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Article: Zircon geochronology and metamorphic evolution of mafic dykes in the Hengshan complex of northern China: Evidence for late Palaeoproterozoic extension and subsequent high-pressure metamorphism in the North China craton

TitleZircon geochronology and metamorphic evolution of mafic dykes in the Hengshan complex of northern China: Evidence for late Palaeoproterozoic extension and subsequent high-pressure metamorphism in the North China craton
Authors
KeywordsHengshan
Mafic dyke
Metamorphism
North China Craton
Palaeoproterozoic
Zircon geochronology
Issue Date2006
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamres
Citation
Precambrian Research, 2006, v. 146 n. 1-2, p. 45-67 How to Cite?
AbstractMagmatic and metamorphic zircons have been dated from ductilely deformed gabbroic dykes defining a dyke swarm and signifying crustal extension in the northern part of the Hengshan Complex of the North China Craton. These dykes now occur as boudins and deformed sheets within migmatitic tonalitic, trondhjemitic, granodioritic and granitic gneisses and are conspicuous due to relics of high-pressure granulite or even former eclogite facies garnet + pyroxene-bearing assemblages. SHRIMP ages for magmatic zircons from two dykes reflect the time of dyke emplacement at ∼1915 Ma, whereas metamorphic zircons dated by both SHRIMP and evaporation techniques are consistently in the range 1848-1888 Ma. The youngest granitoid gneiss yet dated in the Hengshan has an emplacement age of 1872 ± 17 Ma. These results complement recent geochronological studies from the neighbouring Wutai and Fuping Complexes, to the SE of the Hengshan, showing that a crustal extension event occurred in the late Palaeoproterozoic. This preceded a major high-pressure collision-type metamorphic event in the central part of the North China Craton that occurred in the Palaeoproterozoic and not in the late Archaean as previously thought. Our data support recent suggestions that the North China Craton experienced a major, craton-wide orogenic event in the late Palaeoproterozoic after which it became cratonized and acted as a stable block. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/72532
ISSN
2015 Impact Factor: 4.037
2015 SCImago Journal Rankings: 3.214
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKröner, Aen_HK
dc.contributor.authorWilde, SAen_HK
dc.contributor.authorZhao, GCen_HK
dc.contributor.authorO'Brien, PJen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorLiu, DYen_HK
dc.contributor.authorWan, YSen_HK
dc.contributor.authorLiu, SWen_HK
dc.contributor.authorGuo, JHen_HK
dc.date.accessioned2010-09-06T06:42:43Z-
dc.date.available2010-09-06T06:42:43Z-
dc.date.issued2006en_HK
dc.identifier.citationPrecambrian Research, 2006, v. 146 n. 1-2, p. 45-67en_HK
dc.identifier.issn0301-9268en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72532-
dc.description.abstractMagmatic and metamorphic zircons have been dated from ductilely deformed gabbroic dykes defining a dyke swarm and signifying crustal extension in the northern part of the Hengshan Complex of the North China Craton. These dykes now occur as boudins and deformed sheets within migmatitic tonalitic, trondhjemitic, granodioritic and granitic gneisses and are conspicuous due to relics of high-pressure granulite or even former eclogite facies garnet + pyroxene-bearing assemblages. SHRIMP ages for magmatic zircons from two dykes reflect the time of dyke emplacement at ∼1915 Ma, whereas metamorphic zircons dated by both SHRIMP and evaporation techniques are consistently in the range 1848-1888 Ma. The youngest granitoid gneiss yet dated in the Hengshan has an emplacement age of 1872 ± 17 Ma. These results complement recent geochronological studies from the neighbouring Wutai and Fuping Complexes, to the SE of the Hengshan, showing that a crustal extension event occurred in the late Palaeoproterozoic. This preceded a major high-pressure collision-type metamorphic event in the central part of the North China Craton that occurred in the Palaeoproterozoic and not in the late Archaean as previously thought. Our data support recent suggestions that the North China Craton experienced a major, craton-wide orogenic event in the late Palaeoproterozoic after which it became cratonized and acted as a stable block. © 2006 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamresen_HK
dc.relation.ispartofPrecambrian Researchen_HK
dc.subjectHengshanen_HK
dc.subjectMafic dykeen_HK
dc.subjectMetamorphismen_HK
dc.subjectNorth China Cratonen_HK
dc.subjectPalaeoproterozoicen_HK
dc.subjectZircon geochronologyen_HK
dc.titleZircon geochronology and metamorphic evolution of mafic dykes in the Hengshan complex of northern China: Evidence for late Palaeoproterozoic extension and subsequent high-pressure metamorphism in the North China cratonen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0301-9268&volume=146&issue=1-2&spage=45&epage=67&date=2006&atitle=Zircon+geochronology+and+metamorphic+evolution+of+mafic+dykes+in+the+Hengshan+Complex+of+northern+China:+Evidence+for+late+Palaeoproterozoic+extension+and+subsequent+high-pressure+metamorphism+in+the+North+China+Cratonen_HK
dc.identifier.emailZhao, GC:gzhao@hkucc.hku.hken_HK
dc.identifier.emailSun, M:minsun@hku.hken_HK
dc.identifier.authorityZhao, GC=rp00842en_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.precamres.2006.01.008en_HK
dc.identifier.scopuseid_2-s2.0-33645163459en_HK
dc.identifier.hkuros122068en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33645163459&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume146en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage45en_HK
dc.identifier.epage67en_HK
dc.identifier.isiWOS:000236777500004-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridKröner, A=7006453132en_HK
dc.identifier.scopusauthoridWilde, SA=35254758600en_HK
dc.identifier.scopusauthoridZhao, GC=7403296321en_HK
dc.identifier.scopusauthoridO'Brien, PJ=7401672568en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridLiu, DY=36078313400en_HK
dc.identifier.scopusauthoridWan, YS=7402417226en_HK
dc.identifier.scopusauthoridLiu, SW=49161257300en_HK
dc.identifier.scopusauthoridGuo, JH=36623632200en_HK

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