the Hengshan and Fuping complexes. New isotopic data also reveal the widespread presence of Palaeoproterozoic granitoid rocks in these complexes. Structural and metamorphic data demonstrate similar tectonothermal histories for the three complexes, which are characterized by peak medium- to high-pressure metamorphism accompanied by the development of thrusting, isoclinal folding (F 2) and penetrative foliations, followed by near-isothermal decompression and cooling and retrogression associated with the formation of large-scale ductile shear zones and asymmetrical folds (F 3) with nearly vertical axial planes. These geochronological, structural and metamorphic data suggest that the tectonic evolution of the Hengshan- Wutai- Fuping mountain belt may not be related to local interaction of the three complexes, as suggested in earlier models, either through closure of a Wutai rift or collision between a Wutai arc and the Hengshan and Fuping micro-continental blocks. Instead, they may represent elements of a single Late Archaean to Early Palaeoproterozoic magmatic arc that was subsequently incorporated into the Trans-North China Orogen along which the Eastern and Western blocks amalgamated to form the North China Craton at around 1.85 Ga. © The Geological Society of London 2004.
Persistent Identifierhttp://hdl.handle.net/10722/151264
ISSN
2015 SCImago Journal Rankings: 0.747
References

 

DC FieldValueLanguage
dc.contributor.authorZhao, Gen_US
dc.contributor.authorSun, Men_US
dc.contributor.authorWilde, SAen_US
dc.contributor.authorGuo, Jen_US
dc.date.accessioned2012-06-26T06:19:33Z-
dc.date.available2012-06-26T06:19:33Z-
dc.date.issued2004en_US
dc.identifier.citationGeological Society Special Publication, 2004, v. 226, p. 27-55en_US
dc.identifier.issn0305-8719en_US
dc.identifier.urihttp://hdl.handle.net/10722/151264-
dc.description.abstractThe Hengshan- Wutai- Fuping mountain belt constitutes the middle segment of the Trans-North China Orogen, which separates the North China Craton into the Eastern and Western Blocks. The belt consists of the high-grade Hengshan and Fuping complexes, and the intervening low- to medium-grade Wutai Complex. Previous tectonic models assumed that the high-grade complexes were an older basement (Archaean to Palaeoproterozoic) to the low-grade Wutai Complex. However, new geochronological data show that the emplacement of granitoid rocks and eruption of volcanic rocks in the Wutai Complex occurred essentially coeval with or slightly earlier than intrusion of the tonalitic-trondhjemitic-granodioritic (TTG) suites in the Hengshan and Fuping complexes. New isotopic data also reveal the widespread presence of Palaeoproterozoic granitoid rocks in these complexes. Structural and metamorphic data demonstrate similar tectonothermal histories for the three complexes, which are characterized by peak medium- to high-pressure metamorphism accompanied by the development of thrusting, isoclinal folding (F 2) and penetrative foliations, followed by near-isothermal decompression and cooling and retrogression associated with the formation of large-scale ductile shear zones and asymmetrical folds (F 3) with nearly vertical axial planes. These geochronological, structural and metamorphic data suggest that the tectonic evolution of the Hengshan- Wutai- Fuping mountain belt may not be related to local interaction of the three complexes, as suggested in earlier models, either through closure of a Wutai rift or collision between a Wutai arc and the Hengshan and Fuping micro-continental blocks. Instead, they may represent elements of a single Late Archaean to Early Palaeoproterozoic magmatic arc that was subsequently incorporated into the Trans-North China Orogen along which the Eastern and Western blocks amalgamated to form the North China Craton at around 1.85 Ga. © The Geological Society of London 2004.en_US
dc.languageengen_US
dc.publisherGeological Society Publishing House. The Journal's web site is located at http://www.geolsoc.org.uk/spen_US
dc.relation.ispartofGeological Society Special Publicationen_US
dc.titleLate archaean to palaeoproterozoic evolution of the Trans-North China Orogen: Insights from synthesis of existing data from the Hengshan-Wutai-Fuping belten_US
dc.typeArticleen_US
dc.identifier.emailZhao, G: gzhao@hkucc.hku.hken_US
dc.identifier.emailSun, M: minsun@hku.hken_US
dc.identifier.authorityZhao, G=rp00842en_US
dc.identifier.authoritySun, M=rp00780en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1144/GSL.SP.2004.226.01.03en_US
dc.identifier.scopuseid_2-s2.0-5444276792en_US
dc.identifier.hkuros144548-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-5444276792&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume226en_US
dc.identifier.spage27en_US
dc.identifier.epage55en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridZhao, G=7403296321en_US
dc.identifier.scopusauthoridSun, M=25932315800en_US
dc.identifier.scopusauthoridWilde, SA=35254758600en_US
dc.identifier.scopusauthoridGuo, J=35368525900en_US
dc.customcontrol.immutablesml 130311-

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