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Caijiaying Mine, Zhangbei Co., Zhangjiakou Prefecture, Hebei Province, China

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Latitude & Longitude (WGS84): 41° 26' 15'' North , 115° 28' 10'' East
Latitude & Longitude (decimal): 41.43750,115.46944
Name(s) in local language(s):蔡家营铅锌银多金属矿, 张北县, 张家口市, 河北省, 中国

Polymetallic Pb-Zn-Cu-(Ag-Au) vein and stockwork deposit, consisting of swarms of dense veins that range from 300 to 1000 m long, 1 to 18 m thick, and extend 400 to 500 m downdip. Host rock is a fine-grained amphibole gneiss derived from Paleoproterozoic volcanic and sedimentary rocks that are metamorphosed to amphibolite facies. They occur along a limb of an overturned fault. The deposit is related to Jurassic and Cretaceous granite porphyries and quartz porphyry dikes, and Late Jurassic volcanic rocks. It rerpresents a Mesozoic magmatic hydrothermal system. The ore minerals occur in masses and disseminations. The host rocks exhibit chlorite, sericite, silica, pyrite, and carbonate alterations. Early chlorite alteration was replaced by later sericite alteration. From the deposit outwards, the host rocks display successive belts of sericite and chlorite alteration. Fluid inclusion temperatures range from 200°C to 350°C.

Mineral List

36 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

145 - 201.3 Ma
Jurassic volcanic rocks

Age: Jurassic (145 - 201.3 Ma)

Comments: May include hypabyssal intrusions.

Lithology: Volcanic rocks

Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d. [18]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Dianhao Huang, Xiaoshi Ding, Chengyu Wu, and Changjiang Zhang (1991): Mineral characteristics and occurrence of gold, silver and bismuth of the Caijiaying lead-zinc-silver deposit, Hebei Province. Acta Geologica Sinica 65(2), 127-140 (in Chinese with English abstract).

Jiayong Pan, Qian Zhang, and Zongyao Rui (1993): Trace element characteristics of major minerals in the Caijiaying lead-zinc-silver deposit. Journal of Guilin College of Geology 13(4), 386-393.

Jiayong Pan and Qian Zhang (1994): Discussion of ore-forming elements zoning feature in the Caijiaying polymetallic deposit. Geology and Prospecting 30(1), 58-62.

Dianhao, H., and Chengyu, W. (1997): Geological and geochemical characteristics and ore-forming mechanism of the Caijiaying Pb-Zn-Ag deposit, Hebei Province, China. Dixue Yanjiu 29(30), 198-211.

Dianhao Huang (1999): Genesis of sulfide inclusions in iron-rich sphalerite from hydrothermal vein-type lead-zinc-silver deposits. Mineral Deposits 18(3), 244-252 (in Chinese with English abstract).

Wang Lijuan, Wang Jingbin, Wang Yuwang, and Zhu Heping (2004): Ore-forming fluid and mineralization of Caijiaying and Dajing polymetallic ore deposits. Science in China, Series D (Earth Sciences), 47(2), 97-107.

Youli Feng, Lijing Yu, and Ruizhong Hu (2006): The characteristics of geological and altered rocks of Caijiaying Pb-Zn-Ag ore deposit. Journal of The Virtual Explorer 24(2).

Zhaoshan Chang, White, N.C., Crowe, R.W.A., and Woodhouse, W. (2006): Caijiaying Mine, Hebei, China: An unusual Zn-Au deposit. Australian Earth Sciences Convention, Melbourne, July 2-6, 2006.

Zhaoshan Chang, White, N.C., Crowe, R.W.A., Woodhouse, W., and Wilson, N. (2007): Unusual Zn-Au Mineralization at the Caijiaying Mine, Hebei, China. Symposium on Circum-Pacific Tectonics, Geologic Evolution, and Ore Deposits, Tucson (AZ), September 24-30, 2007.

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