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Laoyachao Au deposit, Shuikoushan ore field, Changning Co., Hengyang, Hunan, Chinai
Regional Level Types
Laoyachao Au depositDeposit
Shuikoushan ore fieldOre Field
Changning Co.County
HengyangPrefecture-level City
HunanProvince
ChinaCountry

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Latitude & Longitude (WGS84):
26° 32' 45'' North , 112° 36' 16'' East
Latitude & Longitude (decimal):
26.54608,112.60463
GRN:
N18E72
Type:
Deposit
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Leiyang129,116(2012)29.9km
Hengyang759,602(2018)38.2km
Hongqiao58,287(2012)55.2km
Mindat Locality ID:
156929
Long-form identifier:
mindat:1:2:156929:5
GUID (UUID V4):
0
Name(s) in local language(s):
老鸦巢金矿, 水口山矿田, 常宁市, 衡阳市, 湖南省, 中国


Gold-bearing crypto-explosive breccia, occurring in the contact zone of a granodiorite intrusion with limestones of the Permian Qixia formation and shales and mudstones of the Dangchong formation. The mineralized zone is up to 560 m long, up to 150 m wide, and extends up to 500 m down dip. It contains more than 10 orebodies varying in shapes and sizes.

Orebodies at Laoyachao can be further categorized as skarn-type Fe-Cu-Au-(Zn-Pb) ores in the depth, skarn-type Pb-Zn(Fe-Cu) ores surrounding the fine-grained granodiorite in the shallow space, and breccia-type Au-Pb-Zn ores along the NNE-striking F1 fault. Fe-Cu-Au-(Zn-Pb) orebodies are of stringer or tubular shape and extend for 150~200 m. This type of ore contains mainly hematite, magnetite, garnet, chalcopyrite, and pyrite, with minor sphalerite, galena, and bornite contents observed under a microscope. Recent drilling work has discovered the extension of Fe-Cu-Au-(Zn-Pb) orebodies into the deeper region where the Cu grade can reach 0.79%. Pb-Zn-(Fe-Cu) ores generally take tubular or lenticular shapes and extend for 10~400 m, with Pb, Zn, Cu, and Au grades of 0.34~6.24%, 0.51~5.74%, 0.03~0.24%, and 1~5 g/t.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAnglesite
Formula:PbSO4
ⓘ'Apatite'
Formula:Ca5(PO4)3(Cl/F/OH)
ⓘAzurite
Formula:Cu3(CO3)2(OH)2
ⓘBismuthinite
Formula:Bi2S3
ⓘBornite
Formula:Cu5FeS4
ⓘCalcite
Formula:CaCO3
ⓘCerussite
Formula:PbCO3
ⓘChalcopyrite
Formula:CuFeS2
ⓘ'Chlorite Group'
ⓘDiopside
Formula:CaMgSi2O6
ⓘEpidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘFluorite
Formula:CaF2
ⓘGalena
Formula:PbS
ⓘ'Garnet Group'
Formula:X3Z2(SiO4)3
ⓘGoethite
Formula:Fe3+O(OH)
ⓘHematite
Formula:Fe2O3
ⓘ'Limonite'
ⓘMagnetite
Formula:Fe2+Fe3+2O4
ⓘMalachite
Formula:Cu2(CO3)(OH)2
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘMuscovite var. Sericite
Formula:KAl2(AlSi3O10)(OH)2
ⓘNative Gold
Formula:Au
ⓘNative Gold var. Electrum
Formula:(Au,Ag)
ⓘPyrite
Formula:FeS2
ⓘPyromorphite
Formula:Pb5(PO4)3Cl
ⓘQuartz
Formula:SiO2
ⓘQuartz var. Chalcedony
Formula:SiO2
ⓘSiderite
Formula:FeCO3
ⓘSphalerite
Formula:ZnS
ⓘ'Tetrahedrite Subgroup'
Formula:Cu6(Cu4C2+2)Sb4S12S
ⓘUraninite
Formula:UO2
ⓘUraninite var. Pitchblende
Formula:UO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold
var. Electrum		1.AA.05(Au,Ag)
ⓘ1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘBismuthinite2.DB.05Bi2S3
ⓘPyrite2.EB.05aFeS2
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘUraninite
var. Pitchblende		4.DL.05UO2
ⓘ4.DL.05UO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘCerussite5.AB.15PbCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnglesite7.AD.35PbSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘPyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘDiopside9.DA.15CaMgSi2O6
