Stable isotope study of the Langshan polymetallic mineral district,;Inner Mongolia, China

doi:10.1111/j.1751-3928.2000.tb00053.x

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院矿产资源研究所

	Stable isotope study of the Langshan polymetallic mineral district,;Inner Mongolia, China
	Ding, TP 3; Jiang, SY
刊名	RESOURCE GEOLOGY
	2000
卷号	50 期号:1 页码:25-38
关键词	stable isotopes Langshan mineral district lead zinc SEDEX deposits Proterozoic
ISSN号	1344-1698
DOI	10.1111/j.1751-3928.2000.tb00053.x
英文摘要	A comprehensive stable isotope investigation was carried out to clarify the geneses of the ore deposits in the Langshan Pb-Zn mineral district. The lead isotope study shows that these deposits were probably formed from 2.0 to 1.5 Ga, and were deformed and metamorphosed 1.45 Ca. Ore lead could be a mixture of mantle lead and crustal lead. The C and S isotope results indicate that these deposits were precipitated in closed or semi-closed rift basins, and the source of sulfur might be Proterozoic ocean sulfate. The H and O isotope results indicate that the delta D and delta(18)O values of rocks were changed by water-rock interaction during metamorphism and hydrothermal alteration. The scale of delta D and delta(18)O shift of rocks reflects the grade of metamorphism and alteration as well as the water-rock ratios. However, the water-rock ratios in the metamorphic processes of Langshan mineral district were relatively low, and the source of water during metamorphism is suggested to be ancient meteoric water. Based on isotopic results and the geological background, it is concluded that these deposits may belong to Proterozoic sedimentary exhalative (SEDEX) type.
学科主题	矿床地质
WOS关键词	WATER ; FRACTIONATION ; ROCKS
WOS研究方向	Geology ; Mineralogy
语种	英语
出版者	SOC RESOURCE GEOLOGY
WOS记录号	WOS:000086360600002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37393]
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 Deposits, Beijing 100037, Peoples R China. 2.Max Planck Inst Chem, Abt Geochem, D-55020 Mainz, Germany. 3.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Ding, TP,Jiang, SY. Stable isotope study of the Langshan polymetallic mineral district,;Inner Mongolia, China[J]. RESOURCE GEOLOGY,2000,50(1):25-38.
APA	Ding, TP,&Jiang, SY.(2000).Stable isotope study of the Langshan polymetallic mineral district,;Inner Mongolia, China.RESOURCE GEOLOGY,50(1),25-38.
MLA	Ding, TP,et al."Stable isotope study of the Langshan polymetallic mineral district,;Inner Mongolia, China".RESOURCE GEOLOGY 50.1(2000):25-38.