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Article: Genetic links of magmatic deposits in the Emeishan large igneous province with the dynamics of a mantle plume
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TitleGenetic links of magmatic deposits in the Emeishan large igneous province with the dynamics of a mantle plume
 
AuthorsSong, XY1 3
Zhang, CJ3
Hu, RZ1
Zhong, H1
Zhou, MF2
Ma, RZ3
Li, YG3
 
KeywordsDynamic Process
Magmatic Deposits
Mantle Plume
The Emeishan Igneous Province
 
Issue Date2005
 
CitationKuangwu Yanshi, 2005, v. 25 n. 4, p. 35-44 [How to Cite?]
 
AbstractThe Emeishan large igneous province in the western Yangtze Block was resulted from a mantle plume at end of the Middle Permian. Four super-large V-Ti-magnetite deposits and 10 large-medium Ni-Cu-(PGE) sulfide deposits have been explored in the Emeishan large igneous province. Precise age data indicated that these ore-bearing mafic-ultramafic intrusions were produced by the same mantle plume that caused the Emeishan flood basalts at 260 Ma±. The maficultramafic intrusion hosting V-Ti-magnetite deposits and Ni-Cu-(PGE) sulfide deposits are distinguished in localization, scale, rock-assemblages, components of rock-forming minerals. The Emeishan large province can be divided to Inner- and Outer-Zones. The Inner-Zone is marked by large thickness of the Emeishan flood basalts, large layered intrusions, mafic-ultrmafic intrusive bodies, low-Ti basalts, alkaline intrusions, and various mineralizations related to the mantle plume. The basalts become thinner and consist of high-Ti basalts in the Outer-Zone where fewer mafic-ultramafic bodies are exposed. Special and geochemical relationship between the two type of magmatic deposits and high- and low-Ti basalts,the study on petrogenetic links between the Ni-Cu-(PGE) sulfide deposits and the Emeishan flood basalts in the Yangliuping area indicate that the magmatic deposits formed in different dynamic stages of the mantle plume. The V-Ti-magnetite deposits are associated with the high-Ti basaltic magmas and related to fractional crystallization. In contrast, the Ni-Cu-(PGE) sulfide mineralization may be related to either the high- or low-Ti basaltic magmas and controlled by three factors: high degree partial melting of upper mantle, contamination of the lower crust, and fractional crystallization. The Ni-Cu-(PGE) sulfide deposits were formed earlier than the V-Ti-magnetite deposits.
 
ISSN1001-6872
2013 SCImago Journal Rankings: 0.162
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorSong, XY
 
