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Jiangbian deposit, Yangla Cu-Zn deposit (Yargla Cu-Zn deposit; Yagla Cu-Zn deposit; Yagra Cu-Zn deposit), Dêqên County (Deqin Co.; Diqing Co.), Dêqên Autonomous Prefecture, Yunnan, Chinai
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Latitude & Longitude (WGS84):
28° 56' 26'' North , 99° 6' 14'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The Jiangbian deposit is an important section of the Yangla Cu–polymetallic orefield, located to the north near the Nilü Cu deposit and to the south near the Linong Cu deposit. The Jiangbian deposit is the third largest, containing a total reserve of 0.53 Mt, avg. 0.94 wt% Cu, accounting for approximately 5 % of the total Yangla Cu reserves. The exposed stratigraphy mainly composed of Devonian Jiangbian (D1j), Linong (D2+3l) and Carboniferous Beiwu Formations (C1b) in the Jiangbian Cu deposit. Hydrothermal alterations (skarnization, silicification, and carbonization) were widespread in these fracture zones, and Cu mineralization gradually strengthened as these hydrothermal alterations progressed. The Cu ores exhibit massive, fine-grained, layered, brecciated, veined, and banded textures, which are highly similar to those found in the well-known Linong and Lunong skarn Cu deposits. The Cu ore bodies in Jiangbian are primarily hosted by skarn, followed by meta-quartz arenite, sandy slate, marble, and granodiorite. Skarnization, silicification, and carbonization assemblages developed within the contact zones between the granitoids and Devonian wall rocks, and Cu mineralization occurred within these zones. The primary sulfides (pyrite, chalcopyrite, galena, and sphalerite) occurred in disseminated and vein forms, and Cu ores occurred in the skarn zone. These geological features suggest that the Jiangbian deposit is highly similar to typical Cu skarn deposits.
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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
13 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 | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Zircon | Zr(SiO4) |
| Mg | Magnesium | |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Al | Aluminium | |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | Iron | |
| Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
AsiaContinent
- Hindukush Himalayan RegionGroup of Mountain Ranges
China
- ⭔Southwest ChinaRegion
- Tibet
- Qamdo Prefecture (Changdu Prefecture)
- Jinshajiang Cu metallogenic beltMineral Belt
- Qamdo Prefecture (Changdu Prefecture)
Eurasian PlateTectonic Plate
- Qiangtang TerraneAccretionary Complex
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References
Wang, Xinfu; Li, Bo; Tan, Shucheng; Xu, Cheng; He, Changfen; Liang, Yuhuan (2025) Geology and Cu mineralization in the Jiangbian deposit of the Yangla polymetallic orefield, SW China: In situ trace element constraints and s-pb sulfide isotopic compositions. Ore Geology Reviews, 181. doi:10.1016/j.oregeorev.2025.106635
