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Article: Metamorphism of basement rocks in the Central Zone of the North China Craton: Implications for paleoproterozoic tectonic evolution
Title | Metamorphism of basement rocks in the Central Zone of the North China Craton: Implications for paleoproterozoic tectonic evolution |
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Authors | |
Keywords | Continental Collision Metamorphism North China Craton P-T Paths Tectonothermal Evolution |
Issue Date | 2000 |
Publisher | Elsevier 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? |
Abstract | Lithological, 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 Identifier | http://hdl.handle.net/10722/151028 |
ISSN | 2021 Impact Factor: 4.261 2020 SCImago Journal Rankings: 2.358 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Zhao, G | en_US |
dc.contributor.author | Cawood, PA | en_US |
dc.contributor.author | Wilde, SA | en_US |
dc.contributor.author | Sun, M | en_US |
dc.contributor.author | Lu, L | en_US |
dc.date.accessioned | 2012-06-26T06:16:09Z | - |
dc.date.available | 2012-06-26T06:16:09Z | - |
dc.date.issued | 2000 | en_US |
dc.identifier.citation | Precambrian Research, 2000, v. 103 n. 1-2, p. 55-88 | en_US |
dc.identifier.issn | 0301-9268 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/151028 | - |
dc.description.abstract | Lithological, 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.language | eng | en_US |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamres | en_US |
dc.relation.ispartof | Precambrian Research | en_US |
dc.rights | Precambrian Research. Copyright © Elsevier BV. | - |
dc.subject | Continental Collision | en_US |
dc.subject | Metamorphism | en_US |
dc.subject | North China Craton | en_US |
dc.subject | P-T Paths | en_US |
dc.subject | Tectonothermal Evolution | en_US |
dc.title | Metamorphism of basement rocks in the Central Zone of the North China Craton: Implications for paleoproterozoic tectonic evolution | en_US |
dc.type | Article | en_US |
dc.identifier.email | Zhao, G: gzhao@hkucc.hku.hk | en_US |
dc.identifier.email | Sun, M: minsun@hku.hk | en_US |
dc.identifier.authority | Zhao, G=rp00842 | en_US |
dc.identifier.authority | Sun, M=rp00780 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/S0301-9268(00)00076-0 | en_US |
dc.identifier.scopus | eid_2-s2.0-0033776440 | en_US |
dc.identifier.hkuros | 57283 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0033776440&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 103 | en_US |
dc.identifier.issue | 1-2 | en_US |
dc.identifier.spage | 55 | en_US |
dc.identifier.epage | 88 | en_US |
dc.identifier.isi | WOS:000088843900003 | - |
dc.publisher.place | Netherlands | en_US |
dc.identifier.scopusauthorid | Zhao, G=7403296321 | en_US |
dc.identifier.scopusauthorid | Cawood, PA=7004146041 | en_US |
dc.identifier.scopusauthorid | Wilde, SA=35254758600 | en_US |
dc.identifier.scopusauthorid | Sun, M=25932315800 | en_US |
dc.identifier.scopusauthorid | Lu, L=7403963741 | en_US |
dc.identifier.issnl | 0301-9268 | - |