Geological and Geochemical Constraints on the Newly Discovered Yangchongli Gold Deposit in Tongling Region, Lower Yangtze Metallogenic Belt

doi:10.1111/1755-6724.13451

	Geological and Geochemical Constraints on the Newly Discovered Yangchongli Gold Deposit in Tongling Region, Lower Yangtze Metallogenic Belt
	Duan, Liu'an 1,2,3; Gu, Huangling 1,4; Yang, Xiaoyong 1
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2017-12-01
卷号	91 期号:6 页码:2078-2108
关键词	Monzodiorites A-type Granites U-pb Chronology Yangchongli Gold Deposits Tongling Region Lower Yangtze Metallogenic Belt
ISSN号	1000-9515
DOI	10.1111/1755-6724.13451
文献子类	Review
英文摘要	The newly discovered Yangchongli gold deposit is a unique independent gold deposit in the Tongling ore-cluster region controlled by the tectonic alteration firstly discovered in the Lower Yangtze Metallogenic Belt (LYMB). The host magmatic rocks mainly consist of monzodiorite and K-feldspar granite. The LA-ICP-MS U-Pb zircons dating yielded weighted mean Pb-206/U-238 ages of 140.7 +/- 1.8 Ma and 126.4 +/- 1.2 Ma for the monzodiorite and K-feldspar granite, respectively. Monzodiorites are enriched in Sr, Ba, Rb, and depleted in Y, Yb with high Sr/Y and La/Yb ratios, similar to the geochemical features of adakite, considered as products of differentiation of mafic magmas originating from lithospheric mantle melt/fluids caused by metasomatism during paleo-Pacific Plate subduction in the Mesozic. In contrast, the compositions of K-feldspar granites are A-type granites, indicating an extensional tectonic background. Gold ores hosted in the fracture zone occurred as quartz vein within cataclastic rock. Sulfur and lead isotopes from pyrites show crust-mantle mixing characteristics. Metal components from strata also took part in the gold mineralization, and resulted from two episodes of magmatism that were probably related to tectonic transition from a compressive to an extensional setting between 140-126 Ma, which led to the Mesozoic large-scale polymetallic mineralization events in eastern China.
WOS关键词	A-TYPE GRANITE ; ZIRCON U-PB ; EASTERN CHINA IMPLICATIONS ; TRACE-ELEMENT COMPOSITION ; SOUTHEAST HUBEI PROVINCE ; LOWER CONTINENTAL-CRUST ; HF-O ISOTOPES ; RIVER BELT ; SUBDUCTION ZONES ; OXIDATION-STATE
WOS研究方向	Geology
语种	英语
出版者	WILEY
WOS记录号	WOS:000418844800014
资助机构	DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; 41673040) ; 41673040) ; 41673040) ; 41673040) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; 41673040) ; 41673040) ; 41673040) ; 41673040) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; 41673040) ; 41673040) ; 41673040) ; 41673040) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; DREAM project of MOST China(2016YFC0600404) ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Natural Science Foundation of China(41372087 ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; Project of Geological Science and Technology of Anhui Province(2015-K-01) ; 41673040) ; 41673040) ; 41673040) ; 41673040)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/79976]
专题	中国科学院地质与地球物理研究所
通讯作者	Yang, Xiaoyong
作者单位	1.Univ Sci & Technol China, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.7 Gold Geol Party CAPF, Yantai 264004, Peoples R China 4.Hunan Univ Technol, Sch City & Environm, Zhuzhou 412007, Peoples R China
推荐引用方式 GB/T 7714	Duan, Liu'an,Gu, Huangling,Yang, Xiaoyong. Geological and Geochemical Constraints on the Newly Discovered Yangchongli Gold Deposit in Tongling Region, Lower Yangtze Metallogenic Belt[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2017,91(6):2078-2108.
APA	Duan, Liu'an,Gu, Huangling,&Yang, Xiaoyong.(2017).Geological and Geochemical Constraints on the Newly Discovered Yangchongli Gold Deposit in Tongling Region, Lower Yangtze Metallogenic Belt.ACTA GEOLOGICA SINICA-ENGLISH EDITION,91(6),2078-2108.
MLA	Duan, Liu'an,et al."Geological and Geochemical Constraints on the Newly Discovered Yangchongli Gold Deposit in Tongling Region, Lower Yangtze Metallogenic Belt".ACTA GEOLOGICA SINICA-ENGLISH EDITION 91.6(2017):2078-2108.