Cenozoic basalts in SE China: Chalcophile element geochemistry, sulfide saturation history, and source heterogeneity

doi:10.1016/j.lithos.2017.03.016

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

	Cenozoic basalts in SE China: Chalcophile element geochemistry, sulfide saturation history, and source heterogeneity
	Huang, Xiao-Wen 1; Su, Ben-Xun 2; Zhou, Mei-Fu 3; Gao, Jian-Feng 1; Qi, Liang 1,4
刊名	LITHOS
	2017-06-01
卷号	282 页码:215-227
关键词	Platinum-group Element (Pge) Sulfur-saturation Heterogeneous Mantle Source Cenozoic Basalt Se China
ISSN号	0024-4937
DOI	10.1016/j.lithos.2017.03.016
文献子类	Article
英文摘要	Cenozoic basalts in SE China may be derived from a mixture of depleted MORB mantle (DMM) and enriched mantle 2 (EM2) sources, but whether these basalts share a common mantle source or magmatic history remains unknown. To investigate these unresolved issues, this study sampled basalts from Niutoushan and Mingxi (Fujian province), Xilong (Zhejiang province), and Penghu (Taiwan) for geochemical analysis. The basalt samples show OIB-like trace element patterns and have low PGE contents, with 0.02-0.7 ppb Ir and Pd, 0.05-1.4 ppb Ru, 0.01-0.2 ppb Rh, and 0.06-1.1 ppb Pt. All samples have high Cu/Pd ratios ranging from similar to 69,000 to 3,500,000, and low Cu/Zr ratios ranging from 0.1 to 0.8, suggesting sulfur-saturated fractionation. Model calculations indicate that the basalts are depleted in PGE due to the retention of 0.001% to 0.1% sulfide in the mantle and the removal of up to 0.0022% sulfide during magma ascent. The crystallization of olivine and spinet, and partial melting are insufficient to account for the observed PGE variation in these basalts. Thus, the distinct PGE patterns in basalts with different ages may reflect the heterogeneity of the mantle source beneath SE China. The source heterogeneity may be due to compositional heterogeneity, particularly variations in oxygen fugacity and PGE mineral phases, or due to variable fluid/melt metasomatic agents in the sub-continental lithospheric mantle. This heterogeneity is possibly related to the westward subduction of the Paleo-Pacific Plate. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	PLATINUM-GROUP ELEMENTS ; LITHOSPHERIC MANTLE BENEATH ; SOUTH CHINA ; TRACE-ELEMENT ; EASTERN CHINA ; SW CHINA ; VOLCANIC-ROCKS ; FLOOD BASALTS ; PERIDOTITIC XENOLITHS ; CRUSTAL CONTAMINATION
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000401388100016
资助机构	Research Grant Council of Hong Kong(HKU706413P) ; State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, China(201403) ; Youth Innovation Promotion Association, Chinese Academy of Sciences, China(2016067) ; Research Grant Council of Hong Kong(HKU706413P) ; State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, China(201403) ; Youth Innovation Promotion Association, Chinese Academy of Sciences, China(2016067) ; Research Grant Council of Hong Kong(HKU706413P) ; State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, China(201403) ; Youth Innovation Promotion Association, Chinese Academy of Sciences, China(2016067) ; Research Grant Council of Hong Kong(HKU706413P) ; State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, China(201403) ; Youth Innovation Promotion Association, Chinese Academy of Sciences, China(2016067)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/52949]
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	Zhou, Mei-Fu
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 4.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China
推荐引用方式 GB/T 7714	Huang, Xiao-Wen,Su, Ben-Xun,Zhou, Mei-Fu,et al. Cenozoic basalts in SE China: Chalcophile element geochemistry, sulfide saturation history, and source heterogeneity[J]. LITHOS,2017,282:215-227.
APA	Huang, Xiao-Wen,Su, Ben-Xun,Zhou, Mei-Fu,Gao, Jian-Feng,&Qi, Liang.(2017).Cenozoic basalts in SE China: Chalcophile element geochemistry, sulfide saturation history, and source heterogeneity.LITHOS,282,215-227.
MLA	Huang, Xiao-Wen,et al."Cenozoic basalts in SE China: Chalcophile element geochemistry, sulfide saturation history, and source heterogeneity".LITHOS 282(2017):215-227.