Samiresy, Tritriva, Betafo, Vakinankaratra, Madagascari
Regional Level Types | |
---|---|
Samiresy | - not defined - |
Tritriva | Commune |
Betafo | District |
Vakinankaratra | Region |
Madagascar | Country |

Name in Malagasy: | Samiresy, Kaominin'i Tritriva, Distrikan'i Betafo, Vakinankaratra, Madagasikara |
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Latitude & Longitude (WGS84): | 19° 58' 9'' South , 46° 52' 53'' East | ||||||||||||
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Latitude & Longitude (decimal): | -19.96943,46.88141 | ||||||||||||
GeoHash: | G#: mh3q6udj8 | ||||||||||||
Köppen climate type: | Cwb : Subtropical highland climate or temperate oceanic climate with dry winters | ||||||||||||
Nearest Settlements: |
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The locality Samiresy covers a number of pegmatite dikes (classified as potassic pegmatites after A. Lacroix 1922) worked for minerals containing U, beryl and rose quartz.
It is located SW of Tritriva and about 20 km SW of the town Antsirabe in the main highland of Madagascar.
One of these dikes is the type locality of the now discredited "samiresite", a plumbian uranpyrochlore.
Regions containing this locality
Somali Plate (Somalia Plate) | Plate |
Antananarivo Province, Madagascar | Province (Abolished) |
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
ⓘ Beryl Formula: Be3Al2(Si6O18) |
ⓘ 'Biotite' |
ⓘ Bismite Formula: Bi2O3 |
ⓘ Bismuth Formula: Bi |
ⓘ Bismuthinite Formula: Bi2S3 |
ⓘ Bismutite Formula: (BiO)2CO3 |
ⓘ Columbite-(Fe) Formula: Fe2+Nb2O6 |
ⓘ Dravite Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ Euxenite-(Y) Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
ⓘ Goethite Formula: α-Fe3+O(OH) |
ⓘ Hematite Formula: Fe2O3 |
ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
ⓘ Monazite-(Ce) Formula: Ce(PO4) |
ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
ⓘ 'Psilomelane' |
ⓘ Pucherite Formula: Bi(VO4) |
ⓘ 'Pyrochlore Group' Formula: A2Nb2(O,OH)6Z |
ⓘ Pyromorphite Formula: Pb5(PO4)3Cl |
ⓘ Quartz Formula: SiO2 |
ⓘ Quartz var: Rose Quartz Formula: SiO2 |
ⓘ Rutile Formula: TiO2 |
ⓘ Rutile var: Ilmenorutile Formula: Fex(Nb,Ta)2x · 4Ti1-xO2 |
ⓘ Rutile var: Strüverite Formula: (Ti,Ta,Fe)O2 |
ⓘ Samarskite-(Y) Formula: (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
ⓘ Schorl Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ Spessartine Formula: Mn2+3Al2(SiO4)3 |
ⓘ 'Uranpyrochlore (of Hogarth 1977)' Formula: (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
ⓘ 'Uranpyrochlore (of Hogarth 1977) var: Samiresite' Formula: (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
ⓘ Xenotime-(Y) Formula: Y(PO4) |
ⓘ Zircon Formula: Zr(SiO4) |
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Bismuth | 1.CA.05 | Bi |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Bismuthinite | 2.DB.05 | Bi2S3 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Bismite | 4.CB.60 | Bi2O3 |
ⓘ | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
ⓘ | Euxenite-(Y) | 4.DG.05 | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
ⓘ | Hematite | 4.CB.05 | Fe2O3 |
ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
ⓘ | 'Pyrochlore Group' | 4.00. | A2Nb2(O,OH)6Z |
ⓘ | Quartz | 4.DA.05 | SiO2 |
ⓘ | var: Rose Quartz | 4.DA.05 | SiO2 |
