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Messum Crater, Messum Igneous Complex, Brandberg Area, Dâures, Erongo Region, Namibia

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Latitude & Longitude (WGS84): 21° 24' 45'' South , 14° 12' 44'' East
Latitude & Longitude (decimal): -21.41250,14.21222
GeoHash:G#: kk4n5mvp0
Locality type:Crater
Köppen climate type:BWk : Cold desert climate


A large circular, alkaline igneous ring complex ~23 km in diameter, about half of which is obscured by sand and scree. The arcuate mountains form the outer ring and an inner ring surrounds a central group of domes, well exposed in the Messum crater. The complex consists of a large number of diverse rocks including basalt and porphyritic lavas, foyaite, tinguaite, syenite, granites, gabbro, anorthosite and others. The age of the intrusion is ~122 Ma.

The Messum Crater (21°21'45.50"S 14°25'7.61"E), which is over 20 km in diameter, is a secluded volcanic feature in the Goboboseb Mountains west of Brandberg, Namibia. It was one of the volcanoes of the Etendeka period, about 133 million years ago.

Note: Most of this area is protected as a national park, it is ecologically very sensitive, if you visit make sure you keep to existing tracks.



Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


25 valid minerals.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
Albite
Formula: Na(AlSi3O8)
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 446 (in English)
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 447 (in English)
Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
'Apatite'
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
'Biotite'
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 271 (in English)
Calcite
Formula: CaCO3
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
'Chlorite Group' ?
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 271 (in English)
Elbaite ?
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Description: Dark green crystals rarely found
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Eudialyte
Formula: Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
'Feldspar Group'
Reference: Egil Hollund Collection
Fluorite
Formula: CaF2
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
Goethite
Formula: α-Fe3+O(OH)
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Gypsum
Formula: CaSO4 · 2H2O
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 271 (in English)
Hastingsite
Formula: {Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Microcline
Formula: K(AlSi3O8)
Description: A cavity found in the mid 70's had several hundred Microcline specimens as elongated crystals up to 25cm, occasional with smoky Quartz crystals.
Reference: Peter Seroka collection. Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Nepheline
Formula: Na3K(Al4Si4O16)
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
Orthoclase
Formula: K(AlSi3O8)
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Pyrite
Formula: FeS2
Description: Altered to Geothite
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Quartz
Formula: SiO2
Description: Occasionally pale Amethyst is found usually only pale Smoky Quartz in most cavities.
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Quartz var: Amethyst
Formula: SiO2
Reference: Peter Seroka collection
Quartz var: Sceptre Quartz
Formula: SiO2
Description: Sceptre development of the Quartz is varied and often bizarre.
Reference: Peter Seroka collection. Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Egil Hollund Collection
Rutile
Formula: TiO2
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 271 (in English)
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Scolecite
Formula: CaAl2Si3O10 · 3H2O
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 271 (in English)
Sodalite
Formula: Na8(Al6Si6O24)Cl2
Reference: Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
'Stilbite subgroup'
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 271 (in English)
Topaz
Formula: Al2(SiO4)(F,OH)2
Description: Only a single specimen of Topaz has been found on these plains, it is suggested that it may have been carried here by nomadic prehistoric hunters-gatheres whose stone tools are sometimes noted.
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Zircon
Formula: Zr(SiO4)
Description: Found in vugs with dark smoky Quartz as small crystals with dark contact halos in the Quartz.
Reference: Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Sceptre Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
'Aegirine'9.DA.25NaFe3+Si2O6
'Aegirine-augite'9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
'Albite'9.FA.35Na(AlSi3O8)
'Allanite-(Ce)'9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Analcime9.GB.05Na(AlSi2O6) · H2O
Elbaite ?9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Eudialyte9.CO.10Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Hastingsite9.DE.15{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Microcline9.FA.30K(AlSi3O8)
Nepheline9.FA.05Na3K(Al4Si4O16)
Orthoclase9.FA.30K(AlSi3O8)
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Scolecite9.GA.05CaAl2Si3O10 · 3H2O
Sodalite9.FB.10Na8(Al6Si6O24)Cl2
Topaz9.AF.35Al2(SiO4)(F,OH)2
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
Apatite-
