Sinongduo deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, Chinai
| Regional Level Types | |
|---|---|
| Sinongduo deposit | Deposit |
| Xaitongmoin Co. (Xietongmen Co.) | County |
| Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture) | Prefecture |
| Tibet | Autonomous Region |
| China | Country |
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Latitude & Longitude (WGS84):
29° 58' 45'' North , 88° 34' 30'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Manto-type Pb–Zn–Ag deposit in the carbonate rock and the LVS, and the north Ag–Pb–Zn epithermal deposit in the Dianzhong formation of the LVS IS epithermal deposit.
The Sinongduo deposit, situated in the southern margin of the central Lhasa subterrane about 170 km west of Xigaze, encompasses three distinct orebodies: a hydrothermal vein-type Ag-Pb-Zn, a cryptoexplosive breccia-type Pb-Zn-Ag, and independent silver orebodies. The mineralization mainly occurred between 63.1 and 60.9 Ma based on the sericite Ar-Ar isotopic dating. In this deposit, the ore-bearing wall rocks comprise rhyolite porphyry, crystal tuff, and volcanic breccia, while the intrusive rocks mainly consist of SE-trending granite porphyry and biotite granite porphyry. The exposed area of granite porphyry batholith is about 0.3 square kilometers, and granite porphyry, biotite granite porphyry, and rhyolite porphyry are in close spatial contact.
Three mineralization stages have been identified based on the different minerals and their textural relationships, including the pre-ore stage, main-ore stage, and post-ore stage. The main-ore stage can be subdivided into three substages: galena ore substage, sphalerite ore substage, and silver minerals ore substage. Alterations in the area are dominated by silicification, illitization, chalcedonization, sericitization, and carbonation, leading to the formation of alteration minerals such as illite, sericite, chalcedony, jasper, quartz, calcite, and minor kaolinite, adularia, and montmorillonite. Pb + Zn reserves exceeding 350,000 tons and Ag reserves surpassing 400 tons. The average grades of these ores are approximately 5% for Pb + Zn and 50 g/t for Ag.
The Ag–Pb–Zn deposit in Sinongduo, the first low-sulfide epithermal deposit found in the Gangdese metallogenic belt, is located in the continental volcanic regions of the Tethys Himalayan orogenic belt. It includes cryptoexplosive breccia-type Ag–Pb–Zn ore bodies, hydrothermal vein-type Pb–Zn–Ag ore bodies, and independent Ag ore bodies, which have been logged according to the characteristics of the host rock and the ore-forming elements.
The Ag-Pb-Zn ore bodies predominantly occur as veins and breccia columns. The ore types chiefly consist of hydrothermal breccia Pb-Zn ores, hydrothermal vein Pb-Zn ores, and high-grade Ag ores. Three paragenetic stages have been distinguished: (Ⅰ) the pre-ore stage, primarily characterized by pyrite and quartz; (Ⅱ) the main metallogenic stage, which includes three substages (Fe-Cu-Zn, Pb-Zn, and Ag), producing large amounts of sphalerite, galena, pyrite, chalcopyrite, and minor Ag minerals; and (Ⅲ) the post-ore stage, marked by calcite and quartz. Widespread intense hydrothermal alteration occurs near the prominent mineralized veins, characterized by quartz, sericite, illite, and calcite assemblages. The Sinongduo deposit is the first epithermal Ag-Pb-Zn deposit discovered in the NGPB, with metal reserves of 148,136 tons (t) of Pb, 205,722 t of Zn, and over 400 t of silver, and average grades of 1.95 % Pb, 2.70 % Zn, and 52.33 g/t Ag, respectively.
The Sinongduo deposit, situated in the southern margin of the central Lhasa subterrane about 170 km west of Xigaze, encompasses three distinct orebodies: a hydrothermal vein-type Ag-Pb-Zn, a cryptoexplosive breccia-type Pb-Zn-Ag, and independent silver orebodies. The mineralization mainly occurred between 63.1 and 60.9 Ma based on the sericite Ar-Ar isotopic dating. In this deposit, the ore-bearing wall rocks comprise rhyolite porphyry, crystal tuff, and volcanic breccia, while the intrusive rocks mainly consist of SE-trending granite porphyry and biotite granite porphyry. The exposed area of granite porphyry batholith is about 0.3 square kilometers, and granite porphyry, biotite granite porphyry, and rhyolite porphyry are in close spatial contact.
