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Knefissat Nord, Chami, Inchiri Region, Mauritaniai
Regional Level Types
Knefissat Nord- not defined -
Chami- not defined -
Inchiri RegionRegion
MauritaniaCountry

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Latitude & Longitude (WGS84): 20° 49' 59'' North , 15° 34' 59'' West
Latitude & Longitude (decimal): 20.83330,-15.58330
GeoHash:G#: eesyt2sdf
Köppen climate type:BWh : Hot deserts climate


No description has been added for this locality. Can you add one?

Regions containing this locality

African PlateTectonic Plate
Sahara Desert, North AfricaDesert
West AfricaUN Subregion
Northwest Africa MeteoritesMeteorite Fall Location

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


3 valid minerals.

Detailed Mineral List:

Chrysotile
Formula: Mg3(Si2O5)(OH)4
Reference: Mauritanian Geological Survey (1995) database
Diaphorite
Formula: Ag3Pb2Sb3S8
Reference: Mauritanian Geological Survey (1995) database
Quartz
Formula: SiO2
Reference: Mauritanian Geological Survey (1995) database
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: Mauritanian Geological Survey (1995) database

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Diaphorite2.JB.05Ag3Pb2Sb3S8
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Chrysotile9.ED.15Mg3(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 3 - SULFOSALTS
2.5 < ø < 3
Diaphorite3.5.4.1Ag3Pb2Sb3S8
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Chrysotile71.1.5.1Mg3(Si2O5)(OH)4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H ChrysotileMg3(Si2O5)(OH)4
OOxygen
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O QuartzSiO2
O ChrysotileMg3(Si2O5)(OH)4
MgMagnesium
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg ChrysotileMg3(Si2O5)(OH)4
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si QuartzSiO2
Si ChrysotileMg3(Si2O5)(OH)4
SSulfur
S DiaphoriteAg3Pb2Sb3S8
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
AgSilver
Ag DiaphoriteAg3Pb2Sb3S8
SbAntimony
Sb DiaphoriteAg3Pb2Sb3S8
PbLead
Pb DiaphoriteAg3Pb2Sb3S8

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoarchean
2500 - 2800 Ma



ID: 3186906
Archean crystalline metamorphic rocks

Age: Neoarchean (2500 - 2800 Ma)

Lithology: Migmatite; paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoarchean
2800 - 3200 Ma



ID: 3311040

Age: Mesoarchean (2800 - 3200 Ma)

Lithology: Volcanic-sedimentary

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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