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Article: Evolution of calc-alkaline to alkaline magmatism through Carboniferous convergence to Permian transcurrent tectonics, western Chinese Tianshan

TitleEvolution of calc-alkaline to alkaline magmatism through Carboniferous convergence to Permian transcurrent tectonics, western Chinese Tianshan
Authors
KeywordsChinese Tianshan
Geochemistry
Granitoids
Late Palaeozoic
Transcurrent Shear Zones
Zircon U-Pb Geochronology
Issue Date2009
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00531/index.htm
Citation
International Journal of Earth Sciences, 2009, v. 98 n. 6, p. 1275-1298 How to Cite?
AbstractContinuous magmatic activity occurred in the western Chinese Tianshan, Central Asia, from the Carboniferous to the Permian, i.e. before and after the Late Carboniferous amalgamation of Junggar and the Yili Blocks. Zircon U-Pb LA-ICPMS and Ar-Ar data reveal a coincidence in time between regional wrench faulting and granitoid emplacement. Permian post-collisional granitoids crop out within or at the margins of large-scale dextral strike-slip shear zones, some of them show synkinematic fabrics. The whole rock geochemical features of the Early-Middle Permian granitoids indicate an evolution from high-K calc-alkaline towards alkaline series. In other places of the North Tianshan, alkaline magmatism occurred together with deep marine sedimentation within elongated troughs controlled by wrench faults. Therefore, in contrast with previous interpretations that forwarded continental rift or mantle plume hypotheses, the coexistence of diverse magmatic sources during the same tectonic episode suggests that post-collisional lithosphere-scale transcurrent shearing tightly controlled the magmatic activity during the transition from convergent margin to intraplate anorogenic processes. © Springer-Verlag 2009.
Persistent Identifierhttp://hdl.handle.net/10722/92226
ISSN
2015 Impact Factor: 2.133
2015 SCImago Journal Rankings: 0.992
ISI Accession Number ID
Funding AgencyGrant Number
National Basic Research Program of China2007CB411301
2001CB409804
French Embassy in Beijing
French-Chinese Advanced Research ProgramPRA T05-02
Institute of Earth Sciences, Academia Sinica
Funding Information:

The authors are grateful to Dr. W. J. Xiao for inviting this contribution. We acknowledge the accurate work by Dr. M. B. Allen and another anonymous reviewer, their comments and suggestions have been extremely useful for improving our manuscript. The research work was financially supported by the National Basic Research Program of China (973 Program) (Nos. 2007CB411301 and 2001CB409804). French Embassy in Beijing, the French-Chinese Advanced Research Program (PRA T05-02) and Taiwanese CREATE project (Institute of Earth Sciences, Academia Sinica) are appreciated for financing part of research of the first author.

References

 

DC FieldValueLanguage
dc.contributor.authorWang, Ben_HK
dc.contributor.authorCluzel, Den_HK
dc.contributor.authorShu, Len_HK
dc.contributor.authorFaure, Men_HK
dc.contributor.authorCharvet, Jen_HK
dc.contributor.authorChen, Yen_HK
dc.contributor.authorMeffre, Sen_HK
dc.contributor.authorde Jong, Ken_HK
dc.date.accessioned2010-09-17T10:39:48Z-
dc.date.available2010-09-17T10:39:48Z-
dc.date.issued2009en_HK
dc.identifier.citationInternational Journal of Earth Sciences, 2009, v. 98 n. 6, p. 1275-1298en_HK
dc.identifier.issn1437-3254en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92226-
dc.description.abstractContinuous magmatic activity occurred in the western Chinese Tianshan, Central Asia, from the Carboniferous to the Permian, i.e. before and after the Late Carboniferous amalgamation of Junggar and the Yili Blocks. Zircon U-Pb LA-ICPMS and Ar-Ar data reveal a coincidence in time between regional wrench faulting and granitoid emplacement. Permian post-collisional granitoids crop out within or at the margins of large-scale dextral strike-slip shear zones, some of them show synkinematic fabrics. The whole rock geochemical features of the Early-Middle Permian granitoids indicate an evolution from high-K calc-alkaline towards alkaline series. In other places of the North Tianshan, alkaline magmatism occurred together with deep marine sedimentation within elongated troughs controlled by wrench faults. Therefore, in contrast with previous interpretations that forwarded continental rift or mantle plume hypotheses, the coexistence of diverse magmatic sources during the same tectonic episode suggests that post-collisional lithosphere-scale transcurrent shearing tightly controlled the magmatic activity during the transition from convergent margin to intraplate anorogenic processes. © Springer-Verlag 2009.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00531/index.htmen_HK
dc.relation.ispartofInternational Journal of Earth Sciencesen_HK
dc.subjectChinese Tianshanen_HK
dc.subjectGeochemistryen_HK
dc.subjectGranitoidsen_HK
dc.subjectLate Palaeozoicen_HK
dc.subjectTranscurrent Shear Zonesen_HK
dc.subjectZircon U-Pb Geochronologyen_HK
dc.titleEvolution of calc-alkaline to alkaline magmatism through Carboniferous convergence to Permian transcurrent tectonics, western Chinese Tianshanen_HK
dc.typeArticleen_HK
dc.identifier.emailChen, Y:ychenc@hkucc.hku.hken_HK
dc.identifier.authorityChen, Y=rp1318en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00531-008-0408-yen_HK
dc.identifier.scopuseid_2-s2.0-69949100753en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-69949100753&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume98en_HK
dc.identifier.issue6en_HK
dc.identifier.spage1275en_HK
dc.identifier.epage1298en_HK
dc.identifier.eissn1437-3262-
dc.identifier.isiWOS:000269376400006-
dc.identifier.citeulike3901736-

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