Geology, isotopes and geochronology of the Caijiaping Pb-Zn deposit in the North Wuyi area, South China: Implications for petrogenesis and metallogenesis

doi:10.1016/j.oregeorev.2013.09.015

	Geology, isotopes and geochronology of the Caijiaping Pb-Zn deposit in the North Wuyi area, South China: Implications for petrogenesis and metallogenesis
	Dai, Yanpei 1; Yu, Xinqi 2; Zhang, Lianchang 1; Cao, Wentao 3; Zhu, Yudi 2; Li, Chunlin 4
刊名	ORE GEOLOGY REVIEWS
	2014-03-01
卷号	57 页码:116-131
关键词	S-Pb-Hf isotopes Zircon U-Pb dating Ar-40/Ar-39 dating Ore genesis Wuyi metamorphosed basement
ISSN号	0169-1368
DOI	10.1016/j.oregeorev.2013.09.015
文献子类	Review
英文摘要	The Caijiaping Pb-Zn deposit is a recently discovered subvolcanic hydrothermal deposit in the North Wuyi area. Its mineralization is generally distributed at the contact of rhyolite porphyry and sandstone, and in the interlayer crushed zone of Early Jurassic sandstone. Sulfide minerals in this deposit mainly consist of abundant sphalerite, galena, pyrite and chalcopyrite. Silicification, chloritization and sericitization are widely developed and closely related to the Pb-Zn mineralization. The delta S-34 values of early dark brown sphalerite (marmatite), main-stage sphalerite and galena (-1.1-2.5 parts per thousand, average 0.83 parts per thousand) suggest that the sulfur was mainly sourced from a magmatic system. Lead isotope ratios in the sulfide minerals, rhyolite porphyry and sandstone are relatively homogeneous ((206)pb/(204)pb = 17.786-18.612, (207)pb/(204)pb 15.504-15.635, Pb-208/Pb-204 = 38.115-38.798), and are compatible with metamorphic rocks of Mesoproterozoic Zhoutan Group (Wuyi metamorphosed basement). Early Jurassic sandstone, deposited in an active continental margin or continental arc setting, exhibits low textural maturity and displays geochemical similarities to the Zhoutan Group. The rhyolite porphyry, with features of volcanic arc granite, also shows an affinity with the Zhoutan Group. SIMS zircon U-Pb dating shows that the rhyolite porphyry was emplaced at 156.0 +/- 1.2 Ma, indicating that Caijiaping mineralization formed later than 156 Ma. Hf isotope compositions of the rhyolite porphyry [epsilon(Hf)(t) = -143 to -8.5, average -10.6] imply that it was mainly derived from reworking of ancient crust Potassium feldspar selected from felsic veins within the ore-cutting F4 fault yields a Ar-40/Ar-89 age of 120.0 +/- 4.0 Ma, indicating that the Pb-Zn mineralization formed before 120 Ma. Therefore, the age of mineralization is bracketed between 156 and 120 Ma. Combined with regional geological information, we propose that the Caijiaping mineralization mainly formed from magmatic hydrothermal processes in a regionally extensional setting, and the Wuyi metamorphosed basement significantly contributed to diagenetic and metallogenic processes in this deposit. (C) 2013 Elsevier B.V. All rights reserved.
WOS关键词	GEODYNAMIC SETTINGS ; MESOZOIC GRANITOIDS ; TECTONIC EVOLUTION ; SOUTHEASTERN CHINA ; JIANGXI PROVINCE ; ROCKS ; GEOCHEMISTRY ; PROVENANCE ; SUBDUCTION ; EVENTS
WOS研究方向	Geology ; Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000328869100007
资助机构	National 973 Project of China(2012CB416601) ; National 973 Project of China(2012CB416601) ; National Natural Science Funds Program of the People's Republic of China(40772134) ; National Natural Science Funds Program of the People's Republic of China(40772134) ; National 973 Project of China(2012CB416601) ; National 973 Project of China(2012CB416601) ; National Natural Science Funds Program of the People's Republic of China(40772134) ; National Natural Science Funds Program of the People's Republic of China(40772134) ; National 973 Project of China(2012CB416601) ; National 973 Project of China(2012CB416601) ; National Natural Science Funds Program of the People's Republic of China(40772134) ; National Natural Science Funds Program of the People's Republic of China(40772134) ; National 973 Project of China(2012CB416601) ; National 973 Project of China(2012CB416601) ; National Natural Science Funds Program of the People's Republic of China(40772134) ; National Natural Science Funds Program of the People's Republic of China(40772134)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/86102]
专题	中国科学院地质与地球物理研究所
通讯作者	Yu, Xinqi
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 3.Univ Iowa, Dept Geosci, Iowa City, IA 52242 USA 4.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Dai, Yanpei,Yu, Xinqi,Zhang, Lianchang,et al. Geology, isotopes and geochronology of the Caijiaping Pb-Zn deposit in the North Wuyi area, South China: Implications for petrogenesis and metallogenesis[J]. ORE GEOLOGY REVIEWS,2014,57:116-131.
APA	Dai, Yanpei,Yu, Xinqi,Zhang, Lianchang,Cao, Wentao,Zhu, Yudi,&Li, Chunlin.(2014).Geology, isotopes and geochronology of the Caijiaping Pb-Zn deposit in the North Wuyi area, South China: Implications for petrogenesis and metallogenesis.ORE GEOLOGY REVIEWS,57,116-131.
MLA	Dai, Yanpei,et al."Geology, isotopes and geochronology of the Caijiaping Pb-Zn deposit in the North Wuyi area, South China: Implications for petrogenesis and metallogenesis".ORE GEOLOGY REVIEWS 57(2014):116-131.