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Yanhe Cu ore field, Ludian County, Zhaotong, Yunnan, Chinai
Regional Level Types
Yanhe Cu ore fieldOre Field
Ludian CountyCounty
ZhaotongPrefecture-level City
YunnanProvince
ChinaCountry

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06786700017272268925650.jpg
Native Copper

Yanhe Cu ore field, Ludian County, Zhaotong, Yunnan, China
06786700017272268925650.jpg
Native Copper

Yanhe Cu ore field, Ludian County, Zhaotong, Yunnan, China
06786700017272268925650.jpg
Native Copper

Yanhe Cu ore field, Ludian County, Zhaotong, Yunnan, China
Latitude & Longitude (WGS84):
27° North , 103° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~36km
GRN:
N19E65
Type:
Ore Field
Köppen climate type:
Cwb : Subtropical highland climate or temperate oceanic climate with dry winters
Mindat Locality ID:
155771
Long-form identifier:
mindat:1:2:155771:1
GUID (UUID V4):
0
Name(s) in local language(s):
沿河铜矿田, 鲁甸县, 昭通市, 云南省, 中国


Basalt-type hydrothermal copper deposits, hosted along the Ludian syncline in the contact zone between Emeishan flood basalts and overlying Upper Permian coal-bearing clastic rocks of the Xuanwei formation. The area extends from southwest of Yanhe to northeast of Ludian and includes dozens of small deposits and occurrences. There also are numerous ancient mines in the area. More deposits of this type are found in Qiaojia County (e.g. Yangjiacun), Yongshan County (e.g. Maolin) and Zhaoyang District (e.g. Sujia) and in the adjoining Weining County of Guizhou Province.

The ore minerals are mainly native copper and chalcocite, minor copper oxides and occasionally subordinate amounts of sulphides. They occur as grains, irregular clusters and fracture fillings in layers consisting of basalt tuffs, tuffaceous lava and tuffaceous sedimentary rocks. In some localities, adjacent vesicular basalts are also mineralized. Gangue minerals are hydrothermal quartz and calcite. Individual ore bodies are a few meters thick and several tens of meters to 300 m long. The most common alteration related to the mineralization is zeolitization, which usually is extensively developed. Additional alterations are silicification, carbonatization and occasionally tremolitization and actinolitization.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

19 valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
Localities: Reported from at least 6 localities in this region.
ⓘ Chalcocite
Formula: Cu2S
Localities: Reported from at least 6 localities in this region.
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Cuprite
Formula: Cu2O
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 6 localities in this region.
ⓘ Native Copper
Formula: Cu
Localities: Reported from at least 7 localities in this region.
ⓘ 'Petroleum var. Bitumen'
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ 'Pumpellyite Subgroup'
Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyrobitumen'
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
ⓘ Siderite
Formula: FeCO3
ⓘ Tenorite
Formula: CuO
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ 'Zeolite Group'
Localities: Reported from at least 6 localities in this region.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘCuprite4.AA.10Cu2O
ⓘTenorite4.AB.10CuO
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘ'Zeolite Group'9.G0.
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Pumpellyite Subgroup'-Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
ⓘ'Petroleum
var. Bitumen'		-
ⓘ'Pyrobitumen'-

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SideriteFeCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ CalciteCaCO3
Oⓘ CupriteCu2O
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ HematiteFe2O3
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
Oⓘ TenoriteCuO
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
NaSodium
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Siⓘ QuartzSiO2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ PyriteFeS2
KPotassium
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ SideriteFeCO3
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ CupriteCu2O
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ TenoriteCuO

Localities in this Region

China

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

Bingquan Zhu, Xiangyang Chang, Yaoguo He, and Zhengwei Zhang (2002): Discovery of Yanhe Copper Deposit in the Yunnan-Guizhou Border Area and a New Train of Thought for Copper Prospecting in the Large Igneous Province of Emeishan Flood Basalts. Advances in Earth Science 17(6), 912-917 (in Chinese with English abstract).
Bingquan Zhu, Yaogou Hu, Zhengwei Zhang, and Xiangyang Chang (2003): Discovery of the copper deposits with features of the Keweenawan type in the border area of Yunnan and Guizhou provinces. Science in China, Series D (Earth Sciences), 46, 60-72.
Bingquan Zhu, Tongmo Dai, Yaoguo Hu, Zhengwei Zhang, Guanghao Chen, Jianhua Peng, Xianglin Tu, Dehan Liu, and Xiangyang Chang (2005): 40Ar/39Ar and U-Th-Pb Dating for Native Copper Mineralizations of Two Stages from the Emeishan Flood Basalts in Northeastern Yunnan Province, China. Geochimica 34(3), 235-247 (in Chinese with English abstract).
Houmin Li, Jingwen Mao, Yuchuan Chen, Denghong Wang, Changqing Zhang, and Hong Xu (2005): Epigenetic hydrothermal features of the Emeishan basalt copper mineralization in NE Yunnan, SW China. In: Jingwen Mao and Bierlein, F.P. (eds.): Mineral Deposit Research: Meeting the Global Challenge. Springer (Berlin, Heidelberg, New York), pp. 149-152.
Zhu Bingquan, Hu Yaoguo, Zhang Zhengwei, Cui Xuejun, Dai Tongmo, Chen Guanghao, Peng Jianhua, Sun Yongge, Liu Dehan, and Chang Xiangyang (2007): Geochemistry and geochronology of native copper mineralization related to the Emeishan flood basalts, Yunnan Province, China. Ore Geology Reviews 32, 366-380.
Qian Zhang, Dapeng Wang, Liangwu Fan, Xiaoqing Zhu, and Zhengwei Zhang (2008): Ore-forming regularity and prospects of Emeishan basalt-type native copper-chalcocite deposits in the adjoining area of Yunnan-Guizhou provinces. Geology and Prospecting 44(2), 8-13.
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