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Hougou Mine, Xiaozhangjiakou gold field, Chicheng County, Zhangjiakou, Hebei, Chinai
Regional Level Types
Hougou MineMine
Xiaozhangjiakou gold fieldOre Field
Chicheng CountyCounty
ZhangjiakouPrefecture-level City
HebeiProvince
ChinaCountry

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Latitude & Longitude (WGS84):
40° 54' 0'' North , 115° 36' 40'' East
Latitude & Longitude (decimal):
Type:
Mindat Locality ID:
144523
Long-form identifier:
mindat:1:2:144523:0
GUID (UUID V4):
e177cc77-5d7e-429c-bb08-e623f6372055
Name(s) in local language(s):
后沟金矿, 小张家口金矿田, 赤城县, 张家口市, 河北省, 中国


Alkaline complex-hosted gold deposit, occurring in the inner contact zone of an alkaline syenite that is overprinted by faults and fractures. The deposit is irregular and is concordant to the strike of the contact zone and the faults. Four deposition stages occur: (1) molybdenite-quartz, (2) quartz-pyrite, (3) base metallic sulphide, and (4) carbonate. Alteration includes epidote, chlorite, sericite, pyrite, and carbonate alterations. The gold deposition is interpreted as related to the shearing of the Archean Wulashan Group of metamorphic rocks. The deposit probably formed at about 80+/-5.6 Ma(?), based on the dating of sericite alteration.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


19 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Bornite
Formula: Cu5FeS4
Calcite
Formula: CaCO3
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Diopside
Formula: CaMgSi2O6
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Galena
Formula: PbS
'Garnet Group'
Formula: X3Z2(SiO4)3
Gold
Formula: Au
Gold var. Electrum
Formula: (Au,Ag)
Hematite
Formula: Fe2O3
Hematite var. Specularite
Formula: Fe2O3
Magnetite
Formula: Fe2+Fe3+2O4
Microcline
Formula: K(AlSi3O8)
Molybdenite
Formula: MoS2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
Quartz var. Chalcedony
Formula: SiO2
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
var. Electrum1.AA.05(Au,Ag)
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Bornite2.BA.15Cu5FeS4
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Pyrrhotite2.CC.10Fe1-xS
Galena2.CD.10PbS
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
var. Specularite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var. Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Siderite5.AB.05FeCO3
Group 9 - Silicates
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Diopside9.DA.15CaMgSi2O6
Muscovite
var. Sericite
9.EC.15KAl2(AlSi3O10)(OH)2
9.EC.15KAl2(AlSi3O10)(OH)2
Microcline9.FA.30K(AlSi3O8)
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
C SideriteFeCO3
OOxygen
O AlbiteNa(AlSi3O8)
O CalciteCaCO3
O Quartz var. ChalcedonySiO2
O DiopsideCaMgSi2O6
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SideriteFeCO3
O Hematite var. SpeculariteFe2O3
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
O Garnet GroupX3Z2(SiO4)3
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg DiopsideCaMgSi2O6
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Quartz var. ChalcedonySiO2
Si DiopsideCaMgSi2O6
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Si Garnet GroupX3Z2(SiO4)3
SSulfur
S BorniteCu5FeS4
S ChalcopyriteCuFeS2
S ChalcociteCu2S
S GalenaPbS
S MolybdeniteMoS2
S PyriteFeS2
S PyrrhotiteFe1-xS
S SphaleriteZnS
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeIron
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe SideriteFeCO3
Fe Hematite var. SpeculariteFe2O3
CuCopper
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
ZnZinc
Zn SphaleriteZnS
MoMolybdenum
Mo MolybdeniteMoS2
AgSilver
Ag Gold var. Electrum(Au,Ag)
AuGold
Au Gold var. Electrum(Au,Ag)
Au GoldAu
PbLead
Pb GalenaPbS

Geochronology

Mineralization age: Early Jurassic : 187.6 ± 0.4 Ma to 177.6 ± 1.9 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Mesozoic
  Jurassic
   Early Jurassic
ⓘ Quartz177.6 ± 1.9 Ma
ⓘ Sericite187.6 ± 0.4 Ma

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
China

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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