Late Paleozoic mafic-ultramafic intrusions in southern Central Asian Orogenic Belt (NW China): Insight into magmatic Ni-Cu sulfide mineralization in orogenic setting

doi:10.1016/j.oregeorev.2012.11.007

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院矿产资源研究重点实验室

	Late Paleozoic mafic-ultramafic intrusions in southern Central Asian Orogenic Belt (NW China): Insight into magmatic Ni-Cu sulfide mineralization in orogenic setting
	Su, Ben-Xun 1; Qin, Ke-Zhang 1; Tang, Dong-Mei 1; Sakyi, Patrick Asamoah 2; Liu, Ping-Ping 1; Sun, He 1; Xiao, Qing-Hua 1
刊名	ORE GEOLOGY REVIEWS
	2013-06-01
卷号	51 页码:57-73
关键词	Central Asian Orogenic Belt Mafic-ultramafic Intrusion Ni-cu Sulfide Mineralization Crustal Contamination Subduction-modified Mantle Source
DOI	10.1016/j.oregeorev.2012.11.007
文献子类	Review
英文摘要	The mafic-ultramafic intrusions hosting magmatic Ni-Cu sulfide ore deposits, usually present within the Precambrian cratons and on their margin, have been extensively studied, whereas those occurring within the Phanerozoic orogenic belts have received little attention. The southern margin of the Central Asian Orogenic Belt is a region of late Paleozoic mafic-ultramafic intrusions emplaced during post-orogenic stage. In order to recognize the mineralization features, this study compares barren or weakly mineralized mafic-ultramafic intrusions in the Beishan with those hosting Ni-Cu sulfide ore deposit in the Altay and Eastern Tianshan in petrology, mineralogy and geochemistry aspects. Several mineralization features can be recognized with respects to petrology, mineralogy and geochemistry from comprehensive comparisons. Among the mineralization indicators, we highlight strong alteration accompanying sulfide emplacement, post-erosion exposure of magma conduit, abundant primary hydrous minerals and potential transportation mechanism of ore-forming elements. Other indicators are the presence of orthopyroxene and pyroxenite for potential sulfide formation through crystal fractionation, restricted Fo and Ni ranges in olivines for sulfide segregation, and some other special geochemical characteristics related to crustal contamination. The variation in mineralization could be ascribed to different degrees of partial melting, crustal assimilation and subduction-related modification of a mantle source. We suggest that the Ni-Cu sulfide mineralization of mafic-ultramafic intrusions within orogenic belts is remarkably different from that of cratonic and continental marginal settings in respects of petrogenesis and mineralizing mechanism. Magmatic conduit-type Ni-Cu sulfide ore deposit is a target for future prospecting and exploration for mafic-ultramafic intrusions in the orogenic belts. (C) 2012 Elsevier B.V. All rights reserved.
WOS关键词	ZIRCON U-PB ; ORE-FORMING PROCESSES ; EASTERN TIANSHAN ; CONTINENTAL GROWTH ; BEISHAN AREA ; NORTHERN XINJIANG ; NORTHWEST CHINA ; SW CHINA ; FRACTIONAL CRYSTALLIZATION ; COMPOSITIONAL VARIATIONS
WOS研究方向	Geology ; Mineralogy ; Mining & Mineral Processing
语种	英语
WOS记录号	WOS:000315015800005
资助机构	National Natural Science Foundation of China(41030424 ; National Natural Science Foundation of China(41030424 ; Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-YW-107) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-YW-107) ; 41173011) ; 41173011) ; National Natural Science Foundation of China(41030424 ; National Natural Science Foundation of China(41030424 ; Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-YW-107) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-YW-107) ; 41173011) ; 41173011)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62634]
专题	地质与地球物理研究所_中国科学院矿产资源研究重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Ghana, Dept Earth Sci, Legon, Ghana
推荐引用方式 GB/T 7714	Su, Ben-Xun,Qin, Ke-Zhang,Tang, Dong-Mei,et al. Late Paleozoic mafic-ultramafic intrusions in southern Central Asian Orogenic Belt (NW China): Insight into magmatic Ni-Cu sulfide mineralization in orogenic setting[J]. ORE GEOLOGY REVIEWS,2013,51:57-73.
APA	Su, Ben-Xun.,Qin, Ke-Zhang.,Tang, Dong-Mei.,Sakyi, Patrick Asamoah.,Liu, Ping-Ping.,...&Xiao, Qing-Hua.(2013).Late Paleozoic mafic-ultramafic intrusions in southern Central Asian Orogenic Belt (NW China): Insight into magmatic Ni-Cu sulfide mineralization in orogenic setting.ORE GEOLOGY REVIEWS,51,57-73.
MLA	Su, Ben-Xun,et al."Late Paleozoic mafic-ultramafic intrusions in southern Central Asian Orogenic Belt (NW China): Insight into magmatic Ni-Cu sulfide mineralization in orogenic setting".ORE GEOLOGY REVIEWS 51(2013):57-73.