Platinum-Group Mineral Occurrences and Platinum-Group Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt

doi:10.3390/min8110494

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 > 岩石圈演化国家重点实验室

	Platinum-Group Mineral Occurrences and Platinum-Group Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt
	Yang, Sai-Hong 1,2; Su, Ben-Xun 2,3; Huang, Xiao-Wen 4; Tang, Dong-Mei 2; Qin, Ke-Zhang 2,3; Bai, Yang 2,3; Sakyi, Patrick Asamoah 5; Alemayehu, Melesse 1,6
刊名	MINERALS
	2018-11-01
卷号	8 期号:11 页码:18
关键词	Alaskan-type complex Central Asian Orogenic Belt PGM PGE mineralization
ISSN号	2075-163X
DOI	10.3390/min8110494
英文摘要	Alaskan-type complexes commonly contain primary platinum-group element (PGE) alloys and lack base-metal sulfides in their dunite and chromite-bearing rocks. They could therefore host PGE deposits with rare sulfide mineralization. A detailed scanning electron microscope investigation on dunites from the Xiadong Alaskan-type complex in the southern Central Asian Orogenic Belt revealed: various occurrences of platinum-group minerals (PGMs) that are dominated by inclusions in chromite grains containing abundant Ru, Os, S and a small amount of Pd and Te, indicating that they mainly formed prior to or simultaneously with the crystallization of the host minerals; A few Os-Ir-Rurich phases with iridium/platinum-group element (IPGE) alloy, anduoite (Ru,Ir,Ni)(As,S)(2-x) and irarsite (IrAsS) were observed in chromite fractures, and as laurite (RuS2) in clinopyroxene, which was likely related to late-stage hydrothermal alteration. The rocks in the Xiadong complex display large PGE variations with Sigma PGE of 0.38-112 ppb. The dunite has the highest PGE concentrations (8.69-112 ppb), which is consistent with the presence of PGMs. Hornblende clinopyroxenite, hornblendite and hornblende gabbro were all depleted in PGEs, indicating that PGMs were likely already present at an early phase of magma and were mostly collected afterward in dunites during magma differentiation. Compared with the regional mafic-ultramafic intrusions in Eastern Tianshan, the Xiadong complex show overall higher average PGE concentration. This is consistent with the positive PGE anomalies revealed by regional geochemical surveys. The Xiadong complex, therefore, has potential for PGE exploration.
资助项目	National Natural Science Foundation of China[41522203] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2016067] ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences[KLMR2017-04]
WOS关键词	MAFIC-ULTRAMAFIC INTRUSIONS ; CU SULFIDE MINERALIZATION ; NW CHINA IMPLICATIONS ; PGE MINERALIZATION ; EASTERN TIANSHAN ; PLACER DEPOSITS ; KOLA-PENINSULA ; MERENSKY REEF ; NI DEPOSIT ; OS-IR
WOS研究方向	Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	MDPI
WOS记录号	WOS:000451530500021
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/89621]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Yang, Sai-Hong; Sakyi, Patrick Asamoah
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Guizhou, Peoples R China 5.Univ Ghana, Dept Earth Sci, POB LG 58, Legon 00233, Ghana 6.Adama Sci & Technol Univ, Sch Appl Nat Sci, Dept Appl Geol, POB 1888, Adama 00251, Ethiopia
推荐引用方式 GB/T 7714	Yang, Sai-Hong,Su, Ben-Xun,Huang, Xiao-Wen,et al. Platinum-Group Mineral Occurrences and Platinum-Group Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt[J]. MINERALS,2018,8(11):18.
APA	Yang, Sai-Hong.,Su, Ben-Xun.,Huang, Xiao-Wen.,Tang, Dong-Mei.,Qin, Ke-Zhang.,...&Alemayehu, Melesse.(2018).Platinum-Group Mineral Occurrences and Platinum-Group Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt.MINERALS,8(11),18.
MLA	Yang, Sai-Hong,et al."Platinum-Group Mineral Occurrences and Platinum-Group Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt".MINERALS 8.11(2018):18.