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Article: Evolution of subcontinental lithospheric mantle beneath eastern China: Re-Os isotopic evidence from mantle xenoliths in Paleozoic kimberlites and Mesozoic basalts

TitleEvolution of subcontinental lithospheric mantle beneath eastern China: Re-Os isotopic evidence from mantle xenoliths in Paleozoic kimberlites and Mesozoic basalts
Authors
KeywordsEastern China
Mantle xenoliths
PGEs
Re depletion ages
ReØisotopes
Subcontinental lithospheric mantle
Issue Date2008
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, 2008, v. 155 n. 3, p. 271-293 How to Cite?
Beiträge zur Mineralogie und Petrographie, 2008, v. 155 n. 3, p. 271-293 How to Cite?
AbstractThe ages of subcontinental lithospheric mantle beneath the North China and South China cratons are less well-constrained than the overlying crust. We report Re-Os isotope systematics of mantle xenoliths entrained in Paleozoic kimberlites and Mesozoic basalts from eastern China. Peridotite xenoliths from the Fuxian and Mengyin Paleozoic diamondiferous kimberlites in the North China Craton give Archean Re depletion ages of 2.6-3.2 Ga and melt depletion ages of 2.9-3.4 Ga. No obvious differences in Re and Os abundances, Os isotopic ratios and model ages are observed between spinel-facies and garnet-facies peridotites from both kimberlite localities. The Re-Os isotopic data, together with the PGE concentrations, demonstrate that beneath the Archean continental crust of the eastern North China Craton, Archean lithospheric mantle of spinel- to diamond-facies existed without apparent compositional stratification during the Paleozoic. The Mesozoic and Cenozoic basalt-borne peridotite and pyroxenite xenoliths, on the other hand, show geochemical features indicating metasomatic enrichment, along with a large range of the Re-Os isotopic model ages from Proterozoic to Phanerozoic. These features indicate that lithospheric transformation or refertilization through melt-peridotite interaction could be the primary mechanism for compositional changes during the Phanerozoic, rather than delamination or thermal-mechanical erosion, despite the potential of these latter processes to play an important role for the loss of garnet-facies mantle. A fresh garnet lherzolite xenolith from the Yangtze Block has a Re depletion age of ∼1.04 Ga, much younger than overlying Archean crustal rocks but the same Re depletion ages as spinel lherzolite xenoliths from adjacent Mesozoic basalts, indicating Neoproterozoic resetting of the Re-Os system in the South China Craton. © Springer-Verlag 2007.
Persistent Identifierhttp://hdl.handle.net/10722/72659
ISSN
2015 Impact Factor: 3.218
2015 SCImago Journal Rankings: 2.582
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, HFen_HK
dc.contributor.authorGoldstein, SLen_HK
dc.contributor.authorZhou, XHen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorZheng, JPen_HK
dc.contributor.authorCai, Yen_HK
dc.date.accessioned2010-09-06T06:43:54Z-
dc.date.available2010-09-06T06:43:54Z-
dc.date.issued2008en_HK
dc.identifier.citationContributions To Mineralogy And Petrology, 2008, v. 155 n. 3, p. 271-293en_HK
dc.identifier.citationBeiträge zur Mineralogie und Petrographie, 2008, v. 155 n. 3, p. 271-293-
dc.identifier.issn0010-7999en_HK
dc.identifier.issn0366-1369-
dc.identifier.urihttp://hdl.handle.net/10722/72659-
dc.description.abstractThe ages of subcontinental lithospheric mantle beneath the North China and South China cratons are less well-constrained than the overlying crust. We report Re-Os isotope systematics of mantle xenoliths entrained in Paleozoic kimberlites and Mesozoic basalts from eastern China. Peridotite xenoliths from the Fuxian and Mengyin Paleozoic diamondiferous kimberlites in the North China Craton give Archean Re depletion ages of 2.6-3.2 Ga and melt depletion ages of 2.9-3.4 Ga. No obvious differences in Re and Os abundances, Os isotopic ratios and model ages are observed between spinel-facies and garnet-facies peridotites from both kimberlite localities. The Re-Os isotopic data, together with the PGE concentrations, demonstrate that beneath the Archean continental crust of the eastern North China Craton, Archean lithospheric mantle of spinel- to diamond-facies existed without apparent compositional stratification during the Paleozoic. The Mesozoic and Cenozoic basalt-borne peridotite and pyroxenite xenoliths, on the other hand, show geochemical features indicating metasomatic enrichment, along with a large range of the Re-Os isotopic model ages from Proterozoic to Phanerozoic. These features indicate that lithospheric transformation or refertilization through melt-peridotite interaction could be the primary mechanism for compositional changes during the Phanerozoic, rather than delamination or thermal-mechanical erosion, despite the potential of these latter processes to play an important role for the loss of garnet-facies mantle. A fresh garnet lherzolite xenolith from the Yangtze Block has a Re depletion age of ∼1.04 Ga, much younger than overlying Archean crustal rocks but the same Re depletion ages as spinel lherzolite xenoliths from adjacent Mesozoic basalts, indicating Neoproterozoic resetting of the Re-Os system in the South China Craton. © Springer-Verlag 2007.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.relation.ispartofBeiträge zur Mineralogie und Petrographie-
dc.subjectEastern Chinaen_HK
dc.subjectMantle xenolithsen_HK
dc.subjectPGEsen_HK
dc.subjectRe depletion agesen_HK
dc.subjectReØisotopesen_HK
dc.subjectSubcontinental lithospheric mantleen_HK
dc.titleEvolution of subcontinental lithospheric mantle beneath eastern China: Re-Os isotopic evidence from mantle xenoliths in Paleozoic kimberlites and Mesozoic basaltsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0010-7999&volume=155&spage=271&epage=293&date=2007&atitle=Evolution+of+subcontinental+lithospheric+mantle+beneath+eastern+China:+Re-Os+isotopic+evidence+from+mantle+xenoliths+in+Paleozoic+kimberlites+and+Mesozoic+basalts.+en_HK
dc.identifier.emailSun, M:minsun@hku.hken_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00410-007-0241-5en_HK
dc.identifier.scopuseid_2-s2.0-38149137364en_HK
dc.identifier.hkuros144179en_HK
dc.identifier.hkuros219580-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38149137364&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume155en_HK
dc.identifier.issue3en_HK
dc.identifier.spage271en_HK
dc.identifier.epage293en_HK
dc.identifier.isiWOS:000252294400001-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridZhang, HF=7409201720en_HK
dc.identifier.scopusauthoridGoldstein, SL=7402140509en_HK
dc.identifier.scopusauthoridZhou, XH=7410089813en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridZheng, JP=35212471400en_HK
dc.identifier.scopusauthoridCai, Y=36985180200en_HK
dc.customcontrol.immutablecsl 130828-

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