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Lanshan Fe-Mn deposit, Lanshan Co., Yongzhou, Hunan, Chinai
Regional Level Types
Lanshan Fe-Mn depositDeposit
Lanshan Co.County
YongzhouPrefecture-level City
HunanProvince
ChinaCountry

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Latitude & Longitude (WGS84):
25° 23' 30'' North , 112° 18' 30'' East
Latitude & Longitude (decimal):
25.39167,112.30833
GRN:
N17E73
Type:
Deposit
Köppen climate type:
Cfa : Humid subtropical climate
Mindat Locality ID:
157305
Long-form identifier:
mindat:1:2:157305:6
GUID (UUID V4):
0
Other/historical names associated with this locality:
Maojun laterite Fe–Mn deposit


The Maojun laterite Fe–Mn deposit consists of two main ore bodies: the I ore body extends in a NE–SW direction, while the II ore body extends in a NW–SE direction. The ore bodies’ orientation is influenced by two sets of fissures with NE–SW and NW–SE directions. The ore body is narrowly or weakly mineralized in the area where the joints are not developed. The stratified and stratiform ore body has nearly horizontal occurrence with thickness ranging from 0 to 35 m, with typical values of 15 to 30 m. The karstification is deep in the Maojun mine area, and as a result, the surface morphology of the underlying bedrock appears as unevenly dissolved landforms. The top of the bedrock is undulating, and many dissolution fissures and holes have developed in the earthy Fe–Mn-bearing ore layer. From the bottom to the top of the regolith, the various horizons are identified as bedrock (ferromanganese dolomite and dolomitic limestone), soft black–brown clay (clay soil rich in Fe–Mn oxide), red clay (clay soil containing tiny particles of Fe–Mn oxide) and, finally, saprolite (reddish and yellowish clay bed). The ore-bearing regolith can be divided into three zones.

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


14 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:

ⓘ Calcite
Formula: CaCO3
ⓘ Chalcophanite
Formula: ZnMn4+3O7 · 3H2O
ⓘ Coronadite
Formula: Pb(Mn4+6Mn3+2)O16
ⓘ Cryptomelane
Formula: K(Mn4+7Mn3+)O16
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ Hollandite
Formula: Ba(Mn4+6Mn3+2)O16
ⓘ 'Hollandite Supergroup'
Formula: A2+[M4+6M3+2]O16
ⓘ Jacobsite
Formula: Mn2+Fe3+2O4
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ Kaolinite var. Fe-Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ 'Limonite'
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Pyrochroite
Formula: Mn(OH)2
ⓘ Pyrolusite
Formula: Mn4+O2
ⓘ Quartz
Formula: SiO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘJacobsite4.BB.05Mn2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘPyrolusite4.DB.05Mn4+O2
ⓘCoronadite4.DK.05aPb(Mn4+6Mn3+2)O16
ⓘCryptomelane4.DK.05aK(Mn4+7Mn3+)O16
ⓘHollandite4.DK.05aBa(Mn4+6Mn3+2)O16
ⓘPyrochroite4.FE.05Mn(OH)2
ⓘChalcophanite4.FL.20ZnMn4+3O7 · 3H2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘvar. Fe-Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
ⓘ'Limonite'-
ⓘ'Hollandite Supergroup'-A2+[M4+6M3+2]O16

List of minerals for each chemical element

HHydrogen
Hⓘ ChalcophaniteZnMn34+O7 · 3H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ PyrochroiteMn(OH)2
Hⓘ Kaolinite var. Fe-KaoliniteAl2(Si2O5)(OH)4
CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ CalciteCaCO3
Oⓘ ChalcophaniteZnMn34+O7 · 3H2O
Oⓘ CoronaditePb(Mn64+Mn23+)O16
Oⓘ CryptomelaneK(Mn74+Mn3+)O16
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ HollanditeBa(Mn64+Mn23+)O16
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ JacobsiteMn2+Fe23+O4
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ PyrochroiteMn(OH)2
Oⓘ PyrolusiteMn4+O2
Oⓘ QuartzSiO2
Oⓘ Kaolinite var. Fe-KaoliniteAl2(Si2O5)(OH)4
Oⓘ Hollandite SupergroupA2+[M64+M23+]O16
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
AlAluminium
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Kaolinite var. Fe-KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Kaolinite var. Fe-KaoliniteAl2(Si2O5)(OH)4
KPotassium
Kⓘ CryptomelaneK(Mn74+Mn3+)O16
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
MnManganese
Mnⓘ ChalcophaniteZnMn34+O7 · 3H2O
Mnⓘ CoronaditePb(Mn64+Mn23+)O16
Mnⓘ CryptomelaneK(Mn74+Mn3+)O16
Mnⓘ HollanditeBa(Mn64+Mn23+)O16
Mnⓘ JacobsiteMn2+Fe23+O4
Mnⓘ PyrochroiteMn(OH)2
Mnⓘ PyrolusiteMn4+O2
FeIron
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ JacobsiteMn2+Fe23+O4
ZnZinc
Znⓘ ChalcophaniteZnMn34+O7 · 3H2O
BaBarium
Baⓘ HollanditeBa(Mn64+Mn23+)O16
PbLead
Pbⓘ CoronaditePb(Mn64+Mn23+)O16

Other Regions, Features and Areas containing this locality

AsiaContinent
China
Eurasian Plate
Yangtze PlateTectonic Plate

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References

Shangguo Zhou, Qunhe Fu, and Yongji Wang (2005): Discussion on ore formation mechanism of Lanshan style oxidized Fe-Mn deposit in southern Hunan province. Contributions To Geology and Mineral Resources Research 20(s1), 108-110 (in Chinese with English abstract).
[1]Zhao, Liqun; Niu, Sida; Zhou, Shangguo; Li, Lei; Huang, Fei; Wang, Yingchao; Niu, Xianglong; Chen, Tong; Mo, Lingchao; Zhang, Min (2024) New insight into genesis of the Maojun laterite Fe–Mn deposit in the Lanshan area, Hunan Province, South China: Evidence from detailed mineralogical and geochemical studies. Ore Geology Reviews, 165. doi:10.1016/j.oregeorev.2024.105900
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