Donggou Pb-Zn deposit, Lenghu Co., Mangnai City (Mangya Co.), Haixi Mongol and Tibetan Autonomous Prefecture, Qinghai, Chinai

Regional Level Types
Donggou Pb-Zn deposit	Deposit
Lenghu Co.	County
Mangnai City (Mangya Co.)	County
Haixi Mongol and Tibetan Autonomous Prefecture	Prefecture
Qinghai	Province
China	Country

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The strata exposed in the mining area are predominantly the clastic rock formation and volcanic rock formation of the Ordovician Qimantagh Group, with minor outcrops of the Lower Carboniferous Shiguaizi Formation and Dagangou Formation in the southern part. The Qimantagh Group is the main ore-hosting stratigraphic unit in the mining area and is characterized by clastic sedimentary rocks intercalated with intermediate–basic volcanic rocks that occur as thin layers or lenses. The clastic sedimentary rocks consist of biotite–chlorite–sericite phyllitic slate, sericite quartz phyllite, meta-fine-grained quartz greywacke, lithic arkose, argillaceous carbonaceous silty slate, andesitic crystal tuff, and strongly schistose marble. Among these, andesitic crystal tuff is only identified in small amounts in drill cores. Volcanic rocks are dominated by basaltic andesite, andesite, and rhyolite and are interbedded with clastic rocks in the mining area. Six lead–zinc polymetallic blind ore bodies (M1–M6) have been delineated in the deep part of the mining area. Among them, M4 is the main ore body. These ore bodies are significantly controlled by stratigraphic horizons and can be classified into massive (M4), disseminated (M1, M2, M5, M6), and veinlet-disseminated (M3) types. Among them, the massive ore bodies are mainly hosted by andesite. The ore bodies are generally stratoid in morphology, with relatively stable extension along the dip direction. These ore types can be broadly classified into massive ores, laminated-like ores, vein-type ores, and disseminated ores. Metallic minerals are hosted within fractures of cryptoexplosive breccias. The mineralization can be divided into four main stages: the diagenetic/sedimentary stage (Py1), the hydrothermal stage (subdivided into the massive sulfide stage (Stage I), the veinlet-disseminated sulfide stage (Stage II), and the late overprinting stage (Stage III)), and the supergene/alteration stage.

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

11 valid minerals.

Rock Types Recorded