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Article: Platinum-group element (PGE) geochemistry of the Emeishan basalts in the Pan-Xi area, SW China
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TitlePlatinum-group element (PGE) geochemistry of the Emeishan basalts in the Pan-Xi area, SW China
 
AuthorsZhong, H1
Zhu, W1
Qi, L1 2
Zhou, M2
Song, X1
Zhang, Y3
 
KeywordsBasalts
Pan-Xi area
PGE
Sulfides
 
Issue Date2006
 
PublisherScience China Press. The Journal's web site is located at http://www.springerlink.com/content/1001-6538/
 
CitationChinese Science Bulletin, 2006, v. 51 n. 7, p. 845-854 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s11434-006-0845-6
 
AbstractThe Longzhoushan and Ertan basalts in the Pan-Xi area were generated by relatively low degrees of partial melting (< 7%), during which Ir, Ru, and Rh are compatible while Pt and Pd are incompatible. Most of these samples have high PGE concentrations and much higher Pd/Ir and Cu/Pd ratios than those of primitive mantle. A small amount of sulfides (∼0.007%) remained in the mantle source during partial melting, whereas part of the magmas reached sulfide saturation and segregated PGE-rich sulfides (∼0.020%-0.033%) during ascent period. Osmium, Ir, and Pt could form platinum-group metallic alloys hosted in chromites or sulfides during fractional crystallization process, leading to the decoupling of Pt and Pd contents and considerable variations of Ir contents. Sulfides segregated from the basaltic magmas may provide important material sources for the formation of the Cu-Ni-PGE deposits (mineralization) in the mafic-ultramafic intrusions near the magma conduits. © Science in China Press 2006.
 
ISSN1001-6538
2012 Impact Factor: 1.319
2012 SCImago Journal Rankings: 0.382
 
DOIhttp://dx.doi.org/10.1007/s11434-006-0845-6
 
ISI Accession Number IDWOS:000237493500013
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorZhong, H
 
dc.contributor.authorZhu, W
 
dc.contributor.authorQi, L
 
dc.contributor.authorZhou, M
 
dc.contributor.authorSong, X
 
dc.contributor.authorZhang, Y
 
dc.date.accessioned2010-09-06T06:45:54Z
 
dc.date.available2010-09-06T06:45:54Z
 
dc.date.issued2006
 
dc.description.abstractThe Longzhoushan and Ertan basalts in the Pan-Xi area were generated by relatively low degrees of partial melting (< 7%), during which Ir, Ru, and Rh are compatible while Pt and Pd are incompatible. Most of these samples have high PGE concentrations and much higher Pd/Ir and Cu/Pd ratios than those of primitive mantle. A small amount of sulfides (∼0.007%) remained in the mantle source during partial melting, whereas part of the magmas reached sulfide saturation and segregated PGE-rich sulfides (∼0.020%-0.033%) during ascent period. Osmium, Ir, and Pt could form platinum-group metallic alloys hosted in chromites or sulfides during fractional crystallization process, leading to the decoupling of Pt and Pd contents and considerable variations of Ir contents. Sulfides segregated from the basaltic magmas may provide important material sources for the formation of the Cu-Ni-PGE deposits (mineralization) in the mafic-ultramafic intrusions near the magma conduits. © Science in China Press 2006.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationChinese Science Bulletin, 2006, v. 51 n. 7, p. 845-854 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s11434-006-0845-6
 
dc.identifier.doihttp://dx.doi.org/10.1007/s11434-006-0845-6
 
dc.identifier.epage854
 
dc.identifier.hkuros167279
 
dc.identifier.isiWOS:000237493500013
 
dc.identifier.issn1001-6538
2012 Impact Factor: 1.319
2012 SCImago Journal Rankings: 0.382
 
dc.identifier.issue7
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-33748878372
 
dc.identifier.spage845
 
dc.identifier.urihttp://hdl.handle.net/10722/72873
 
dc.identifier.volume51
 
dc.languageeng
 
dc.publisherScience China Press. The Journal's web site is located at http://www.springerlink.com/content/1001-6538/
 
dc.publisher.placeChina
 
dc.relation.ispartofChinese Science Bulletin
 
dc.relation.referencesReferences in Scopus
 
dc.subjectBasalts
 
dc.subjectPan-Xi area
 
dc.subjectPGE
 
dc.subjectSulfides
 
dc.titlePlatinum-group element (PGE) geochemistry of the Emeishan basalts in the Pan-Xi area, SW China
 
dc.typeArticle
 
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<contributor.author>Song, X</contributor.author>
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Author Affiliations
  1. Institute of Geochemistry Chinese Academy of Sciences
  2. The University of Hong Kong
  3. Chengdu Institute of Geology and Mineral Resources