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Ershiyizhan Cu-(Au) deposit, Tahe County, Daxing'anling, Heilongjiang, Chinai
Regional Level Types
Ershiyizhan Cu-(Au) depositDeposit
Tahe CountyCounty
Daxing'anlingPrefecture
HeilongjiangProvince
ChinaCountry

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Latitude & Longitude (WGS84):
52° 30' 10'' North , 125° 40' 5'' East
Latitude & Longitude (decimal):
52.50278,125.66806
GRN:
N36E55
Type:
Deposit
Köppen climate type:
Dwc : Monsoon-influenced subarctic climate
Mindat Locality ID:
144451
Long-form identifier:
mindat:1:2:144451:6
GUID (UUID V4):
0
Name(s) in local language(s):
二十一站金矿, 塔河县, 大兴安岭地区, 黑龙江省, 中国


Small-scale porphyry Cu-(Au) deposit, located in a Jurassic-Cretaceous volcanic-sedimentary basin. NE and NW-trending faults control the distribution of plutonic-volcanic belt. The deposit consists of veinlets and disseminations of gold and Cu and Mo sulphides in granite porphyry and quartz diorite. Cu minerals occur in the inner zone of the intrusion, whereas Au occurs in the outer zone. Alterations include K feldspar, silica, quartz-sericite, chlorite, and carbonate alterations. The deposit is closely related to silica alteration.

There are three metallogenic stages of this deposit, (1) Quartz-K-feldspar-polymetallic sulfide stage (stage Ⅰ), (2) quartz-polymetallic sulfide stage (stage II), and (3) quartz-calcite ± pyrite stage (stage Ⅲ). More than 3.4 × 104 tons of Cu and 1.1 × 103 Kg of Au; Cu grade 0.21–0.78 % and Au grade 3.52 –15.20 g/t. The main geological units in the Ershiyizhan District are the intrusive complex and the Ershierzhan Formation. From old to new, the lithologies in the intrusive complex are monzogranite (206.9 ± 1.8 Ma), granite (194.9 ± 1.3 Ma), quartz syenite (186.5 ± 1.3 Ma), and quartz monzonite porphyry (133.2 ± 1.0 Ma). Ershiyizhan is estimated to contain 77 copper orebodies and 56 gold orebodies, which are vein-like and have a thickness of 1–3 m. The mineralization of this deposit is characterized by plentiful veinlets, disseminated ores, and minor veins. The average Au and Cu grades are 1.99 × 10-6 and 0.34 × 10-2, respectively. Copper orebodies mainly occur in the quartz monzonite porphyry dikes with silicification and K-feldspathization alteration and the surrounding altered granites in the northern part of the mining area. Sericitized and silicified monzongranite is the primary host of gold orebodies, with the contact zones (both internal and external) between the Ershierzhan Formation and granite body also bearing evidence of gold mineralization.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘArsenopyrite
Formula:FeAsS
ⓘ'Biotite'
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘBornite
Formula:Cu5FeS4
ⓘCalcite
Formula:CaCO3
ⓘChalcopyrite
Formula:CuFeS2
ⓘ'Chlorite Group'
ⓘEpidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘGalena
Formula:PbS
ⓘKaolinite
Formula:Al2(Si2O5)(OH)4
ⓘ'K Feldspar'
ⓘ'Limonite'
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘMuscovite var. Sericite
Formula:KAl2(AlSi3O10)(OH)2
ⓘNative Gold
Formula:Au
ⓘ'Plagioclase'
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
ⓘPyrite
Formula:FeS2
ⓘQuartz
Formula:SiO2
ⓘSphalerite
Formula:ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-

List of minerals for each chemical element

HHydrogen
HⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
HⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
HⓘKaoliniteAl2(Si2O5)(OH)4
HⓘMuscoviteKAl2(AlSi3O10)(OH)2
HⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
CCarbon
CⓘCalciteCaCO3
OOxygen
OⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
OⓘCalciteCaCO3
OⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OⓘKaoliniteAl2(Si2O5)(OH)4
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘQuartzSiO2
OⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
OⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
FⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
NaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
MgⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
AlⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
AlⓘKaoliniteAl2(Si2O5)(OH)4
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
AlⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
SiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
SiⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiⓘKaoliniteAl2(Si2O5)(OH)4
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘQuartzSiO2
SiⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
SiⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
SⓘArsenopyriteFeAsS
SⓘBorniteCu5FeS4
SⓘChalcopyriteCuFeS2
SⓘGalenaPbS
SⓘPyriteFeS2
SⓘSphaleriteZnS
KPotassium
KⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
KⓘMuscoviteKAl2(AlSi3O10)(OH)2
KⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
CaⓘCalciteCaCO3
CaⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
CaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
TiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
FeⓘArsenopyriteFeAsS
FeⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeⓘBorniteCu5FeS4
FeⓘChalcopyriteCuFeS2
FeⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeⓘPyriteFeS2
CuCopper
CuⓘBorniteCu5FeS4
CuⓘChalcopyriteCuFeS2
ZnZinc
ZnⓘSphaleriteZnS
AsArsenic
AsⓘArsenopyriteFeAsS
AuGold
AuⓘNative GoldAu
PbLead
PbⓘGalenaPbS

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
Eurasian 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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Jiongfei Zhang, Heng Quan, Guang Wu, and Hongchen Zhu (2002): An Assessment of Prospects for Mineral Resources in Derbugan Metallogenic Province (Northern Part). Geology and Resources [Dizhi Yu Ziyuan] 11(1), 43-52.
Guangjiang Zhao, Yushu Hou, and Jiquan Yang (2006): Geological Characteristics and Metallogenic Model of Ershiyizhan Gold and Copper Deposits in Heilongjiang Province. Northwestern Geology 39(4), 33-39 (in Chinese with English abstract).
Chunhui Zhang, Qinglu Li, Jibo Yang, Bingjian Song, Zhizhong Ma, and Hengzhi Zhang (2010): The gold metallogenetic prognosis of Walagan-Baoxinggou area in Heilongjiang Province. Gold Science and Technology 18(2), 40-44 (in Chinese with English abstract).
[1]Yuan-Wang, Yuan-Zhao, Xian-Cheng (2024) Geology, fluid inclusion, 40Ar-39Ar geochronology, and isotope constraints on the ore genesis of the Ershiyizhan Cu–Au deposit, Heilongjiang Province, China.Ore Geology Reviews, 168. 106058doi:10.1016/j.oregeorev.2024.106058
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