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Article: Precise molybdenite Re-Os and mica Ar-Ar dating of the Mesozoic Yaogangxian tungsten deposit, central Nanling district, South China

TitlePrecise molybdenite Re-Os and mica Ar-Ar dating of the Mesozoic Yaogangxian tungsten deposit, central Nanling district, South China
Authors
KeywordsAr-Ar
China
Mica
Molybdenite
Nanling region
Re-Os
Tungsten
Issue Date2006
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00126/index.htm
Citation
Mineralium Deposita, 2006, v. 41 n. 7, p. 661-669 How to Cite?
AbstractThe Yaogangxian deposit in the central Nanling region, South China consists of vein-type ore bodies hosted in Cambrian to Jurassic strata and Mesozoic granitic intrusions. Wolframite and molybdenite are the dominant ore minerals intergrown with gangue minerals of quartz, feldspar, phlogopite, and muscovite. We have carried out molybdenite Re-Os and phlogopite and muscovite 40Ar/ 39Ar dating to better understand the timing and genesis of mineralization. Re-Os dating of eight molybdenite samples yielded model ages ranging from 152.0±3.5 to 161.1±4.5 Ma, with an average of 156.0 Ma. The Re-Os analyses give a well-defined 187Re/ 187Os isochron with an age of 154.9±2.6 Ma (MSWD=2.4). Hydrothermal phlogopite and muscovite display extremely flat 40Ar/ 39Ar age spectra. Phlogopite yields a 40Ar/ 39Ar plateau age of 153.0±1.1 Ma, whereas muscovite yields a plateau age of 155.1±1.1 Ma. Both 40Ar/ 39Ar ages are in good agreement with the Re-Os ages, placing the timing of tungsten mineralization at about 154 Ma. This age is consistent with the field relationships. Our new data, when combined with published geochronological results from other major deposits in this region, suggest that large scale W-Sn mineralization occurred throughout the central Nanling region in the Late Jurassic. © Springer-Verlag 2006.
Persistent Identifierhttp://hdl.handle.net/10722/72563
ISSN
2015 Impact Factor: 3.467
2015 SCImago Journal Rankings: 1.677
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPeng, Jen_HK
dc.contributor.authorZhou, MFen_HK
dc.contributor.authorHu, Ren_HK
dc.contributor.authorShen, Nen_HK
dc.contributor.authorYuan, Sen_HK
dc.contributor.authorBi, Xen_HK
dc.contributor.authorDu, Aen_HK
dc.contributor.authorQu, Wen_HK
dc.date.accessioned2010-09-06T06:43:01Z-
dc.date.available2010-09-06T06:43:01Z-
dc.date.issued2006en_HK
dc.identifier.citationMineralium Deposita, 2006, v. 41 n. 7, p. 661-669en_HK
dc.identifier.issn0026-4598en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72563-
dc.description.abstractThe Yaogangxian deposit in the central Nanling region, South China consists of vein-type ore bodies hosted in Cambrian to Jurassic strata and Mesozoic granitic intrusions. Wolframite and molybdenite are the dominant ore minerals intergrown with gangue minerals of quartz, feldspar, phlogopite, and muscovite. We have carried out molybdenite Re-Os and phlogopite and muscovite 40Ar/ 39Ar dating to better understand the timing and genesis of mineralization. Re-Os dating of eight molybdenite samples yielded model ages ranging from 152.0±3.5 to 161.1±4.5 Ma, with an average of 156.0 Ma. The Re-Os analyses give a well-defined 187Re/ 187Os isochron with an age of 154.9±2.6 Ma (MSWD=2.4). Hydrothermal phlogopite and muscovite display extremely flat 40Ar/ 39Ar age spectra. Phlogopite yields a 40Ar/ 39Ar plateau age of 153.0±1.1 Ma, whereas muscovite yields a plateau age of 155.1±1.1 Ma. Both 40Ar/ 39Ar ages are in good agreement with the Re-Os ages, placing the timing of tungsten mineralization at about 154 Ma. This age is consistent with the field relationships. Our new data, when combined with published geochronological results from other major deposits in this region, suggest that large scale W-Sn mineralization occurred throughout the central Nanling region in the Late Jurassic. © Springer-Verlag 2006.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00126/index.htmen_HK
dc.relation.ispartofMineralium Depositaen_HK
dc.subjectAr-Aren_HK
dc.subjectChinaen_HK
dc.subjectMicaen_HK
dc.subjectMolybdeniteen_HK
dc.subjectNanling regionen_HK
dc.subjectRe-Osen_HK
dc.subjectTungstenen_HK
dc.titlePrecise molybdenite Re-Os and mica Ar-Ar dating of the Mesozoic Yaogangxian tungsten deposit, central Nanling district, South Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0026-4598&volume=41&issue=7&spage=661&epage=669&date=2006&atitle=Precise+molybdenite+Re-Os+and+mica+Ar-Ar+dating+of+the+Mesozoic+Yaogangxian+tungsten+deposit,+central+Nanling+district,+South+Chinaen_HK
dc.identifier.emailZhou, MF:mfzhou@hkucc.hku.hken_HK
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00126-006-0084-4en_HK
dc.identifier.scopuseid_2-s2.0-33749619086en_HK
dc.identifier.hkuros167291en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33749619086&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume41en_HK
dc.identifier.issue7en_HK
dc.identifier.spage661en_HK
dc.identifier.epage669en_HK
dc.identifier.isiWOS:000241164500003-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridPeng, J=8230916900en_HK
dc.identifier.scopusauthoridZhou, MF=7403506005en_HK
dc.identifier.scopusauthoridHu, R=7202640800en_HK
dc.identifier.scopusauthoridShen, N=35757831500en_HK
dc.identifier.scopusauthoridYuan, S=14833664100en_HK
dc.identifier.scopusauthoridBi, X=7102242579en_HK
dc.identifier.scopusauthoridDu, A=35829586200en_HK
dc.identifier.scopusauthoridQu, W=8982620500en_HK
dc.identifier.citeulike949487-

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