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Mumba cassiterite gravels, Mumba, Masisi Mts, Nord-Kivu, DR Congoi
Regional Level Types
Mumba cassiterite gravels- not defined -
Mumba- not defined -
Masisi MtsMountain Range
Nord-Kivu- not defined -
DR CongoCountry

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Key
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Latitude & Longitude (WGS84): 1° 49' South , 28° 49' East
Latitude & Longitude (decimal): -1.81667,28.81667
GeoHash:G#: kxsmxtr9j
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Sake17,151 (2012)36.9km
Goma144,124 (2012)48.4km
Other/historical names associated with this locality:Zaïre


The Mumba district occurs in a NE-SW synclinorium with granitic massifs on each side. The micaschists on the edges of the granites are topped by a schisto-quartzitic formation. The whole set is affected by the Kibaran (Mesoproterozoic) orogeny.

Regions containing this locality

African PlateTectonic Plate
Central AfricaRegion
Kivu, DR CongoRegion (Historical)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals. 1 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
'Microlite Group'4.00.A2-mTa2X6-wZ-n
'Plumbomicrolite (of Hogarth 1977)' (TL)4.DH.15
Rankamaite (TL)4.DM.05(Na,K)3(Ta,Nb,Al)11(O,OH)31
Simpsonite4.DC.10Al4(Ta,Nb)3O13(OH,F)
Tantalite-(Mn)4.DB.35Mn2+Ta2O6

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
'Plumbomicrolite (of Hogarth 1977)' (FRL)8.2.2.3
AB2O6
Tantalite-(Mn)8.3.2.3Mn2+Ta2O6
Miscellaneous
Rankamaite (TL)8.7.6.1(Na,K)3(Ta,Nb,Al)11(O,OH)31
Simpsonite8.7.5.1Al4(Ta,Nb)3O13(OH,F)

List of minerals for each chemical element

HHydrogen
H Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31
H SimpsoniteAl4(Ta,Nb)3O13(OH,F)
OOxygen
O Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31
O CassiteriteSnO2
O SimpsoniteAl4(Ta,Nb)3O13(OH,F)
O Tantalite-(Mn)Mn2+Ta2O6
NaSodium
Na Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31
AlAluminium
Al Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31
Al SimpsoniteAl4(Ta,Nb)3O13(OH,F)
KPotassium
K Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31
MnManganese
Mn Tantalite-(Mn)Mn2+Ta2O6
NbNiobium
Nb Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31
SnTin
Sn CassiteriteSnO2
TaTantalum
Ta Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31
Ta SimpsoniteAl4(Ta,Nb)3O13(OH,F)
Ta Tantalite-(Mn)Mn2+Ta2O6
Ta Microlite GroupA2-mTa2X6-wZ-n
PbLead
Pb Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31

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

Neoproterozoic - Stenian
541 - 1200 Ma



ID: 3186066
Mesoproterozoic-Neoproterozoic sedimentary rocks

Age: Proterozoic (541 - 1200 Ma)

Lithology: Sedimentary rocks

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]

Mesoproterozoic
1000 - 1600 Ma



ID: 3306531

Age: Mesoproterozoic (1000 - 1600 Ma)

Lithology: 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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Safiannikoff, A. and van Wambeke, L. (1961): Sur un terme plombifere du groupe pyrochlore-microlite. Bulletin de la Société Francaise de Minéralogie et de Cristallographie 84: 382-384.
Kristiansen, R. (2001): Sjeldne tantalniobater fra Sentral-Afrika. eksotiske minerallokaliteter II (Exotic mineral-locations II). STEIN 28 (2): 21-28 [notes on rankamaite and plumbomicrolite]


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