Biotite-
Chlorite Group ?-
Feldspar Group-
Stilbite subgroup-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Elbaite ?61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 64 - CYCLOSILICATES Rings with Other Anions and Insular Silicate Groups
Rings with Other Anions and Insular Silicate Groups with mixed ring types
Eudialyte64.1.1.1Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Aegirine-augite65.1.3b.2(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Orthoclase76.1.1.1K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
Nepheline76.2.1.2Na3K(Al4Si4O16)
Sodalite76.2.3.1Na8(Al6Si6O24)Cl2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Scolecite77.1.5.5CaAl2Si3O10 · 3H2O
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Biotite'-
'Chlorite Group' ?-
'Feldspar Group'-
Hastingsite-{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Quartz
var: Amethyst
-SiO2
var: Sceptre Quartz-SiO2
var: Smoky Quartz-SiO2
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
H AnalcimeNa(AlSi2O6) · H2O
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
H Goethiteα-Fe3+O(OH)
H GypsumCaSO4 · 2H2O
H Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H ScoleciteCaAl2Si3O10 · 3H2O
H TopazAl2(SiO4)(F,OH)2
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
BBoron
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C CalciteCaCO3
OOxygen
O AegirineNaFe3+Si2O6
O Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
O AlbiteNa(AlSi3O8)
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O Quartz (var: Amethyst)SiO2
O AnalcimeNa(AlSi2O6) · H2O
O CalciteCaCO3
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
O Goethiteα-Fe3+O(OH)
O GypsumCaSO4 · 2H2O
O Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O NephelineNa3K(Al4Si4O16)
O OrthoclaseK(AlSi3O8)
O QuartzSiO2
O RutileTiO2
O Quartz (var: Sceptre Quartz)SiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O ScoleciteCaAl2Si3O10 · 3H2O
O Quartz (var: Smoky Quartz)SiO2
O SodaliteNa8(Al6Si6O24)Cl2
O TopazAl2(SiO4)(F,OH)2
O ZirconZr(SiO4)
FFluorine
F FluoriteCaF2
F TopazAl2(SiO4)(F,OH)2
NaSodium
Na AegirineNaFe3+Si2O6
Na Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Na AlbiteNa(AlSi3O8)
Na AnalcimeNa(AlSi2O6) · H2O
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Na Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Na NephelineNa3K(Al4Si4O16)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na SodaliteNa8(Al6Si6O24)Cl2
MgMagnesium
Mg Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
AlAluminium
Al Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Al AlbiteNa(AlSi3O8)
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Al AnalcimeNa(AlSi2O6) · H2O
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Al MicroclineK(AlSi3O8)
Al NephelineNa3K(Al4Si4O16)
Al OrthoclaseK(AlSi3O8)
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al ScoleciteCaAl2Si3O10 · 3H2O
Al SodaliteNa8(Al6Si6O24)Cl2
Al TopazAl2(SiO4)(F,OH)2
SiSilicon
Si AegirineNaFe3+Si2O6
Si Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Si AlbiteNa(AlSi3O8)
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Si Quartz (var: Amethyst)SiO2
Si AnalcimeNa(AlSi2O6) · H2O
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Si Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Si MicroclineK(AlSi3O8)
Si NephelineNa3K(Al4Si4O16)
Si OrthoclaseK(AlSi3O8)
Si QuartzSiO2
Si Quartz (var: Sceptre Quartz)SiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si ScoleciteCaAl2Si3O10 · 3H2O
Si Quartz (var: Smoky Quartz)SiO2
Si SodaliteNa8(Al6Si6O24)Cl2
Si TopazAl2(SiO4)(F,OH)2
Si ZirconZr(SiO4)
SSulfur
S GypsumCaSO4 · 2H2O
S PyriteFeS2
ClChlorine
Cl EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Cl SodaliteNa8(Al6Si6O24)Cl2
KPotassium
K MicroclineK(AlSi3O8)
K NephelineNa3K(Al4Si4O16)
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Ca FluoriteCaF2
Ca GypsumCaSO4 · 2H2O
Ca Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Ca ScoleciteCaAl2Si3O10 · 3H2O
TiTitanium
Ti RutileTiO2
MnManganese
Mn EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
FeIron
Fe AegirineNaFe3+Si2O6
Fe Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Fe Goethiteα-Fe3+O(OH)
Fe Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
ZrZirconium
Zr EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Zr ZirconZr(SiO4)
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)

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

Cretaceous - Jurassic
66 - 201.3 Ma



ID: 3307724

Age: Mesozoic (66 - 201.3 Ma)

Lithology: Plutonic

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

Early Cretaceous
100.5 - 145 Ma



ID: 3192353
Mesozoic volcanic rocks

Age: Early Cretaceous (100.5 - 145 Ma)

Stratigraphic Name: Etendeka Flood Basalt

Lithology: Mafic volcanic 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]

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

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Korn, H. & Martin, H. (1955): The Messum igneous complex in South-West Africa. Transactions Geological Society of South Africa, 57, 83-124.
Wooley, A.R. (2001): Alkaline rocks and carbonatites of the world, Part 3: Africa. Geological Society, London. 210-211.
Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)

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