Decratonic gold mineralization: Evidence from the Shangzhuang gold deposit, eastern North China Craton

doi:10.1016/j.gr.2017.09.009

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 > 中国科学院矿产资源研究重点实验室

	Decratonic gold mineralization: Evidence from the Shangzhuang gold deposit, eastern North China Craton
	Cai, Ya-Chun 1; Fan, Hong-Rui 1,2; Santosh, M.3,4; Hu, Fang-Fang 1,2; Yang, Kui-Feng 1,2; Li, Xian-Hua 2,5
刊名	GONDWANA RESEARCH
	2018-02-01
卷号	54 页码:1-22
关键词	Fluid Inclusion Re-os Geochronology Sims Sulfur Isotope Shangzhuang Gold Deposit Jiaodong
ISSN号	1342-937X
DOI	10.1016/j.gr.2017.09.009
文献子类	Article
英文摘要	The Jiaodong Peninsula in the eastern North China Craton (NCC) hosts some of the world-class gold deposits. Among these, the Shangzhuang gold deposit represents a typical fault-zone hosted disseminated-and stockwork-style gold mineralization. The mineralization is characterized by intense hydrothermal alteration halos in the wallrocks with the mineralized veins intruding into altered wallrocks. Zircon U-Pb isotope dating constrains the timing of emplacement of the Guojialing granodiorite as 130 +/- 1 Ma. Five molybdenite samples from the main mineralization stage veins yielded a well-fitted isochron age of 126 +/- 2 Ma (MSWD = 1.3), marking the timing of gold mineralization. Four types of fluid inclusions are identified at Shangzhuang, and their petrographic and microthermometric features suggest fluid immiscibility followed by fluid mixing. This inference is also supported by oxygen and hydrogen isotopic data of quartz veins from stage III. The measured delta O-18 values of quartz are + 12.3 to + 13.7%0 for stage II and + 11.7 to + 12.0 parts per thousand for stage III, with calculated delta O-18(fluid) values for stage II ranging from + 5.9 to + 7.3 parts per thousand. and for stage III from + 3.4 to + 3.7 parts per thousand. delta D values for stage II and III quartz range from -65.3 to -75.2 parts per thousand and -70.6 to -74.7 parts per thousand, respectively. The data suggest that the ore-forming fluids were initially derived from magmatic sources, followed by mixing with meteoric water. SIMS in-situ sulfur isotope analyses of two types of pyrite (Py I and Py II) from different mineralization stages show different sulfur isotope features. The delta S-34 values for Py I (+ 10.2 to + 113 parts per thousand, mean = + 10.8 parts per thousand, n = 25) are higher than those of the later mostly gold-related Py II (+ 4.1 to + 6.8 parts per thousand, mean = + 5.4 parts per thousand, n = 27). The higher delta S-34 values of Py I are correlated to degassing of mantle wedge metasomatized by the slab fluids. The relatively lower delta S-34 values of Py II might suggest increasing of f(o2) through fluid mixing between ore-forming fluids and meteoric water.
WOS关键词	ZIRCON U-PB ; METAMORPHIC CORE COMPLEX ; SULU OROGENIC BELT ; ORE-FORMING FLUIDS ; NORTHWESTERN JIAODONG PENINSULA ; FISSION-TRACK THERMOCHRONOMETRY ; PYRITE RB-SR ; RE-OS AGES ; SHANDONG PROVINCE ; HYDROTHERMAL ALTERATION
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000428481300001
资助机构	National Key R&D Program of China(2016YFC0600105) ; National Key R&D Program of China(2016YFC0600105) ; National Natural Science Foundation of China(41672094) ; National Natural Science Foundation of China(41672094) ; China Postdoctoral Science Foundation(2015M571113) ; China Postdoctoral Science Foundation(2015M571113) ; National Key R&D Program of China(2016YFC0600105) ; National Key R&D Program of China(2016YFC0600105) ; National Natural Science Foundation of China(41672094) ; National Natural Science Foundation of China(41672094) ; China Postdoctoral Science Foundation(2015M571113) ; China Postdoctoral Science Foundation(2015M571113) ; National Key R&D Program of China(2016YFC0600105) ; National Key R&D Program of China(2016YFC0600105) ; National Natural Science Foundation of China(41672094) ; National Natural Science Foundation of China(41672094) ; China Postdoctoral Science Foundation(2015M571113) ; China Postdoctoral Science Foundation(2015M571113) ; National Key R&D Program of China(2016YFC0600105) ; National Key R&D Program of China(2016YFC0600105) ; National Natural Science Foundation of China(41672094) ; National Natural Science Foundation of China(41672094) ; China Postdoctoral Science Foundation(2015M571113) ; China Postdoctoral Science Foundation(2015M571113)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88338]
专题	地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者	Fan, Hong-Rui
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 3.China Univ Geosci, Sch Earth Sci & Resources, 29 Xueyuan Rd, Beijing 100083, Peoples R China 4.Univ Adelaide, Dept Earth Sci, Adelaide, SA 5005, Australia 5.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Cai, Ya-Chun,Fan, Hong-Rui,Santosh, M.,et al. Decratonic gold mineralization: Evidence from the Shangzhuang gold deposit, eastern North China Craton[J]. GONDWANA RESEARCH,2018,54:1-22.
APA	Cai, Ya-Chun,Fan, Hong-Rui,Santosh, M.,Hu, Fang-Fang,Yang, Kui-Feng,&Li, Xian-Hua.(2018).Decratonic gold mineralization: Evidence from the Shangzhuang gold deposit, eastern North China Craton.GONDWANA RESEARCH,54,1-22.
MLA	Cai, Ya-Chun,et al."Decratonic gold mineralization: Evidence from the Shangzhuang gold deposit, eastern North China Craton".GONDWANA RESEARCH 54(2018):1-22.