Three mineralization stages have been identified based on the different minerals and their textural relationships, including the pre-ore stage, main-ore stage, and post-ore stage. The main-ore stage can be subdivided into three substages: galena ore substage, sphalerite ore substage, and silver minerals ore substage. Alterations in the area are dominated by silicification, illitization, chalcedonization, sericitization, and carbonation, leading to the formation of alteration minerals such as illite, sericite, chalcedony, jasper, quartz, calcite, and minor kaolinite, adularia, and montmorillonite. Pb + Zn reserves exceeding 350,000 tons and Ag reserves surpassing 400 tons. The average grades of these ores are approximately 5% for Pb + Zn and 50 g/t for Ag.
The Ag–Pb–Zn deposit in Sinongduo, the first low-sulfide epithermal deposit found in the Gangdese metallogenic belt, is located in the continental volcanic regions of the Tethys Himalayan orogenic belt. It includes cryptoexplosive breccia-type Ag–Pb–Zn ore bodies, hydrothermal vein-type Pb–Zn–Ag ore bodies, and independent Ag ore bodies, which have been logged according to the characteristics of the host rock and the ore-forming elements.
The Ag-Pb-Zn ore bodies predominantly occur as veins and breccia columns. The ore types chiefly consist of hydrothermal breccia Pb-Zn ores, hydrothermal vein Pb-Zn ores, and high-grade Ag ores. Three paragenetic stages have been distinguished: (Ⅰ) the pre-ore stage, primarily characterized by pyrite and quartz; (Ⅱ) the main metallogenic stage, which includes three substages (Fe-Cu-Zn, Pb-Zn, and Ag), producing large amounts of sphalerite, galena, pyrite, chalcopyrite, and minor Ag minerals; and (Ⅲ) the post-ore stage, marked by calcite and quartz. Widespread intense hydrothermal alteration occurs near the prominent mineralized veins, characterized by quartz, sericite, illite, and calcite assemblages. The Sinongduo deposit is the first epithermal Ag-Pb-Zn deposit discovered in the NGPB, with metal reserves of 148,136 tons (t) of Pb, 205,722 t of Zn, and over 400 t of silver, and average grades of 1.95 % Pb, 2.70 % Zn, and 52.33 g/t Ag, respectively.
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
22 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 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Pyrargyrite | 2.GA.05 | Ag3SbS3 |
| ⓘ | Pearceite | 2.GB.15 | [Ag6As2S7][Ag9CuS4] |
| ⓘ | Enargite | 2.KA.05 | Cu3AsS4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| 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) |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Muscovite var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ | 9.EC.15 | KAl2(AlSi3O10)(OH)2 | |
| ⓘ | Paragonite | 9.EC.15 | NaAl2(AlSi3O10)(OH)2 |
| ⓘ | Muscovite var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Montmorillonite | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
| ⓘ | 'White mica' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| H | ⓘ Paragonite | NaAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| O | ⓘ Paragonite | NaAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Na | Sodium | |
| Na | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Na | ⓘ Paragonite | NaAl2(AlSi3O10)(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | Aluminium | |
| Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | ⓘ Paragonite | NaAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Si | ⓘ Paragonite | NaAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3A |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Enargite | Cu3AsS4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| S | ⓘ Pyrargyrite | Ag3SbS3 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| K | Potassium | |
| K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Enargite | Cu3AsS4 |
| Cu | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Enargite | Cu3AsS4 |
| As | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| Ag | ⓘ Pyrargyrite | Ag3SbS3 |
| Ag | ⓘ Native Silver | Ag |
| Sb | Antimony | |
| Sb | ⓘ Pyrargyrite | Ag3SbS3 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
AsiaContinent
- Hindukush Himalayan RegionGroup of Mountain Ranges
China
- Southern Tibet - Tengchong Li Mineral BeltMineral Belt
- ⭔Southwest ChinaRegion
- Tibet
- Bangonghu–Nujiang metallogenic beltMineral Belt
- Gangdese Metallogenic BeltMineral Belt
Eurasian PlateTectonic Plate
- Lhasa TerraneVolcanic Arc
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References
Yang, Zongyao; Zhao, Xiaoyan; Hu, Guyue; Wang, Ying; Ran, Fengqin; Huang, Yiru; Wu, Xin; Hao, Jinyue; Xiao, Hongtian (2020) Geology, geochronology, and geochemistry of the Sinongduo Ag–Pb–Zn deposit in the Gangdese metallogenic belt: Implications of intermediate sulfidation mineralization in the Linzizong volcanic succession. Ore Geology Reviews, 127. 103796 doi:10.1016/j.oregeorev.2020.103796
[1]Zhang, Peng, Li, Zhuang, Zhao, Feng, Liu, Xinkai (2024) Petrogenesis and Tectonic Implications of the Granite Porphyry in the Sinongduo Ag-Pb-Zn Deposit, Central Tibet: Constraints from Geochronology, Geochemistry, and Sr-Nd Isotopes. Minerals, 14 (7) doi:10.3390/min14070710