A comprehensive overview on the origin of intrusive rocks and polymetallic mineralization in the Tongling ore-cluster region, lower Yangtze River Metallogenic Belt: Geological and geochemical constraints

doi:10.1016/j.oregeorev.2021.104625

	A comprehensive overview on the origin of intrusive rocks and polymetallic mineralization in the Tongling ore-cluster region, lower Yangtze River Metallogenic Belt: Geological and geochemical constraints
	Wang, Yu 1; Yang, Xiaoyong 1,2; Deng, Jianghong 3; Liu, Shasha 1,4; Sun, Chao 1; Hou, Qi 1; Wang, Luojian 1
	2022-02-01
发表期刊	ORE GEOLOGY REVIEWS
ISSN	0169-1368
卷号	141 页码:23
通讯作者	Yang, Xiaoyong([email protected]) ; Deng, Jianghong([email protected])
摘要	The Tongling ore-cluster region is one of the most important Cu-Au polymetallic producers in the famous Lower Yangtze River Metallogenic Belt (LYRMB) in eastern China. The Cu-Au polymetallic ore deposits can be divided into four types, i.e., skarn, strata-bound hydrothermal, porphyry, and cryptobreccia, closely related to the Late Jurassic to Early Cretaceous magmatism. We summarize the geology of the Mesozoic Cu-Au deposits in Tongling, eastern China, and revisit the age distributions and geochemical characteristics of associated Mesozoic intrusions, by integrating a large number of published geochemical data (including major and trace elements for both early-stage and late-stage intrusions, whole-rock Sr-Nd-Pb isotopes, and zircon U-Pb age and Hf isotopes for early-stage intrusions), to reveal their sources and genesis. According to the U-Pb ages of intrusions, the main magmatic events in the area can be divided into two stages, i.e., 152-135 Ma and 135-124 Ma, respectively. The early-stage magmatism mainly produced Cu-Au mineralization-related dioritic intrusions, including pyroxene diorite-pyroxene monzodiorite, quartz diorite-quartz monzodiorite, and granodiorite, showing unobvious geochronological order. Geochemical data of Late Jurassic-Early Cretaceous intrusions from the early-stage magmatism suggest that they are all derived from a similar source composed of different proportions of slab-derived melt, metasomatized lithospheric mantle, and a lesser content of lower crust materials. Among them, the key differences lie in that more lower crust materials are incorporated in the source of intermediate-felsic rocks compared to intermediate-basic rocks. The late-stage magmatism produced a wide variety of rocks (diorite porphyry, syenite porphyry, granite porphyry, monzonite, and granite porphyry), which are related to Pb-Zn deposits. The late-stage igneous rocks may evolve from the early-stage rocks and have experienced fractional crystallization of apatite, ilmenite, and other minerals. Both early and late-stage magmatic events in the Tongling region were formed in the subduction setting, and corresponding to compression and extensional setting, respectively. Besides, the H-O isotopes of different kinds of minerals suggest that the ore-forming fluids of most ore deposits were mainly derived from the magma and mixed with a small amount of meteoric water in the late-stage mineralization. The S isotopes of sulfides show that the ore-forming materials come from the magma, accompanied by the addition of original sediments.
关键词	Magmatism Petrogenesis Cu-Au deposit Metallogenesis Tongling ore-cluster region Lower Yangtze River metallogenic belt
DOI	10.1016/j.oregeorev.2021.104625
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42030801]; National Natural Science Foundation of China[42011540384]; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-3]
WOS研究方向	Geology ; Mineralogy ; Mining & Mineral Processing
WOS类目	Geology ; Mineralogy ; Mining & Mineral Processing
WOS记录号	WOS:000766758500001
出版者	ELSEVIER
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/178147
专题	深海极端环境与生命过程研究中心
通讯作者	Yang, Xiaoyong; Deng, Jianghong
作者单位	1.Univ Sci & Technol China, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China 2.CAS Ctr Excellence Comparat Planetol, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 4.Bur Geol & Mineral Explorat Anhui Prov, Geol Team 321, Tongling 244033, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Wang, Yu,Yang, Xiaoyong,Deng, Jianghong,et al. A comprehensive overview on the origin of intrusive rocks and polymetallic mineralization in the Tongling ore-cluster region, lower Yangtze River Metallogenic Belt: Geological and geochemical constraints[J]. ORE GEOLOGY REVIEWS,2022,141:23.
APA	Wang, Yu.,Yang, Xiaoyong.,Deng, Jianghong.,Liu, Shasha.,Sun, Chao.,...&Wang, Luojian.(2022).A comprehensive overview on the origin of intrusive rocks and polymetallic mineralization in the Tongling ore-cluster region, lower Yangtze River Metallogenic Belt: Geological and geochemical constraints.ORE GEOLOGY REVIEWS,141,23.
MLA	Wang, Yu,et al."A comprehensive overview on the origin of intrusive rocks and polymetallic mineralization in the Tongling ore-cluster region, lower Yangtze River Metallogenic Belt: Geological and geochemical constraints".ORE GEOLOGY REVIEWS 141(2022):23.

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