Experimental study of high to intermediate temperature alteration in porphyry copper systems and geological implications

doi:10.1007/s11430-018-9295-1

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 > 兰州油气中心

	Experimental study of high to intermediate temperature alteration in porphyry copper systems and geological implications
	Li, Jianping 1,2; Chen, Huayong 1; Su, Long 3; Xiao, Bing 1; Wang, Yunfeng 1,2
刊名	SCIENCE CHINA-EARTH SCIENCES
	2019-03-01
卷号	62 期号:3 页码:550-570
关键词	Porphyry copper deposit Fluid-rock interactions Flowing systems Elements transport mechanism
ISSN号	1674-7313
DOI	10.1007/s11430-018-9295-1
英文摘要	Porphyry copper systems, which provide most of the world's copper resource, are commonly associated with characteristic concentric zonation of alteration and mineralization. In-depth knowledge of the distribution and transport mechanism of elements in the alteration zones is essential for understanding the ore-forming processes. We employed flow-reaction apparatus to simulate the fluid-rock interactions during porphyry ore formation so as to investigate the mechanisms that govern the transport of elements and the development of zonation. The results indicate more heterogeneous distribution of elements in the experimental products at 450 degrees C compared to those at lower temperatures, which implies a crucial role of temperature in controlling elements redistribution in hydrothermal systems. Heating advances potassic alteration and Ca leaching of wall rocks. To achieve the same degree of sodic alteration, it requires a higher concentration of Na+ in the fluid toward higher temperature. Temperature also facilitates the incorporation of Ti, Sr and Pb into silicate minerals through cation substitution. We infer from experimental results that from the center of intermediate to mafic volcanic wall rocks toward periphery, the contents of K and Ti should decrease and the contents of Ca, Zn and Mn should increase, whereas the trend for Si and Na could be non-monotonic. This study provides experimental and theoretical insights into a variety of vital geological observations, including anhydrite formation and the widespread development of potassic rather than sodic alteration in porphyry copper deposits.
资助项目	National Natural Science Foundation of China[U1603244] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB1803206] ; Science and Technology Planning Project of Guangdong Province[2017B030314175]
WOS关键词	MAGMATIC-HYDROTHERMAL FLUIDS ; CU-MO DEPOSIT ; LA-ICP-MS ; GOLD MINERALIZATION ; MOLYBDENUM DEPOSIT ; CHEMICAL AFFINITY ; DISSOLUTION RATES ; ALKALI FELDSPAR ; MASS-TRANSFER ; BINGHAM
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000460181500004
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province ; Science and Technology Planning Project of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province ; Science and Technology Planning Project of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province ; Science and Technology Planning Project of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province ; Science and Technology Planning Project of Guangdong Province
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90918]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Chen, Huayong; Su, Long
作者单位	1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Mineral Phys & Mat, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Gansu Prov Key Lab Petr Resources Res, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Jianping,Chen, Huayong,Su, Long,et al. Experimental study of high to intermediate temperature alteration in porphyry copper systems and geological implications[J]. SCIENCE CHINA-EARTH SCIENCES,2019,62(3):550-570.
APA	Li, Jianping,Chen, Huayong,Su, Long,Xiao, Bing,&Wang, Yunfeng.(2019).Experimental study of high to intermediate temperature alteration in porphyry copper systems and geological implications.SCIENCE CHINA-EARTH SCIENCES,62(3),550-570.
MLA	Li, Jianping,et al."Experimental study of high to intermediate temperature alteration in porphyry copper systems and geological implications".SCIENCE CHINA-EARTH SCIENCES 62.3(2019):550-570.