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
HⓘAzuriteCu3(CO3)2(OH)2
HⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
HⓘGoethiteFe3+O(OH)
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ⓘAzuriteCu3(CO3)2(OH)2
CⓘCalciteCaCO3
CⓘCerussitePbCO3
CⓘMalachiteCu2(CO3)(OH)2
CⓘSideriteFeCO3
OOxygen
OⓘAnglesitePbSO4
OⓘAzuriteCu3(CO3)2(OH)2
OⓘCalciteCaCO3
OⓘCerussitePbCO3
OⓘQuartz var.ChalcedonySiO2
OⓘDiopsideCaMgSi2O6
OⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OⓘGoethiteFe3+O(OH)
OⓘHematiteFe2O3
OⓘMagnetiteFe2+Fe23+O4
OⓘMalachiteCu2(CO3)(OH)2
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘUraninite var.PitchblendeUO2
OⓘPyromorphitePb5(PO4)3Cl
OⓘQuartzSiO2
OⓘSideriteFeCO3
OⓘUraniniteUO2
OⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
OⓘGarnet GroupX3Z2(SiO4)3
OⓘApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
FⓘFluoriteCaF2
FⓘApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
MgⓘDiopsideCaMgSi2O6
AlAluminium
AlⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
SiⓘQuartz var.ChalcedonySiO2
SiⓘDiopsideCaMgSi2O6
SiⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘQuartzSiO2
SiⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
SiⓘGarnet GroupX3Z2(SiO4)3
PPhosphorus
PⓘPyromorphitePb5(PO4)3Cl
PⓘApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
SⓘAnglesitePbSO4
SⓘBismuthiniteBi2S3
SⓘBorniteCu5FeS4
SⓘChalcopyriteCuFeS2
SⓘGalenaPbS
SⓘPyriteFeS2
SⓘSphaleriteZnS
SⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ClChlorine
ClⓘPyromorphitePb5(PO4)3Cl
ClⓘApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
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)
CaⓘFluoriteCaF2
CaⓘApatiteCa5(PO4)3(Cl/F/OH)
FeIron
FeⓘBorniteCu5FeS4
FeⓘChalcopyriteCuFeS2
FeⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeⓘGoethiteFe3+O(OH)
FeⓘHematiteFe2O3
FeⓘMagnetiteFe2+Fe23+O4
FeⓘPyriteFeS2
FeⓘSideriteFeCO3
CuCopper
CuⓘAzuriteCu3(CO3)2(OH)2
CuⓘBorniteCu5FeS4
CuⓘChalcopyriteCuFeS2
CuⓘMalachiteCu2(CO3)(OH)2
CuⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
ZnⓘSphaleriteZnS
AgSilver
AgⓘNative Gold var.Electrum(Au,Ag)
SbAntimony
SbⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
AuGold
AuⓘNative Gold var.Electrum(Au,Ag)
AuⓘNative GoldAu
PbLead
PbⓘAnglesitePbSO4
PbⓘCerussitePbCO3
PbⓘGalenaPbS
PbⓘPyromorphitePb5(PO4)3Cl
BiBismuth
BiⓘBismuthiniteBi2S3
UUranium
UⓘUraninite var.PitchblendeUO2
UⓘUraniniteUO2

Other Regions, Features and Areas containing this locality

AsiaContinent
China
Eurasian Plate
Yangtze 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, 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

Li Peilan and Yu Xingzhen (1995): Brecciation and gold mineralization of ore－hosting rocks in Laoyachao gold deposit. Transactions of Nonferrous Metals Society of China 5(2), 712.
Li Peilan and Yu Xingzhen (1996): Locating mechanism study of several types of gold deposits. Journal of Central South University of Technology 3(1), 54-57.
Qiong Cao, Xucheng Pang, Keyong Wan, Huabiao Luo, and Jiangtao Si (2014): Geological characteristics and indication for prospecting in Laoyachao cryptoexplosive breccia pipe gold deposit, Hunan Province. Gold Science and Technology 22(1), 15-21 (in Chinese with English abstract).
[1]Wang, Jionghui, Du, Yulong, Zhang, Fanghua, Li, Qiushi, Zuo, Changhu, Zhang, Xi, Wang, Yong, Wu, Jiangwei, Ma, Shengchao (2023) Deeply Derived Magma Controlling the Polymetallic Mineralization at Shuikoushan, South China: Constraints from Mineral U–Pb Dating and Whole-Rock Geochemistry.Minerals, 13 (12)doi:10.3390/min13121508
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