Metallogenic chronology of the stratiform Cu orebody in the Dabaoshan Cu polymetallic deposit, northern Guangdong Province and its geological significance

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	Metallogenic chronology of the stratiform Cu orebody in the Dabaoshan Cu polymetallic deposit, northern Guangdong Province and its geological significance
	Qu HongYing 1; Chen MaoHong 1; Yang FuChu 2; Gao ZhiHui 2; Wang YaoWu 2; Zhao HaiJie 1; Yu ZhangFa 3
刊名	ACTA PETROLOGICA SINICA
	2014
卷号	30 期号:1 页码:152-162
关键词	Molybdenite Re-Os isotope age Sericite Ar-Ar age Mineralizaton Dabaoshan Cu ploymetallic deposit South China
ISSN号	1000-0569
英文摘要	The genesis of the stratiform copper orebody in the Dabaoshan copper polymetallic deposits has long been a hot topic with two major models, namely, the submarine volcanic hydrothermal sedimentation model and the porphyry-skarn model. This study takes the Dabaoshan copper polymetallic deposit in northern Guangdong as an example to analyze its metallogenic ages using molybdenite Re-Os dating and sericite Ar-Ar dating methods. In this study we obtain molybdenite Re-Os model ages ranging from 165.7 +/- 2.3Ma to 163.4 +/- 2.4Ma (2 sigma, n = 9), isochron age of 141.1 +/- 1.4Ma and weighted mean age of 164.8 +/- 0.8Ma. Meanwhile, we obtain sericite Ar-Ar ages of 166.6 +/- 1.6Ma (DB011) and 171.7 +/- 2.0Ma (DB020), with the corresponding reverse isochron ages of 167.0 2.0Ma and 161.7 +/- 1.7Ma. Due to excess argon, the age of 171.7 +/- 2.0Ma is a little bit higher but all the other Ar-Ar ages are the same as the Re-Os isochron age. Combining with previous studies, the mineralization age of the Dabaoshan Cu ore deposit is coeval with the large scale lithosphere extension stage and mineralization in South China, indicating that the Dabaoshan Cu ore deposit was formed as a result of lithosphere extension and thinning events of the same period.
学科主题	矿床地质
WOS关键词	SOUTHERN HUNAN PROVINCE ; TRACE-ELEMENT ; TIN DEPOSIT ; CHINA ; GEOCHRONOLOGY ; MINERALIZATION ; CASSITERITE ; CONSTRAINTS ; MANTLE
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000330817100011
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40432]
专题	中国地质科学院矿产资源研究所
作者单位	1.Chinese Acad Geol Sci, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China 2.Chang An Univ, Coll Earth Sci & Resources, Xian 710064, Peoples R China 3.Dabaoshan Min Corp Ltd, Shaoguan 512000, Peoples R China 4.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Qu HongYing,Chen MaoHong,Yang FuChu,et al. Metallogenic chronology of the stratiform Cu orebody in the Dabaoshan Cu polymetallic deposit, northern Guangdong Province and its geological significance[J]. ACTA PETROLOGICA SINICA,2014,30(1):152-162.
APA	Qu HongYing.,Chen MaoHong.,Yang FuChu.,Gao ZhiHui.,Wang YaoWu.,...&Yu ZhangFa.(2014).Metallogenic chronology of the stratiform Cu orebody in the Dabaoshan Cu polymetallic deposit, northern Guangdong Province and its geological significance.ACTA PETROLOGICA SINICA,30(1),152-162.
MLA	Qu HongYing,et al."Metallogenic chronology of the stratiform Cu orebody in the Dabaoshan Cu polymetallic deposit, northern Guangdong Province and its geological significance".ACTA PETROLOGICA SINICA 30.1(2014):152-162.