Chachang Au deposit, Menglian Co., Pu'er, Yunnan, Chinai
| Regional Level Types | |
|---|---|
| Chachang Au deposit | Deposit |
| Menglian Co. | County |
| Pu'er | Prefecture |
| Yunnan | Province |
| China | Country |
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| Name(s) in local language(s): | ่ถๅบ้็ฟ, ๅญ่ฟๅฃๆๆ็ฅๆไฝคๆ่ชๆฒปๅฟ, ๆฎๆดฑๅธ, ไบๅ็, ไธญๅฝ |
|---|
| Latitude & Longitude (WGS84): | 22° 19' North , 99° 31' East |
|---|---|
| Latitude & Longitude (decimal): | 22.31667,99.51667 |
| GeoHash: | G#: w5yybw9u4 |
| Locality type: | Deposit |
| Kรถppen climate type: | Cwa : Monsoon-influenced humid subtropical climate |
Small hydrothermal vein-type gold deposit with supergene enrichment, occurring in brecciated rocks within a fracture zone. Gold reserves are estimated at 1140 kg.
Regions containing this locality
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| โ Arsenopyrite Formula: FeAsS Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Chalcopyrite Formula: CuFeS2 Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ 'Feldspar Group' Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Galena Formula: PbS Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Gold Formula: Au Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Kaolinite Formula: Al2(Si2O5)(OH)4 Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ 'Limonite' Formula: (Fe,O,OH,H2O) Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Muscovite var: Sericite Formula: KAl2(AlSi3O10)(OH)2 Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Pyrite Formula: FeS2 Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
| โ Quartz Formula: SiO2 Reference: Langtao He (2002): Mineral Deposits 21(suppl.), 606-609 |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| โ | 'Gold' | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| โ | 'Arsenopyrite' | 2.EB.20 | FeAsS |
| โ | 'Chalcopyrite' | 2.CB.10a | CuFeS2 |
| โ | 'Galena' | 2.CD.10 | PbS |
| โ | 'Pyrite' | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| โ | 'Quartz' | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| โ | 'Kaolinite' | 9.ED.05 | Al2(Si2O5)(OH)4 |
| โ | 'Muscovite' | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| โ | var: Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified Minerals, Rocks, etc. | |||
| โ | 'Feldspar Group' | - | |
| โ | 'Limonite' | - | (Fe,O,OH,H2O) |
List of minerals arranged by Dana 8th Edition classification
| Group 1 - NATIVE ELEMENTS AND ALLOYS | |||
|---|---|---|---|
| Metals, other than the Platinum Group | |||
| โ | Gold | 1.1.1.1 | Au |
| Group 2 - SULFIDES | |||
| AmXp, with m:p = 1:1 | |||
| โ | Galena | 2.8.1.1 | PbS |
| AmBnXp, with (m+n):p = 1:1 | |||
| โ | Chalcopyrite | 2.9.1.1 | CuFeS2 |
| AmBnXp, with (m+n):p = 1:2 | |||
| โ | Arsenopyrite | 2.12.4.1 | FeAsS |
| โ | Pyrite | 2.12.1.1 | FeS2 |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
| Sheets of 6-membered rings with 2:1 layers | |||
| โ | Muscovite | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| โ | Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals, Rocks, etc. | |||
| โ | 'Feldspar Group' | - | |
| โ | Kaolinite | - | Al2(Si2O5)(OH)4 |
| โ | 'Limonite' | - | (Fe,O,OH,H2O) |
| โ | Muscovite var: Sericite | - | KAl2(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | โ Kaolinite | Al2(Si2O5)(OH)4 |
| H | โ Limonite | (Fe,O,OH,H2O) |
| H | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | โ Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | โ Kaolinite | Al2(Si2O5)(OH)4 |
| O | โ Limonite | (Fe,O,OH,H2O) |
| O | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | โ Quartz | SiO2 |
| O | โ Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | โ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | โ Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | โ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | โ Quartz | SiO2 |
| Si | โ Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | โ Arsenopyrite | FeAsS |
| S | โ Chalcopyrite | CuFeS2 |
| S | โ Galena | PbS |
| S | โ Pyrite | FeS2 |
| K | Potassium | |
| K | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | โ Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| Fe | Iron | |
| Fe | โ Arsenopyrite | FeAsS |
| Fe | โ Chalcopyrite | CuFeS2 |
| Fe | โ Limonite | (Fe,O,OH,H2O) |
| Fe | โ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | โ Chalcopyrite | CuFeS2 |
| As | Arsenic | |
| As | โ Arsenopyrite | FeAsS |
| Au | Gold | |
| Au | โ Gold | Au |
| Pb | Lead | |
| Pb | โ Galena | PbS |
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 Macrostrat.org
| Late Paleozoic 251.902 - 358.9 Ma ID: 3185854 | Paleozoic sedimentary rocks Age: Phanerozoic (251.902 - 358.9 Ma) Lithology: Sedimentary rocks Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
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Year (asc) Year (desc) Author (A-Z) Author (Z-A)Langtao He (2002): Geological characteristics and prospecting significance's [sic] of Chachang gold deposit, Menglian, Yunnan Province. Mineral Deposits 21(suppl.), 606-609 (in Chinese with English title).
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