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Longshan Au-Sb Mine, Xinshao Co., Shaoyang, Hunan, Chinai
| Regional Level Types | |
|---|---|
| Longshan Au-Sb Mine | Mine |
| Xinshao Co. | County |
| Shaoyang | Prefecture-level City |
| Hunan | Province |
| China | Country |
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Latitude & Longitude (WGS84):
27° 29' 3'' North , 111° 44' 15'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Lianyuan | 66,501 (2012) | 23.8km |
| Loudi | 150,684 (2018) | 37.6km |
| Lengshuijiang | 115,399 (2012) | 37.9km |
| Yongfeng | 70,783 (2012) | 44.4km |
| Shangmei | 75,233 (2012) | 52.2km |
Other/historical names associated with this locality:
Longshan Au-Sb deposit, Dongzhi Au ore field
Name(s) in local language(s):
龙山金锑矿, 新邵县, 邵阳市, 湖南省, 中国
Stratabound Carlin-type gold-antimony deposit.
Located on the boundary between Xinshao and Linyuan counties.
24 NE-striking and NW-striking vein groups.
Hydrothermal alterations include sericitization, silicification, and sulfidation.
The Longshan Sb-Au deposit (3.7 Mt @4.5 wt. % Sb and 4.6 g/t Au) contains two mining zones: Longshan and Xiejiashan.
The main ore-hosting strata consist of the upper part of the Jiangkou Formation of the lower Sinian system, which is composed of shallowly metamorphosed clastic rocks with a total thickness exceeding 1800 m. The upper part of the Jiangkou Formation is divided into four sub-sections, with the conglomeratic sandy slate and conglomeratic slate being the primary Sb-Au ore-hosting layers.
Orebodies in the Longshan deposit primarily occur as veins, strictly controlled by NE-striking and NW-striking faults. The Sb and Au mineralization within these ore veins exhibits a significant spatial overlap. A total of 24 NE-striking and NW-striking vein groups have been identified in this deposit. The vein #1 and vein #2 groups occurring as steeply NW-striking and NE-dipping (65–80°) are the largest Sb (−Au) orebodies, which extend up to over 1400 m long the strike and more than 1050 m down in dip with a thickness of 0.2 to 1.3 m wide. Furthermore, vein #23 also exhibits a high grade of Sb-Au ores. Notably, W mineralization is recently identified in the NW-striking vein #2 and NNE-striking vein #7. The mineral paragenesis for the Longshan deposit can be divided into two main stages. Stage 1 is Au mineralization, which is characterized by a large number of euhedral coarse auriferous pyrite grains with fractured texture. Stage 2 is distinguished by NW-striking and NNE-striking quartz-stibnite veins, which occurs along the periphery of auriferous pyrite from Stage 1 or fills within its fissures; scheelite associated with stibnite can be seen in this stage.
The Jiangkou Formation is divided into four subformations from the bottom to the top. The first and second subformations are primarily composed of gray-green tuffaceous sandy slate and pebbly slate with intercalated sericite slate. The third and fourth subformations are dominated by gray-green to gray-black gravel-bearing sandy slate and sericite slate. The orebodies of the Longshan deposit mainly occur in the first subformation, while the second subformation contains only part of the orebody in the Xiejiashan deposit. There is no mineralization in the third and fourth stages.
Carlin-type deposit. Sb-Au ore deposit (3.7 Mt @4.5 wt. % Sb and 4.6 g/t Au)
Located on the boundary between Xinshao and Linyuan counties.
24 NE-striking and NW-striking vein groups.
Hydrothermal alterations include sericitization, silicification, and sulfidation.
The Longshan Sb-Au deposit (3.7 Mt @4.5 wt. % Sb and 4.6 g/t Au) contains two mining zones: Longshan and Xiejiashan.
The main ore-hosting strata consist of the upper part of the Jiangkou Formation of the lower Sinian system, which is composed of shallowly metamorphosed clastic rocks with a total thickness exceeding 1800 m. The upper part of the Jiangkou Formation is divided into four sub-sections, with the conglomeratic sandy slate and conglomeratic slate being the primary Sb-Au ore-hosting layers.
