Pyrite textures and compositions from the Zhuangzi Au deposit, southeastern North China Craton: implication for ore-forming processes

doi:10.1007/s00410-018-1501-2

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

	Pyrite textures and compositions from the Zhuangzi Au deposit, southeastern North China Craton: implication for ore-forming processes
	Li, Xing-Hui 1,2,4; Fan, Hong-Rui 1,2,3; Yang, Kui-Feng 1,2,3; Hollings, Pete 4; Liu, Xuan 1,3; Hu, Fang-Fang 1,2,3; Cai, Ya-Chun 1
刊名	CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
	2018-09-01
卷号	173 期号:9
关键词	Pyrite As-Au-Cu Sulfur isotope Fluid inclusion Monazite NanoSIMS mapping
ISSN号	0010-7999
DOI	10.1007/s00410-018-1501-2
文献子类	Article
英文摘要	The Zhuangzi Au deposit in the world-class Jiaodong gold province hosts visible natural gold, and pyrite as the main ore mineral, making it an excellent subject for deciphering the complex hydrothermal processes and mechanisms of gold precipitation. Three types of zoned pyrite crystals were distinguished based on textural and geochemical results from EPMA, SIMS sulfur isotopic analyses and NanoSIMS mapping. Py0 has irregular shapes and abundant silicate inclusions and was contemporaneous with the earliest pyrite-sericite-quartz alteration. It has low concentrations of As (0-0.3 wt.%), Au and Cu. Py1 precipitated with stage I mineralization shows oscillatory zoning with the bright bands having high As (0.4-3.9 wt.%), Au and Cu contents, whereas the dark bands have low contents of As (0-0.4 wt.%), Au and Cu. The oscillatory zoning represents pressure fluctuations and repeated local fluid phase separation around the pyrite crystal. The concentration of invisible gold in Py1 is directly proportional to the arsenic concentration. Py1 is partially replaced by Py2 which occurs with arsenopyrite, chalcopyrite and native gold in stage II. The replacement was likely the result of pseudomorphic dissolution-reprecipitation triggered by a new pulse of Au-rich hydrothermal fluids. The delta S-34 values for the three types of pyrite are broadly similar ranging from + 7.1 to + 8.8aEuro degrees, suggesting a common sulfur source. Fluid inclusion microthermometry suggests that extensive phase separation was responsible for the gold deposition during stage II mineralization. Uranium-Pb dating of monazite constrains the age of mineralization to ca. 119 Ma coincident with a short compressional event around 120 Ma linked to an abrupt change in the drift direction of the subducting Pacific plate.
WOS关键词	HOSTED GOLD MINERALIZATION ; BEARING ARSENIAN PYRITE ; SULU OROGENIC BELT ; ZIRCON U-PB ; JIAODONG PENINSULA ; SULFUR ISOTOPE ; SANSHANDAO DEPOSIT ; INVISIBLE GOLD ; TRACE-ELEMENTS ; DEGREES-C
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000441453000001
资助机构	National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Key Research and Development Program(2016YFC0600105) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080) ; National Natural Science Foundation of China(41772080)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88156]
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 & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 4.Lakehead Univ, Geol Dept, Thunder Bay, ON P7B 5E1, Canada
推荐引用方式 GB/T 7714	Li, Xing-Hui,Fan, Hong-Rui,Yang, Kui-Feng,et al. Pyrite textures and compositions from the Zhuangzi Au deposit, southeastern North China Craton: implication for ore-forming processes[J]. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,2018,173(9).
APA	Li, Xing-Hui.,Fan, Hong-Rui.,Yang, Kui-Feng.,Hollings, Pete.,Liu, Xuan.,...&Cai, Ya-Chun.(2018).Pyrite textures and compositions from the Zhuangzi Au deposit, southeastern North China Craton: implication for ore-forming processes.CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,173(9).
MLA	Li, Xing-Hui,et al."Pyrite textures and compositions from the Zhuangzi Au deposit, southeastern North China Craton: implication for ore-forming processes".CONTRIBUTIONS TO MINERALOGY AND PETROLOGY 173.9(2018).