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Article: Ni-Cu-(PGE) magmatic sulfide deposits in the Yangliuping area, Permian Emeishan igneous province, SW China

TitleNi-Cu-(PGE) magmatic sulfide deposits in the Yangliuping area, Permian Emeishan igneous province, SW China
Authors
KeywordsContinental flood basalt
Late
Mafic-ultramafic sill
Ni-Cu-PGE sulfide deposit
SW China
The Emeishan large igneous province
Issue Date2003
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00126/index.htm
Citation
Mineralium Deposita, 2003, v. 38 n. 7, p. 831-843 How to Cite?
AbstractThe Ni-Cu-PGE sulfide deposits in the Yangliuping area, SW China, are hosted in mafic-ultramafic sills. The four mineralized sills are located in the Yangliuping tectonic dome and intrude Devonian carbonaceous marble, graphitic schist. The sills are 200-300 m thick and 1,000-2,000 m in strike length and now consist chiefly of serpentinite, talc schist, tremolite schist, and meta-gabbro. Disseminated Ni-Cu sulfide mineralisation occurs in the serpentinite in the lower parts of the sills. Massive sulfide mineralisation is located in the base of the sills and in the footwall along fractures beneath the mineralized serpentinite. Although the sulfide ores have been modified by hydrothermal activity, there are relict cumulate textures in the disseminated sulfides indicating a magmatic origin for the ores. The Yangliuping Intrusions and the Dashibao Formation have similar primitive-mantle normalized trace element and platinum group element (PGE) patterns, indicating that they are derived from a common parental magma type. The positive correlation between Cu concentrations and Cu/Zr ratios of the Dashibao Formation basalts indicates that the chalcophile elements were removed before eruption. We propose that fractional crystallization of the Yangliuping magma accompanied by the introduction of S and CO2 from the wall rocks caused the magma to become S-saturated leading to the segregation of magmatic sulfides that became enriched in Ni-Cu-(PGE). The sills acted as conduits for the overlying Dashibao Formation basalts with the sulfide liquid, along with early crystallizing olivine and pyroxene, segregating from the magma as it passed through the conduits prior to eruption.
Persistent Identifierhttp://hdl.handle.net/10722/72587
ISSN
2015 Impact Factor: 3.467
2015 SCImago Journal Rankings: 1.677
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSong, XYen_HK
dc.contributor.authorZhou, MFen_HK
dc.contributor.authorCao, ZMen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorWang, YLen_HK
dc.date.accessioned2010-09-06T06:43:14Z-
dc.date.available2010-09-06T06:43:14Z-
dc.date.issued2003en_HK
dc.identifier.citationMineralium Deposita, 2003, v. 38 n. 7, p. 831-843en_HK
dc.identifier.issn0026-4598en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72587-
dc.description.abstractThe Ni-Cu-PGE sulfide deposits in the Yangliuping area, SW China, are hosted in mafic-ultramafic sills. The four mineralized sills are located in the Yangliuping tectonic dome and intrude Devonian carbonaceous marble, graphitic schist. The sills are 200-300 m thick and 1,000-2,000 m in strike length and now consist chiefly of serpentinite, talc schist, tremolite schist, and meta-gabbro. Disseminated Ni-Cu sulfide mineralisation occurs in the serpentinite in the lower parts of the sills. Massive sulfide mineralisation is located in the base of the sills and in the footwall along fractures beneath the mineralized serpentinite. Although the sulfide ores have been modified by hydrothermal activity, there are relict cumulate textures in the disseminated sulfides indicating a magmatic origin for the ores. The Yangliuping Intrusions and the Dashibao Formation have similar primitive-mantle normalized trace element and platinum group element (PGE) patterns, indicating that they are derived from a common parental magma type. The positive correlation between Cu concentrations and Cu/Zr ratios of the Dashibao Formation basalts indicates that the chalcophile elements were removed before eruption. We propose that fractional crystallization of the Yangliuping magma accompanied by the introduction of S and CO2 from the wall rocks caused the magma to become S-saturated leading to the segregation of magmatic sulfides that became enriched in Ni-Cu-(PGE). The sills acted as conduits for the overlying Dashibao Formation basalts with the sulfide liquid, along with early crystallizing olivine and pyroxene, segregating from the magma as it passed through the conduits prior to eruption.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.subjectContinental flood basalten_HK
dc.subjectLateen_HK
dc.subjectMafic-ultramafic sillen_HK
dc.subjectNi-Cu-PGE sulfide depositen_HK
dc.subjectSW Chinaen_HK
dc.subjectThe Emeishan large igneous provinceen_HK
dc.titleNi-Cu-(PGE) magmatic sulfide deposits in the Yangliuping area, Permian Emeishan igneous province, SW Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0026-4598&volume=38&spage=p.831 &epage= 843&date=2003&atitle=Ni-Cu-(PGE)+magmatic+sulfide+deposits+in+the+Yangliuping+area,+Permian+Emeishan+igneous+province,+SW+Chinaen_HK
dc.identifier.emailZhou, MF:mfzhou@hkucc.hku.hken_HK
dc.identifier.emailSun, M:minsun@hku.hken_HK
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00126-003-0362-3en_HK
dc.identifier.scopuseid_2-s2.0-0344120801en_HK
dc.identifier.hkuros91737en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0344120801&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume38en_HK
dc.identifier.issue7en_HK
dc.identifier.spage831en_HK
dc.identifier.epage843en_HK
dc.identifier.isiWOS:000185981100003-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridSong, XY=7402269092en_HK
dc.identifier.scopusauthoridZhou, MF=7403506005en_HK
dc.identifier.scopusauthoridCao, ZM=9633826000en_HK
dc.identifier.scopusauthoridSun, M=25932315800en_HK
dc.identifier.scopusauthoridWang, YL=7601489648en_HK

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