Dating of the giant Huize Zn-Pb ore field of Yunnan Province, southwest   China: Constraints from the Sm-Nd system in hydrothermal calcite

doi:10.1111/j.1751-3928.2006.00007.x

CORC > 北京大学 > 地球与空间科学学院

	Dating of the giant Huize Zn-Pb ore field of Yunnan Province, southwest China: Constraints from the Sm-Nd system in hydrothermal calcite
	Li, Wenbo ; Huang, Zhilong ; Yin, Mudan
刊名	resource geology
	2007
关键词	Huize Zn-Pb ore field MVT deposit Sm-Nd isotope calcite southwest China LARGE IGNEOUS PROVINCE ISOTOPE SYSTEMATICS NORTH-AMERICA GOLD DEPOSITS SW CHINA GENESIS MINERALIZATION SCHEELITE NEODYMIUM AGE
DOI	10.1111/j.1751-3928.2006.00007.x
英文摘要	The Huize ore field, which is the most famous high-grade Mississippi Valley-type Zn-Pb ore field in China, consists of the Kuangshanchang and Qilinchang deposits. The Sm-Nd isotopic compositions of gangue calcite were analyzed to constrain the timing of mineralization. Eight calcite samples from the No. 6 orebody in the Qilinchang deposit have Sm and Nd concentrations of 1.82-25.93 and 15.25-79.02 ppm, respectively, and yielded an age of 225 +/- 9.9 Ma with epsilon Nd = -10.6 and MSWD = 0.13. Five calcites from the No. 1 orebody in the Kuangshanchang deposit contain 2.37-2.90 ppm Sm and 8.18-16.85 ppm Nd, and yielded an age of 228 +/- 16 Ma, with epsilon Nd = -10.6 and MSWD = 0.28. These two ages are close to the age of the Emeishan flood basalt, which is ca 255 Ma, and agree with the reported Ar-40/Ar-39 plateau and isochron ages of the native copper mineralization related to the Emeishan flood basalt in this region, which are 226-228 Ma. Moreover, previous study shows that the magnitude of uplift resulting from the Emeishan flood basalts is > 1000 m. It indicates that the Kuangshanchang and the Qilinchang deposit formed during the same geological event and originated by fluid migration during uplift resulting from the Emeishan flood basalt.; Geology; Mineralogy; SCI(E); 15; ARTICLE; 1; 90-97; 57
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/156023]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Li, Wenbo,Huang, Zhilong,Yin, Mudan. Dating of the giant Huize Zn-Pb ore field of Yunnan Province, southwest China: Constraints from the Sm-Nd system in hydrothermal calcite[J]. resource geology,2007.
APA	Li, Wenbo,Huang, Zhilong,&Yin, Mudan.(2007).Dating of the giant Huize Zn-Pb ore field of Yunnan Province, southwest China: Constraints from the Sm-Nd system in hydrothermal calcite.resource geology.
MLA	Li, Wenbo,et al."Dating of the giant Huize Zn-Pb ore field of Yunnan Province, southwest China: Constraints from the Sm-Nd system in hydrothermal calcite".resource geology (2007).