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Olivine compositional mapping of mafic-ultramafic complexes in eastern Xinjiang (NW China): Implications for Cu-Ni mineralization and tectonic dynamics

文献类型：期刊论文

作者Su, Benxun1; Qin, Kezhang1; Sun, He1; Tang, Dongmei1; Xiao, Qinghua1; Liu, Pingping1; Sakyi, Patrick Asamoah2
刊名JOURNAL OF EARTH SCIENCE
出版日期2012-02-01
卷号23期号:1页码:41-53
关键词mafic-ultramafic complex olivine compositional mapping Ni-Cu sulfide mineralization Beishan Mid-Tianshan massif Jueluotage belt
ISSN号1674-487X
DOI10.1007/s12583-012-0232-y
文献子类Article
英文摘要Early Permian mafic-ultramafic complexes in eastern Xinjiang (ae-degrees c-dagger) are mainly distributed in the Beishan (aOEua +/-+/-) area, Mid-Tianshan (acurrency sign (c) a +/-+/-) massif and Jueluotage (e parts per thousand c1/2ua"ae 1/4) belt. Systematic compositional mapping of olivines from these Early Permian mafic-ultramafic complexes demonstrates that an apparently spatial distribution and heterogeneous partial melting in the mantle source exists from the Beishan area, across the Mid-Tianshan massif, to the Jueluotage belt from the south to the north. This is probably consistent with the spatial evolutional differences and tectonic features of these three belts. The decreasing degree of partial melting, as revealed by decreasing Fo contents of olivines, from south to north and from east to west reflects the southward subduction of the Paleo-Asian Ocean and the south location of the indistinct mantle plume in the Permian. Simultaneously, NiO and Fo-mapping in olivine also indicates that sulfide segregation before olivine crystallization played an important role in Ni-Cu mineralization in the mafic-ultramafic complexes. Olivines with the compositional range of Fo (77-86) and NiO (less than 0.22 wt.%) are more favorable for Ni-Cu sulfide mineralization.
WOS关键词ASIAN OROGENIC BELT ; LITHOSPHERIC MANTLE ; SULFIDE DEPOSITS ; CONTINENTAL GROWTH ; BEISHAN AREA ; GEOCHEMICAL CHARACTERISTICS ; FRACTIONAL CRYSTALLIZATION ; PRINCIPAL CHARACTERISTICS ; PARTITION-COEFFICIENTS ; TAIHANG MOUNTAINS
WOS研究方向Geology
语种英语
WOS记录号WOS:000299376100004
出版者CHINA UNIV GEOSCIENCES
资助机构National Natural Science Foundation of China(41030424 ; National Natural Science Foundation of China(41030424 ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 41173011) ; 41173011) ; National Natural Science Foundation of China(41030424 ; National Natural Science Foundation of China(41030424 ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 41173011) ; 41173011) ; National Natural Science Foundation of China(41030424 ; National Natural Science Foundation of China(41030424 ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 41173011) ; 41173011) ; National Natural Science Foundation of China(41030424 ; National Natural Science Foundation of China(41030424 ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 41173011) ; 41173011)
源URL[http://ir.iggcas.ac.cn/handle/132A11/84470]  
专题中国科学院地质与地球物理研究所
通讯作者Su, Benxun
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Univ Ghana, Dept Geol, Legon, Ghana
推荐引用方式
GB/T 7714		 Su, Benxun,Qin, Kezhang,Sun, He,et al. Olivine compositional mapping of mafic-ultramafic complexes in eastern Xinjiang (NW China): Implications for Cu-Ni mineralization and tectonic dynamics[J]. JOURNAL OF EARTH SCIENCE,2012,23(1):41-53.
APA Su, Benxun.,Qin, Kezhang.,Sun, He.,Tang, Dongmei.,Xiao, Qinghua.,...&Sakyi, Patrick Asamoah.(2012).Olivine compositional mapping of mafic-ultramafic complexes in eastern Xinjiang (NW China): Implications for Cu-Ni mineralization and tectonic dynamics.JOURNAL OF EARTH SCIENCE,23(1),41-53.
MLA Su, Benxun,et al."Olivine compositional mapping of mafic-ultramafic complexes in eastern Xinjiang (NW China): Implications for Cu-Ni mineralization and tectonic dynamics".JOURNAL OF EARTH SCIENCE 23.1(2012):41-53.

入库方式： OAI收割

来源：地质与地球物理研究所

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