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Article: Metamorphism of basement rocks in the Central Zone of the North China Craton: Implications for paleoproterozoic tectonic evolution

TitleMetamorphism of basement rocks in the Central Zone of the North China Craton: Implications for paleoproterozoic tectonic evolution
Authors
KeywordsContinental Collision
Metamorphism
North China Craton
P-T Paths
Tectonothermal Evolution
Issue Date2000
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamres
Citation
Precambrian Research, 2000, v. 103 n. 1-2, p. 55-88 How to Cite?
AbstractLithological, structural, metamorphic and geochronological data for the North China Craton enable its division into the Western and Eastern Blocks of Archean to Paleoproterozoic age separated by a north-south trending Paleoproterozoic orogenic belt: the Central Zone. The Central Zone is divisible into a series of low- to medium-grade granite-greenstone belts and high-grade metamorphic terrains containing reworked Archean material and late Archean to Paleoproterozoic juvenile igneous and sedimentary rocks which developed in intra-continental magmatic arc and intra-arc basin environments bordering the western margin of the Eastern Block. The basement rocks from the Central Zone, regardless of their protolith age, composition and metamorphic grade, record a metamorphic history characterized by nearly isothermal decompression (M2) and then retrogressive cooling (M3) following peak metamorphism (M1). The decompression textures are represented by worm-like hypersthene + plagioclase symplectites or clinopyroxene + orthopyroxene + plagioclase coronas in mafic granulites, hornblende/cummingtonite + plagioclase symplectites in amphibolites, and cordierite coronas and cordierite + orthopyroxene or cordierite + spinel symplectites in pelitic rocks. The cooling textures are shown by hornblende + plagioclase symplectites in mafic granulites, chlorite + epidote + mica retrogressive rims around garnet or hornblende grains in amphibolites, and biotite + K-feldspar ± muscovite ± magnetite replacing garnet, cordierite and sillimanite in pelitic gneisses. These textural relations and their P-T estimates define near-isothermal decompressional clockwise P-T paths, which, in combination with lithological, structural and geochronological constraints, are in accord with collision between the Eastern and Western Blocks of the North China Craton at ~1.8 Ga. (C) Elsevier Science B.V.
Persistent Identifierhttp://hdl.handle.net/10722/151028
ISSN
2015 Impact Factor: 4.037
2015 SCImago Journal Rankings: 3.214
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhao, Gen_US
dc.contributor.authorCawood, PAen_US
dc.contributor.authorWilde, SAen_US
dc.contributor.authorSun, Men_US
dc.contributor.authorLu, Len_US
dc.date.accessioned2012-06-26T06:16:09Z-
dc.date.available2012-06-26T06:16:09Z-
dc.date.issued2000en_US
dc.identifier.citationPrecambrian Research, 2000, v. 103 n. 1-2, p. 55-88en_US
dc.identifier.issn0301-9268en_US
dc.identifier.urihttp://hdl.handle.net/10722/151028-
dc.description.abstractLithological, structural, metamorphic and geochronological data for the North China Craton enable its division into the Western and Eastern Blocks of Archean to Paleoproterozoic age separated by a north-south trending Paleoproterozoic orogenic belt: the Central Zone. The Central Zone is divisible into a series of low- to medium-grade granite-greenstone belts and high-grade metamorphic terrains containing reworked Archean material and late Archean to Paleoproterozoic juvenile igneous and sedimentary rocks which developed in intra-continental magmatic arc and intra-arc basin environments bordering the western margin of the Eastern Block. The basement rocks from the Central Zone, regardless of their protolith age, composition and metamorphic grade, record a metamorphic history characterized by nearly isothermal decompression (M2) and then retrogressive cooling (M3) following peak metamorphism (M1). The decompression textures are represented by worm-like hypersthene + plagioclase symplectites or clinopyroxene + orthopyroxene + plagioclase coronas in mafic granulites, hornblende/cummingtonite + plagioclase symplectites in amphibolites, and cordierite coronas and cordierite + orthopyroxene or cordierite + spinel symplectites in pelitic rocks. The cooling textures are shown by hornblende + plagioclase symplectites in mafic granulites, chlorite + epidote + mica retrogressive rims around garnet or hornblende grains in amphibolites, and biotite + K-feldspar ± muscovite ± magnetite replacing garnet, cordierite and sillimanite in pelitic gneisses. These textural relations and their P-T estimates define near-isothermal decompressional clockwise P-T paths, which, in combination with lithological, structural and geochronological constraints, are in accord with collision between the Eastern and Western Blocks of the North China Craton at ~1.8 Ga. (C) Elsevier Science B.V.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamresen_US
dc.relation.ispartofPrecambrian Researchen_US
dc.rightsPrecambrian Research. Copyright © Elsevier BV.-
dc.subjectContinental Collisionen_US
dc.subjectMetamorphismen_US
dc.subjectNorth China Cratonen_US
dc.subjectP-T Pathsen_US
dc.subjectTectonothermal Evolutionen_US
dc.titleMetamorphism of basement rocks in the Central Zone of the North China Craton: Implications for paleoproterozoic tectonic evolutionen_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.doi10.1016/S0301-9268(00)00076-0en_US
dc.identifier.scopuseid_2-s2.0-0033776440en_US
dc.identifier.hkuros57283-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033776440&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume103en_US
dc.identifier.issue1-2en_US
dc.identifier.spage55en_US
dc.identifier.epage88en_US
dc.identifier.isiWOS:000088843900003-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridZhao, G=7403296321en_US
dc.identifier.scopusauthoridCawood, PA=7004146041en_US
dc.identifier.scopusauthoridWilde, SA=35254758600en_US
dc.identifier.scopusauthoridSun, M=25932315800en_US
dc.identifier.scopusauthoridLu, L=7403963741en_US

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