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Article: Re-Os dating of the Kalatongke Cu-Ni deposit, Altay Shan, NW China, and resulting geodynamic implications

TitleRe-Os dating of the Kalatongke Cu-Ni deposit, Altay Shan, NW China, and resulting geodynamic implications
Authors
KeywordsAltay
China
Cu-Ni Deposit
Geodynamics
Kalatongke
Re-Os Isotopic Dating
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/oregeorev
Citation
Ore Geology Reviews, 2007, v. 32 n. 1-2, p. 452-468 How to Cite?
AbstractKalatongke is a large Cu-Ni deposit in the southern part of the Altay orogenic belt, northwestern China. Rhenium and osmium isotopic analyses of Ni- and Cu-bearing sulfide minerals from the deposit have been used to determine the timing of mineralization, the source of osmium, and, by inference, the source of ore metals. Sulfide ore samples have Os and Re concentrations varying in the ranges 0.29 to 3.07 ppb and 6.605 to 61.10 ppb, respectively. Analyses of these data yield a six-point isochron with an age of 305 ± 15 Ma. An initial 187Os/ 188Os ratio of 0.352 ± 0.044 (mean square of weighted deviates = 2.1) and δ 34S values of - 3.5 to + 3.0‰ for the ores, as well as initial 87Sr/ 86Sr ratios of metalliferous intrusions that vary from 0.70375 to 0.70504, suggest a magmatic source for the ores, with the melts dominated by mantle contributions. The intrusions clearly show island-arc geochemical signatures, such as negative anomalies for Nb, Ta, Zr and Ti and enrichment in LILE. The results indicate that the Kalatongke mafic-ultramafic intrusions, along with the Cu-Ni deposit, formed by subduction of oceanic crust in the Late Carboniferous-Early Permian. We suggest the mafic-ultramafic and associated with Ni-Cu mineralization occurred in an Alaska-type subduction zone-arc setting. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/151215
ISSN
2015 Impact Factor: 3.819
2015 SCImago Journal Rankings: 1.753
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHan, Cen_US
dc.contributor.authorXiao, Wen_US
dc.contributor.authorZhao, Gen_US
dc.contributor.authorQu, Wen_US
dc.contributor.authorDu, Aen_US
dc.date.accessioned2012-06-26T06:18:47Z-
dc.date.available2012-06-26T06:18:47Z-
dc.date.issued2007en_US
dc.identifier.citationOre Geology Reviews, 2007, v. 32 n. 1-2, p. 452-468en_US
dc.identifier.issn0169-1368en_US
dc.identifier.urihttp://hdl.handle.net/10722/151215-
dc.description.abstractKalatongke is a large Cu-Ni deposit in the southern part of the Altay orogenic belt, northwestern China. Rhenium and osmium isotopic analyses of Ni- and Cu-bearing sulfide minerals from the deposit have been used to determine the timing of mineralization, the source of osmium, and, by inference, the source of ore metals. Sulfide ore samples have Os and Re concentrations varying in the ranges 0.29 to 3.07 ppb and 6.605 to 61.10 ppb, respectively. Analyses of these data yield a six-point isochron with an age of 305 ± 15 Ma. An initial 187Os/ 188Os ratio of 0.352 ± 0.044 (mean square of weighted deviates = 2.1) and δ 34S values of - 3.5 to + 3.0‰ for the ores, as well as initial 87Sr/ 86Sr ratios of metalliferous intrusions that vary from 0.70375 to 0.70504, suggest a magmatic source for the ores, with the melts dominated by mantle contributions. The intrusions clearly show island-arc geochemical signatures, such as negative anomalies for Nb, Ta, Zr and Ti and enrichment in LILE. The results indicate that the Kalatongke mafic-ultramafic intrusions, along with the Cu-Ni deposit, formed by subduction of oceanic crust in the Late Carboniferous-Early Permian. We suggest the mafic-ultramafic and associated with Ni-Cu mineralization occurred in an Alaska-type subduction zone-arc setting. © 2006 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/oregeoreven_US
dc.relation.ispartofOre Geology Reviewsen_US
dc.rightsOre Geology Reviews. Copyright © Elsevier BV.-
dc.subjectAltayen_US
dc.subjectChinaen_US
dc.subjectCu-Ni Depositen_US
dc.subjectGeodynamicsen_US
dc.subjectKalatongkeen_US
dc.subjectRe-Os Isotopic Datingen_US
dc.titleRe-Os dating of the Kalatongke Cu-Ni deposit, Altay Shan, NW China, and resulting geodynamic implicationsen_US
dc.typeArticleen_US
dc.identifier.emailZhao, G:gzhao@hkucc.hku.hken_US
dc.identifier.authorityZhao, G=rp00842en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.oregeorev.2006.11.004en_US
dc.identifier.scopuseid_2-s2.0-34548077218en_US
dc.identifier.hkuros144322-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34548077218&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume32en_US
dc.identifier.issue1-2en_US
dc.identifier.spage452en_US
dc.identifier.epage468en_US
dc.identifier.isiWOS:000249859200020-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridHan, C=35794513200en_US
dc.identifier.scopusauthoridXiao, W=7202456615en_US
dc.identifier.scopusauthoridZhao, G=7403296321en_US
dc.identifier.scopusauthoridQu, W=8982620500en_US
dc.identifier.scopusauthoridDu, A=35829586200en_US

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