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Article: Permian, rifting related fayalite syenite in the Panxi region, SW China

TitlePermian, rifting related fayalite syenite in the Panxi region, SW China
Authors
KeywordsA-type
Emeishan large igneous province
Fayalite
SHRIMP zircon dating
Syenite
Issue Date2008
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/lithos
Citation
Lithos, 2008, v. 101 n. 1-2, p. 54-73 How to Cite?
AbstractWithin the Panxi rift of the Permian Emeishan large igneous province (ELIP), SW China, a 20 km2 quartz-bearing fayalite syenitic pluton intrudes the 260 Ma Baima igneous complex (BIC). The fayalite syenite is dated using SHRIMP zircon U-Pb techniques at 252 ± 2.5 Ma. The Panxi fayalite syenite is mainly composed of alkali feldspar, ferroan augite, fayalite, quartz and Fe-Ti oxides and contains 61.8-63.7 wt.% SiO2, 5.0-7.3 wt.% Fe2O3t and 9.9-12.1 wt.% total alkalis, belonging to an A-type variety of ferroan alkalic metaluminous granitoids. The fayalite syenite displays positive Eu anomalies (Eu/Eu* = 0.9-8.9) and is enriched in LREE [(La/Yb)N =6.6-11.5]. The e{open}Nd values and (87Sr/86Sr)initial ratios of the fayalite syenite range from + 1.3 to + 1.9 and from 0.7035 to 0.7068, respectively. The fayalite syenite and the BIC had the same mantle source; however the 8 myr age gap between them suggests the fayalite syenite formed by remelting of underplated mafic magmas injected into the crust during ELIP magmatism. The ages of the fayalite syenite and BIC are coincident with two Permian mass extinction events and suggest that ELIP may have influenced both. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/73066
ISSN
2015 Impact Factor: 3.723
2015 SCImago Journal Rankings: 2.920
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorShellnutt, JGen_HK
dc.contributor.authorZhou, MFen_HK
dc.date.accessioned2010-09-06T06:47:43Z-
dc.date.available2010-09-06T06:47:43Z-
dc.date.issued2008en_HK
dc.identifier.citationLithos, 2008, v. 101 n. 1-2, p. 54-73en_HK
dc.identifier.issn0024-4937en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73066-
dc.description.abstractWithin the Panxi rift of the Permian Emeishan large igneous province (ELIP), SW China, a 20 km2 quartz-bearing fayalite syenitic pluton intrudes the 260 Ma Baima igneous complex (BIC). The fayalite syenite is dated using SHRIMP zircon U-Pb techniques at 252 ± 2.5 Ma. The Panxi fayalite syenite is mainly composed of alkali feldspar, ferroan augite, fayalite, quartz and Fe-Ti oxides and contains 61.8-63.7 wt.% SiO2, 5.0-7.3 wt.% Fe2O3t and 9.9-12.1 wt.% total alkalis, belonging to an A-type variety of ferroan alkalic metaluminous granitoids. The fayalite syenite displays positive Eu anomalies (Eu/Eu* = 0.9-8.9) and is enriched in LREE [(La/Yb)N =6.6-11.5]. The e{open}Nd values and (87Sr/86Sr)initial ratios of the fayalite syenite range from + 1.3 to + 1.9 and from 0.7035 to 0.7068, respectively. The fayalite syenite and the BIC had the same mantle source; however the 8 myr age gap between them suggests the fayalite syenite formed by remelting of underplated mafic magmas injected into the crust during ELIP magmatism. The ages of the fayalite syenite and BIC are coincident with two Permian mass extinction events and suggest that ELIP may have influenced both. © 2007 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/lithosen_HK
dc.relation.ispartofLithosen_HK
dc.rightsLithos . Copyright © Elsevier BV.en_HK
dc.subjectA-typeen_HK
dc.subjectEmeishan large igneous provinceen_HK
dc.subjectFayaliteen_HK
dc.subjectSHRIMP zircon datingen_HK
dc.subjectSyeniteen_HK
dc.titlePermian, rifting related fayalite syenite in the Panxi region, SW Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0024-4937&volume=102&spage=54–73&epage=&date=2008&atitle=Permian,+rifting+related+fayalite+syenite+in+the+Panxi+region,+SW+China.en_HK
dc.identifier.emailZhou, MF:mfzhou@hkucc.hku.hken_HK
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.lithos.2007.07.007en_HK
dc.identifier.scopuseid_2-s2.0-38949098133en_HK
dc.identifier.hkuros144288en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38949098133&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume101en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage54en_HK
dc.identifier.epage73en_HK
dc.identifier.isiWOS:000254377000004-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridShellnutt, JG=17343022500en_HK
dc.identifier.scopusauthoridZhou, MF=7403506005en_HK

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