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Dafulou Sn deposit, Nandan County, Hechi, Guangxi, Chinai
| Regional Level Types | |
|---|---|
| Dafulou Sn deposit | Deposit |
| Nandan County | County |
| Hechi | Prefecture |
| Guangxi | Autonomous Region |
| China | Country |
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Latitude & Longitude (WGS84):
24° 54' 52'' North , 107° 36' 42'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Maolan | 848 (2001) | 70.5km |
Vein and stratabound, black-shale hosted cassiterite-sulphide deposit in the eastern part of the Dachang orefield.
A total of 21 tin-zinc ore bodies have been identified in the mining area, including 8 steeply dipping vein-type ore bodies and 13 gently dipping stratiform-like ore bodies. The cumulative proven tin metal reserves exceed 100,000 tons (average Sn 0.89 %), while zinc reserves amount to 40,000 tons (average Zn 5.53 %). The ore bodies mainly occur in three morphological types: steep vein-type, stratiform-like, and quartz stockwork-type.
The Dafulou deposit contains reserves of about 44,000 t of Sn, with an average grade of 0.88 %, 16,392 t of Zn, with an average grade of 3.1 %, and other metal resources. Modern industrial mining of 0# orebody started in 1966, while mining of 21# and 22# orebodies started in 1988. The Dafulou deposit contains 21#, 22#, and 0# orebodies, all of which are characterized by stable occurrence and large scale. NW-SE-striking faults are well developed in the eastern Dachang district and serve as the main ore-bearing structures for the steeply-dipping 0# orebody, whereas 21# and 22# orebodies are hosted within stratified fracture zones developed along lithological boundaries between marlstone and mudstone of the Tangding Formation. In detail, the 21# and 22# orebodies are parallel, dip ∼ 50°at 7° to 10°, and have been traced along strike for distances of 600 and 1100 m, respectively. The 0# orebody is steeply-dipping (72°–84°) and has strike lengths of up to 1250 m, are up to 2 m wide, and extend to depths of 500 m. The Dafulou deposit can be classified into the cassiterite-sulfides stage (stage I), the cassiterite-quartz stage (stage II), and the carbonate stage (stage III) based on mineral assemblages and crosscutting relationships.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
21 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Stannite | 2.CB.15a | Cu2FeSnS4 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Herzenbergite | 2.CD.05 | SnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | 'Freibergite Subgroup' | 2.GB.05 | (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
| ⓘ | 'Pyrobitumen' | - | |
List of minerals for each chemical element
| B | Boron | |
|---|---|---|
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Apatite | Ca5(PO4)3A |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3A |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| S | ⓘ Galena | PbS |
| S | ⓘ Herzenbergite | SnS |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Stannite | Cu2FeSnS4 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Stannite | Cu2FeSnS4 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| Cu | ⓘ Stannite | Cu2FeSnS4 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Sn | ⓘ Herzenbergite | SnS |
| Sn | ⓘ Stannite | Cu2FeSnS4 |
| Sb | Antimony | |
| Sb | ⓘ Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
AsiaContinent
China
- Giant Sb metallogenic beltMineral Belt
- Guangxi
- Nandan-Hechi Sn-W metallogenic belt
- Dachang ore fieldOre Field
- Nandan-Hechi Sn-W metallogenic belt
- Youjiang metallogenic provinceMineral Province
Eurasian Plate
- Eastern Yangtze CratonCraton
Yangtze PlateTectonic Plate
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References
Pašava, Jan, Kříbek, Bohdan, Dobeš, Petr, Vavřín, Ivan, Žák, Karel, Delian, Fan, Tao, Zhang, Boiron, Marie-Christine (2003) Tin–polymetallic sulfide deposits in the eastern part of the Dachang tin field (South China) and the role of black shales in their origin. Mineralium Deposita, 38 (1) 39-66 doi:10.1007/s00126-002-0269-4
[1]Wang, XinYu; Zhang, HengQing; Wei, LiangXi; Zhou, RongXing; Gong, Yan; Zhao, PinZhong; Xiao, ChangHao (2025) Ore-forming processes of the Dafulou tin deposit in the Dachang orefield: Evidence from geological, petrographic, fluid inclusion, and sulfur isotope analyses. Ore Geology Reviews, 186. 106909 doi:10.1016/j.oregeorev.2025.106909