dc.contributor.authorZhang, CJ
 
dc.contributor.authorHu, RZ
 
dc.contributor.authorZhong, H
 
dc.contributor.authorZhou, MF
 
dc.contributor.authorMa, RZ
 
dc.contributor.authorLi, YG
 
dc.date.accessioned2012-06-26T06:18:19Z
 
dc.date.available2012-06-26T06:18:19Z
 
dc.date.issued2005
 
dc.description.abstractThe Emeishan large igneous province in the western Yangtze Block was resulted from a mantle plume at end of the Middle Permian. Four super-large V-Ti-magnetite deposits and 10 large-medium Ni-Cu-(PGE) sulfide deposits have been explored in the Emeishan large igneous province. Precise age data indicated that these ore-bearing mafic-ultramafic intrusions were produced by the same mantle plume that caused the Emeishan flood basalts at 260 Ma±. The maficultramafic intrusion hosting V-Ti-magnetite deposits and Ni-Cu-(PGE) sulfide deposits are distinguished in localization, scale, rock-assemblages, components of rock-forming minerals. The Emeishan large province can be divided to Inner- and Outer-Zones. The Inner-Zone is marked by large thickness of the Emeishan flood basalts, large layered intrusions, mafic-ultrmafic intrusive bodies, low-Ti basalts, alkaline intrusions, and various mineralizations related to the mantle plume. The basalts become thinner and consist of high-Ti basalts in the Outer-Zone where fewer mafic-ultramafic bodies are exposed. Special and geochemical relationship between the two type of magmatic deposits and high- and low-Ti basalts,the study on petrogenetic links between the Ni-Cu-(PGE) sulfide deposits and the Emeishan flood basalts in the Yangliuping area indicate that the magmatic deposits formed in different dynamic stages of the mantle plume. The V-Ti-magnetite deposits are associated with the high-Ti basaltic magmas and related to fractional crystallization. In contrast, the Ni-Cu-(PGE) sulfide mineralization may be related to either the high- or low-Ti basaltic magmas and controlled by three factors: high degree partial melting of upper mantle, contamination of the lower crust, and fractional crystallization. The Ni-Cu-(PGE) sulfide deposits were formed earlier than the V-Ti-magnetite deposits.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationKuangwu Yanshi, 2005, v. 25 n. 4, p. 35-44 [How to Cite?]
 
dc.identifier.epage44
 
dc.identifier.issn1001-6872
2013 SCImago Journal Rankings: 0.162
 
dc.identifier.issue4
 
dc.identifier.scopuseid_2-s2.0-33644825937
 
dc.identifier.spage35
 
dc.identifier.urihttp://hdl.handle.net/10722/151180
 
dc.identifier.volume25
 
dc.languageeng
 
dc.relation.ispartofKuangwu Yanshi
 
dc.relation.referencesReferences in Scopus
 
dc.subjectDynamic Process
 
dc.subjectMagmatic Deposits
 
dc.subjectMantle Plume
 
dc.subjectThe Emeishan Igneous Province
 
dc.titleGenetic links of magmatic deposits in the Emeishan large igneous province with the dynamics of a mantle plume
 
dc.typeArticle
 
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<contributor.author>Zhou, MF</contributor.author>
<contributor.author>Ma, RZ</contributor.author>
<contributor.author>Li, YG</contributor.author>
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<description.abstract>The Emeishan large igneous province in the western Yangtze Block was resulted from a mantle plume at end of the Middle Permian. Four super-large V-Ti-magnetite deposits and 10 large-medium Ni-Cu-(PGE) sulfide deposits have been explored in the Emeishan large igneous province. Precise age data indicated that these ore-bearing mafic-ultramafic intrusions were produced by the same mantle plume that caused the Emeishan flood basalts at 260 Ma&#177;. The maficultramafic intrusion hosting V-Ti-magnetite deposits and Ni-Cu-(PGE) sulfide deposits are distinguished in localization, scale, rock-assemblages, components of rock-forming minerals. The Emeishan large province can be divided to Inner- and Outer-Zones. The Inner-Zone is marked by large thickness of the Emeishan flood basalts, large layered intrusions, mafic-ultrmafic intrusive bodies, low-Ti basalts, alkaline intrusions, and various mineralizations related to the mantle plume. The basalts become thinner and consist of high-Ti basalts in the Outer-Zone where fewer mafic-ultramafic bodies are exposed. Special and geochemical relationship between the two type of magmatic deposits and high- and low-Ti basalts,the study on petrogenetic links between the Ni-Cu-(PGE) sulfide deposits and the Emeishan flood basalts in the Yangliuping area indicate that the magmatic deposits formed in different dynamic stages of the mantle plume. The V-Ti-magnetite deposits are associated with the high-Ti basaltic magmas and related to fractional crystallization. In contrast, the Ni-Cu-(PGE) sulfide mineralization may be related to either the high- or low-Ti basaltic magmas and controlled by three factors: high degree partial melting of upper mantle, contamination of the lower crust, and fractional crystallization. The Ni-Cu-(PGE) sulfide deposits were formed earlier than the V-Ti-magnetite deposits.</description.abstract>
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Author Affiliations
  1. Institute of Geochemistry Chinese Academy of Sciences
  2. The University of Hong Kong
  3. Chengdu University of Technology