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Experimental study of high to intermediate temperature alteration in porphyry copper systems and geological implications
Li, Jianping1,2; Chen, Huayong1; Su, Long3; Xiao, Bing1; Wang, Yunfeng1,2
2019-03-01
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume62Issue:3Pages:550-570
AbstractPorphyry 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.
KeywordPorphyry copper deposit Fluid-rock interactions Flowing systems Elements transport mechanism
DOI10.1007/s11430-018-9295-1
Funding OrganizationNational 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
WOS KeywordMAGMATIC-HYDROTHERMAL FLUIDS ; CU-MO DEPOSIT ; LA-ICP-MS ; GOLD MINERALIZATION ; MOLYBDENUM DEPOSIT ; CHEMICAL AFFINITY ; DISSOLUTION RATES ; ALKALI FELDSPAR ; MASS-TRANSFER ; BINGHAM
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000460181500004
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90918
Collection兰州油气中心
Corresponding AuthorChen, Huayong; Su, Long
Affiliation1.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
Recommended Citation
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.
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