Orebodies in the Longshan deposit primarily occur as veins, strictly controlled by NE-striking and NW-striking faults. The Sb and Au mineralization within these ore veins exhibits a significant spatial overlap. A total of 24 NE-striking and NW-striking vein groups have been identified in this deposit. The vein #1 and vein #2 groups occurring as steeply NW-striking and NE-dipping (65–80°) are the largest Sb (−Au) orebodies, which extend up to over 1400 m long the strike and more than 1050 m down in dip with a thickness of 0.2 to 1.3 m wide. Furthermore, vein #23 also exhibits a high grade of Sb-Au ores. Notably, W mineralization is recently identified in the NW-striking vein #2 and NNE-striking vein #7. The mineral paragenesis for the Longshan deposit can be divided into two main stages. Stage 1 is Au mineralization, which is characterized by a large number of euhedral coarse auriferous pyrite grains with fractured texture. Stage 2 is distinguished by NW-striking and NNE-striking quartz-stibnite veins, which occurs along the periphery of auriferous pyrite from Stage 1 or fills within its fissures; scheelite associated with stibnite can be seen in this stage.
The Jiangkou Formation is divided into four subformations from the bottom to the top. The first and second subformations are primarily composed of gray-green tuffaceous sandy slate and pebbly slate with intercalated sericite slate. The third and fourth subformations are dominated by gray-green to gray-black gravel-bearing sandy slate and sericite slate. The orebodies of the Longshan deposit mainly occur in the first subformation, while the second subformation contains only part of the orebody in the Xiejiashan deposit. There is no mineralization in the third and fourth stages.
Carlin-type deposit. Sb-Au ore deposit (3.7 Mt @4.5 wt. % Sb and 4.6 g/t Au)
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
23 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 Gold | 1.AA.05 | Au |
| ⓘ | Native Antimony | 1.CA.05 | Sb |
| 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 |
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| ⓘ | Pyrite var. Gold-bearing Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 2.EB.05a | FeS2 | |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| ⓘ | Chalcostibite | 2.HA.05 | CuSbS2 |
| ⓘ | Jamesonite | 2.HB.15 | Pb4FeSb6S14 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Valentinite | 4.CB.55 | Sb2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | 'Wolframite Group' | 4.DB.30 va | |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Valentinite | Sb2O3 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3A |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Pyrite var. Gold-bearing Pyrite | FeS2 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcostibite | CuSbS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Jamesonite | Pb4FeSb6S14 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Stibnite | Sb2S3 |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| K | Potassium | |
| 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 | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Ti | Titanium | |
| Ti | ⓘ Rutile | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Pyrite var. Gold-bearing Pyrite | FeS2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Jamesonite | Pb4FeSb6S14 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Siderite | FeCO3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcostibite | CuSbS2 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Sb | Antimony | |
| Sb | ⓘ Native Antimony | Sb |
| Sb | ⓘ Chalcostibite | CuSbS2 |
| Sb | ⓘ Jamesonite | Pb4FeSb6S14 |
| Sb | ⓘ Stibnite | Sb2S3 |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | ⓘ Valentinite | Sb2O3 |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Jamesonite | Pb4FeSb6S14 |
Other Regions, Features and Areas containing this locality
AsiaContinent
China
- Giant Sb metallogenic beltMineral Belt
- Xuefengshan Gold ClusterMining Area
Eurasian Plate
- Eastern Yangtze CratonCraton
- Xiangzhong metallogenic provinceMineral Province
Yangtze PlateTectonic Plate
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References
Zhang, Zhiyuan; Xie, Guiqing; Mao, Jingwen; Liu, Wengang; Olin, Paul; Li, Wei (2019) Sm-Nd Dating and In-Situ LA-ICP-MS Trace Element Analyses of Scheelite from the Longshan Sb-Au Deposit, Xiangzhong Metallogenic Province, South China. Minerals, 9 (2). 87 doi:10.3390/min9020087
Zhang, Zhiyuan; Xie, Guiqing; Olin, Paul (2022) Texture, in-situ geochemical, and S isotopic analyses of pyrite and arsenopyrite from the Longshan Sb-Au deposit, southern China: Implications for the genesis of intrusion-related Sb-Au deposit. Ore Geology Reviews, 143. doi:10.1016/j.oregeorev.2022.104781
[1]Zhao, Hongtao, Liu, Mingrui, Zhang, Yu, Shao, Yongjun, Yu, Zequn, Cao, Genshen, Zhao, Lianjie, Li, Yongshun (2024) Machine learning for deciphering ore-forming fluid sources using scheelite trace element geochemistry. Ore Geology Reviews, 175. 106374 doi:10.1016/j.oregeorev.2024.106374
[2]Hou, Xia-Nan; Fu, Shan-Ling; Kong, Hua; Liu, Biao; Tang, Yan-Wen; Huang, Jin-Gang (2025) Is there superimposed mineralization occurring within the Longshan Sb-Au deposit, South China? A perspective from U-Pb dating of apatite and in-situ S isotopes of pyrite and stibnite. Ore Geology Reviews, 181. 106631 doi:10.1016/j.oregeorev.2025.106631
