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Article: Mesozoic lithosphere destruction beneath the North China Craton: Evidence from major-, trace-element and Sr-Nd-Pb isotope studies of Fangcheng basalts

TitleMesozoic lithosphere destruction beneath the North China Craton: Evidence from major-, trace-element and Sr-Nd-Pb isotope studies of Fangcheng basalts
Authors
Issue Date2002
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00410/index.htm
Citation
Contributions To Mineralogy And Petrology, 2002, v. 144 n. 2, p. 241-254 How to Cite?
AbstractMajor- and trace-element as well as Sr-Nd-Pb isotopic data of the Mesozoic Fangcheng basalts provide an insight into the nature of their mantle source and the secular evolution of the lithospheric mantle beneath the North China Craton. Fangcheng basalts include alkali basalt and olivine tholeiite, both characterized by high Mg (Mg#=65-72), Si, and Ca and low K + Na, Ti, and P. They are extremely enriched in LREEs ((La/ Yb)N=39.3-49.3) and LILEs (Ce, Rb, Ba, U, Th) and depleted in HFSEs (Nb, Ta, Zr, Hf, Ti), with slightly negative Pb anomaly. Correspondingly, these basalts are exceedingly high in εSr (74.0∼81.5) and low in εNd (-13.1∼-14.2) and 206Pb/204Pb (< 17.8). Since crustal contamination during the magma ascent is insignificant, the Fangcheng basalts could reflect the nature of its mantle source. The isotopic data of these basalts cannot be explained by mixing of typical mantle components, but can be accounted for by interaction of an old lithospheric mantle with the lower/middle crust. Therefore, we consider that these basalts originated from the Mesozoic lithospheric mantle, which evolved from its Paleozoic counterpart through extensive interaction with a crust-derived melt. We propose that this melt was generated from the melting of the subducted lower crust of the Yangtze Craton. This peculiar Mesozoic lithospheric mantle somehow was in turn replaced later by the hot and thin Cenozoic lithospheric mantle.
Persistent Identifierhttp://hdl.handle.net/10722/72570
ISSN
2015 Impact Factor: 3.218
2015 SCImago Journal Rankings: 2.582
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, HFen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorZhou, XHen_HK
dc.contributor.authorFan, WMen_HK
dc.contributor.authorZhai, MGen_HK
dc.contributor.authorYin, JFen_HK
dc.date.accessioned2010-09-06T06:43:05Z-
dc.date.available2010-09-06T06:43:05Z-
dc.date.issued2002en_HK
dc.identifier.citationContributions To Mineralogy And Petrology, 2002, v. 144 n. 2, p. 241-254en_HK
dc.identifier.issn0010-7999en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72570-
dc.description.abstractMajor- and trace-element as well as Sr-Nd-Pb isotopic data of the Mesozoic Fangcheng basalts provide an insight into the nature of their mantle source and the secular evolution of the lithospheric mantle beneath the North China Craton. Fangcheng basalts include alkali basalt and olivine tholeiite, both characterized by high Mg (Mg#=65-72), Si, and Ca and low K + Na, Ti, and P. They are extremely enriched in LREEs ((La/ Yb)N=39.3-49.3) and LILEs (Ce, Rb, Ba, U, Th) and depleted in HFSEs (Nb, Ta, Zr, Hf, Ti), with slightly negative Pb anomaly. Correspondingly, these basalts are exceedingly high in εSr (74.0∼81.5) and low in εNd (-13.1∼-14.2) and 206Pb/204Pb (< 17.8). Since crustal contamination during the magma ascent is insignificant, the Fangcheng basalts could reflect the nature of its mantle source. The isotopic data of these basalts cannot be explained by mixing of typical mantle components, but can be accounted for by interaction of an old lithospheric mantle with the lower/middle crust. Therefore, we consider that these basalts originated from the Mesozoic lithospheric mantle, which evolved from its Paleozoic counterpart through extensive interaction with a crust-derived melt. We propose that this melt was generated from the melting of the subducted lower crust of the Yangtze Craton. This peculiar Mesozoic lithospheric mantle somehow was in turn replaced later by the hot and thin Cenozoic lithospheric mantle.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00410/index.htmen_HK
dc.relation.ispartofContributions to Mineralogy and Petrologyen_HK
dc.titleMesozoic lithosphere destruction beneath the North China Craton: Evidence from major-, trace-element and Sr-Nd-Pb isotope studies of Fangcheng basaltsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0010-7999&volume=144&spage=241&epage=253&date=2002&atitle=Mesozoic+lithosphere+destruction+beneath+the+North+China+Craton:+evidence+from+major-,+trace-element+and+Sr-Nd-Pb+isotope+studies+of+Fangcheng+basaltsen_HK
dc.identifier.emailSun, M:minsun@hku.hken_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0036865928en_HK
dc.identifier.hkuros81836en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036865928&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume144en_HK
dc.identifier.issue2en_HK
dc.identifier.spage241en_HK
dc.identifier.epage254en_HK
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridZhang, HF=7409201720en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridZhou, XH=37033240200en_HK
dc.identifier.scopusauthoridFan, WM=7401635313en_HK
dc.identifier.scopusauthoridZhai, MG=7007119530en_HK
dc.identifier.scopusauthoridYin, JF=7401693599en_HK

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