Genesis of the Dadonggou Pb-Zn deposit in Kelan basin, Altay, NW China:   Constraints from zircon U-Pb and biotite Ar-40/Ar-39 geochronological   data

doi:10.1016/j.oregeorev.2014.07.002

CORC > 北京大学 > 地球与空间科学学院

	Genesis of the Dadonggou Pb-Zn deposit in Kelan basin, Altay, NW China: Constraints from zircon U-Pb and biotite Ar-40/Ar-39 geochronological data
	Zheng, Yi ; Zhang, Li ; Li, Deng-Feng ; Kapsiotis, Argyrios ; Chen, Yan-Jing
刊名	ore geology reviews
	2015
关键词	Zircon U-Pb dating Biotite Ar-Ar dating Orogenic-type deposit Dadonggou Pb-Zn deposit Altay China MASSIVE SULFIDE DEPOSITS FLUID INCLUSIONS GOLD DEPOSIT ORE GENESIS ISOTOPE SYSTEMATICS TONGBAI MOUNTAINS NORTHWEST CHINA SOUTHERN ALTAI OROGENIC BELT CU DEPOSIT
DOI	10.1016/j.oregeorev.2014.07.002
英文摘要	The genesis of polymetallic deposits in southern Altay, NW China has been disputed between a syngenetic seafloor hydrothermal process and an epigenetic orogenic-type mineralization. The Dadonggou Pb-Zn deposit occurs as NW-trending veins in the Devonian Kangbutiebao Formation volcanic-sedimentary sequence in the Kelan basin, southern Altay. A set of integrated zircon U-Pb and biotite Ar-40/Ar-39 geochronological data were applied to constrain the forming ages of the ores and their country rocks. Three samples of host volcanic rocks yielded weighted mean Pb-206/U-238 ages of 397.1 +/- 4.5 Ma, 391.7 +/- 3.6 Ma and 391.1 +/- 42 Ma, respectively, indicating that the Kangbutiebao Formation was deposited in a Devonian back-arc basin. Two biotite samples separated from the Pb-Zn-containing quartz veins yielded Ar-40/Ar-39 plateau ages of 205.9 +/- 2.1 Ma and 204.3 +/- 2.2 Ma, respectively, which represent the age of the Pb-Zn mineralization that is attributed to the closure of the Kelan back-arc basin and the Late Triassic orogeny. Combining the available geological and geochronological data, this contribution outlines the successive evolution from the development of a Devonian back-arc basin to the Late Triassic post-subduction orogeny, and proposes that the Dadonggou Pb-Zn deposit is an epigenetic orogenic-type deposit placed in the Late Triassic orogeny. (C) 2014 Elsevier B.V. All rights reserved.; Geology; Mineralogy; Mining & Mineral Processing; SCI(E); EI; 0; ARTICLE; yjchen@pku.edu.cn; 1; 128-139; 64
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/206755]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zheng, Yi,Zhang, Li,Li, Deng-Feng,et al. Genesis of the Dadonggou Pb-Zn deposit in Kelan basin, Altay, NW China: Constraints from zircon U-Pb and biotite Ar-40/Ar-39 geochronological data[J]. ore geology reviews,2015.
APA	Zheng, Yi,Zhang, Li,Li, Deng-Feng,Kapsiotis, Argyrios,&Chen, Yan-Jing.(2015).Genesis of the Dadonggou Pb-Zn deposit in Kelan basin, Altay, NW China: Constraints from zircon U-Pb and biotite Ar-40/Ar-39 geochronological data.ore geology reviews.
MLA	Zheng, Yi,et al."Genesis of the Dadonggou Pb-Zn deposit in Kelan basin, Altay, NW China: Constraints from zircon U-Pb and biotite Ar-40/Ar-39 geochronological data".ore geology reviews (2015).