Bashan Mine, Chengkou Co., Chongqing, Chinai
| Regional Level Types | |
|---|---|
| Bashan Mine | Mine |
| Chengkou Co. | County |
| Chongqing | Municipality |
| China | Country |
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Latitude & Longitude (WGS84):
32° 4' 0'' North , 108° 42' 49'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Largest witherite producer in China.
The Chengkou‐Bashan witherite deposit in Chengkou County, Chongqing is located in the Huangxi‐Chengkou anticlinorium fold belt within the North Dabashan thrust zone. The area is characterized by a series of tight folds, and the fault structure is well‐developed [28]. The magmatic rocks in this region, primarily composed of diabase, are predominantly of Caledonian age. There are Cu, Pt, Pd, Zn, Pb, Sb, Mo, and Ni and other metal mineralization abnormalities in the mining area. Exposed strata include the Baziping For‐ mation (Zb), Bashan Formation (Є1b), Liujiaping Formation (Є1l), Jianzhuba Formation (Є1j), Maobaguan Formation (Є2m), Baguamiao Formation (Є2b), and other marine platform carbonate formation and continental shelf siliceous rock‐clastic formation sequences. The Baziping Formation (Zb), upper unit of the Sinian specific to Chinese stratigraphy, consists of dolomite with minor lenticular siderite at the bottom, limestone at the intermediate part, and black chert at the top. The Chengkou‐Bashan deposit is hosted in the black, thin‐layered carbonaceous chert of the Bashan Formation. It consists of chert, siliceous shale, and carbonaceous shale from bottom to top, and orebodies are bedded/stratiform or stratiform‐like and lenses strictly controlled by the stratum.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
8 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Witherite | 5.AB.15 | BaCO3 |
| ⓘ | Barytocalcite | 5.AB.45 | BaCa(CO3)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Barytocalcite | BaCa(CO3)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Siderite | FeCO3 |
| C | ⓘ Witherite | BaCO3 |
| O | Oxygen | |
| O | ⓘ Barytocalcite | BaCa(CO3)2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Witherite | BaCO3 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Barytocalcite | BaCa(CO3)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Ba | Barium | |
| Ba | ⓘ Barytocalcite | BaCa(CO3)2 |
| Ba | ⓘ Baryte | BaSO4 |
| Ba | ⓘ Witherite | BaCO3 |
Other Regions, Features and Areas containing this locality
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References
[1]Jiang, Jie; Liang, Feng; Wang, Chan; Tian, Yaming; Hu, Yunxi; Liu, Hao; Xia, Zhipeng; Yuan, Changjian; Han, Kaibin; Zhou, Susu (2025) Formation Conditions of Early Cambrian Witherite (BaCO3) Deposit in Chongqing: Implications for Differential Oceanic Changes. Minerals, 15 (9). doi:10.3390/min15090978
