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⇱ Shangxu Au deposit, Nyima Co. (Nima Co.), Nagqu, Tibet, China


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Shangxu Au deposit, Nyima Co. (Nima Co.), Nagqu, Tibet, Chinai
Regional Level Types
Shangxu Au depositDeposit
Nyima Co. (Nima Co.)County
NagquCity
TibetAutonomous Region
ChinaCountry

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Latitude & Longitude (WGS84):
31° 22' 35'' North , 87° 37' 46'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
260697
Long-form identifier:
mindat:1:2:260697:5
GUID (UUID V4):
0
Name(s) in local language(s):
商旭金矿床, 双湖县, 那曲地区 (ནག་ཆུ་ས་ཁུལ་), 西藏自治区, 中国


Orogenic Au: 6 t

Over 15 gold lodes have been verified at Shangxu. The ore bodies are generated by occurrences similar to those in strata and thrusts striking NWW and dipping at 48°–85° to the south, with lengths of > 54–1000 m, thicknesses of 1.3–4.5 m, extending to depths of > 70–160 m, varying in grades of 1–30 g/t with average grades of 2–15.5 g/t. Mineralization is developed as massive to laminated quartz veins, saddle reefs, breccias and disseminated sulfides, hosted by brecciated quartz and mixed clay-rich breccia matrix, which change outwards into intensively deformed and sheared wall rocks.
Hydrothermal fluids recorded three main stages based on mineral paragenesis. The earliest was a pre-ore barren quartz stage (H1). The basin sediment-sourced methane-bearing fluid led to early barren quartz veins and siderite alteration. After that, it was a gold mineralization stage (H2), which was constituted of a quartz–pyrite sub-stage (H2a) and a quartz–pyrite–sulfides sub-stage (H2b). The H2a sub-stage produced massive quartz veins with euhedral pyrite and gold. The following H2b sub-stage generated abundant quartz, granular pyrite, muscovite with minor chalcopyrite, galena, sphalerite and gold. The hydrothermal activity ended up with a carbonate–sulfide stage (H3), which was composed of an ankerite–sulfide sub-stage (H3a) and a calcite–sulfide sub-stage (H3b). The H3a sub-stage is distinguished by abundant ankerite, muscovite, sulfides with minor quartz and chlorite. The calcite–sulfide stage (H3b) is characterized by calcite, sulfides, with minor quartz and chlorite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


22 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Bornite
Formula: Cu5FeS4
Calcite
Formula: CaCO3
Calcite var. Iron-bearing Calcite
Formula: (Ca,Fe)CO3
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
References:
Cobaltite
Formula: CoAsS
Digenite
Formula: Cu9S5
Dolomite
Formula: CaMg(CO3)2
Galena
Formula: PbS
References:
Gersdorffite
Formula: NiAsS
Graphite
Formula: C
'Limonite'
Magnetite
Formula: Fe2+Fe3+2O4
Malachite
Formula: Cu2(CO3)(OH)2
Marcasite
Formula: FeS2
Millerite
Formula: NiS
'Monazite Group'
Formula: REE(PO4)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
References:
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Native Gold
Formula: Au
References:
Pyrite
Formula: FeS2
References:
Quartz
Formula: SiO2
References:
Rutile
Formula: TiO2
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold1.AA.05Au
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Digenite2.BA.10Cu9S5
Bornite2.BA.15Cu5FeS4
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Millerite2.CC.20NiS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Cobaltite2.EB.25CoAsS
Gersdorffite2.EB.25NiAsS
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Siderite5.AB.05FeCO3
Calcite
var. Iron-bearing Calcite
5.AB.05(Ca,Fe)CO3
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Chlorite Group'-
'Limonite'-
'Monazite Group'-REE(PO4)
'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
H ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C GraphiteC
C MalachiteCu2(CO3)(OH)2
C SideriteFeCO3
C Calcite var. Iron-bearing Calcite(Ca,Fe)CO3
OOxygen
O AlbiteNa(AlSi3O8)
O AnkeriteCa(Fe2+,Mg)(CO3)2
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O MagnetiteFe2+Fe23+O4
O MalachiteCu2(CO3)(OH)2
O Monazite GroupREE(PO4)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O RutileTiO2
O SideriteFeCO3
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
O Calcite var. Iron-bearing Calcite(Ca,Fe)CO3
O ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg DolomiteCaMg(CO3)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si AlbiteNa(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
P Monazite GroupREE(PO4)
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S BorniteCu5FeS4
S ChalcopyriteCuFeS2
S CobaltiteCoAsS
S DigeniteCu9S5
S GalenaPbS
S GersdorffiteNiAsS
S MarcasiteFeS2
S MilleriteNiS
S PyriteFeS2
S SphaleriteZnS
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca Calcite var. Iron-bearing Calcite(Ca,Fe)CO3
Ca ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Ti RutileTiO2
FeIron
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe SideriteFeCO3
Fe Calcite var. Iron-bearing Calcite(Ca,Fe)CO3
CoCobalt
Co CobaltiteCoAsS
NiNickel
Ni GersdorffiteNiAsS
Ni MilleriteNiS
CuCopper
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
Cu DigeniteCu9S5
Cu MalachiteCu2(CO3)(OH)2
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
AsArsenic
As CobaltiteCoAsS
As GersdorffiteNiAsS
SbAntimony
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
AuGold
Au Native GoldAu
PbLead
Pb GalenaPbS

Other Regions, Features and Areas containing this locality

AsiaContinent
China
Eurasian PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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