ⓘ | Rutile | 4.DB.05 | TiO2 |
ⓘ | var: Ilmenorutile | 4.DB.05 | Fex(Nb,Ta)2x · 4Ti1-xO2 |
ⓘ | var: Strüverite | 4.DB.05 | (Ti,Ta,Fe)O2 |
ⓘ | Samarskite-(Y) | 4.DB.25 | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
ⓘ | 'Uranpyrochlore (of Hogarth 1977)' | 4.DH.15 | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
ⓘ | 'var: Samiresite' | 4.DH.15 | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Bismutite | 5.BE.25 | (BiO)2CO3 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
ⓘ | Monazite-(Ce) | 8.AD.50 | Ce(PO4) |
ⓘ | Pucherite | 8.AD.40 | Bi(VO4) |
ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
ⓘ | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
Group 9 - Silicates | |||
ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
ⓘ | Dravite | 9.CK.05 | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
ⓘ | Schorl | 9.CK.05 | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'Biotite' | - | |
ⓘ | 'Psilomelane' | - |
List of minerals arranged by Dana 8th Edition classification
Group 1 - NATIVE ELEMENTS AND ALLOYS | |||
---|---|---|---|
Semi-metals and non-metals | |||
ⓘ | Bismuth | 1.3.1.4 | Bi |
Group 2 - SULFIDES | |||
AmBnXp, with (m+n):p = 2:3 | |||
ⓘ | Bismuthinite | 2.11.2.3 | Bi2S3 |
Group 4 - SIMPLE OXIDES | |||
A2X3 | |||
ⓘ | Bismite | 4.3.10.2 | Bi2O3 |
ⓘ | Hematite | 4.3.1.2 | Fe2O3 |
AX2 | |||
ⓘ | Rutile | 4.4.1.1 | TiO2 |
ⓘ | var: Ilmenorutile | 4.4.1.2 | Fex(Nb,Ta)2x · 4Ti1-xO2 |
ⓘ | var: Strüverite | 4.4.1.3 | (Ti,Ta,Fe)O2 |
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL | |||
XO(OH) | |||
ⓘ | Goethite | 6.1.1.2 | α-Fe3+O(OH) |
Group 7 - MULTIPLE OXIDES | |||
AB2X4 | |||
ⓘ | Magnetite | 7.2.2.3 | Fe2+Fe3+2O4 |
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM | |||
ABO4 | |||
ⓘ | Samarskite-(Y) | 8.1.11.1 | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
A2B2O6(O,OH,F) | |||
ⓘ | 'Pyrochlore Group' | 8.2.1.1 | A2Nb2(O,OH)6Z |
ⓘ | 'Uranpyrochlore (of Hogarth 1977)' | 8.2.1.7 | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
AB2O6 | |||
ⓘ | Columbite-(Fe) | 8.3.2.2 | Fe2+Nb2O6 |
ⓘ | Euxenite-(Y) | 8.3.8.2 | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN | |||
ⓘ | Bismutite | 16a.3.5.1 | (BiO)2CO3 |
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES | |||
AXO4 | |||
ⓘ | Monazite-(Ce) | 38.4.3.1 | Ce(PO4) |
ⓘ | Pucherite | 38.4.6.1 | Bi(VO4) |
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN | |||
A5(XO4)3Zq | |||
ⓘ | Pyromorphite | 41.8.4.1 | Pb5(PO4)3Cl |
Group 51 - NESOSILICATES Insular SiO4 Groups Only | |||
Insular SiO4 Groups Only with cations in [6] and >[6] coordination | |||
ⓘ | Spessartine | 51.4.3a.3 | Mn2+3Al2(SiO4)3 |
Insular SiO4 Groups Only with cations in >[6] coordination | |||
ⓘ | Zircon | 51.5.2.1 | Zr(SiO4) |
Group 61 - CYCLOSILICATES Six-Membered Rings | |||
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution | |||
ⓘ | Beryl | 61.1.1.1 | Be3Al2(Si6O18) |
Six-Membered Rings with borate groups | |||
ⓘ | Dravite | 61.3.1.9 | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ | Schorl | 61.3.1.10 | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
Sheets of 6-membered rings with 2:1 layers | |||
ⓘ | Muscovite | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
ⓘ | Quartz | 75.1.3.1 | SiO2 |
Unclassified Minerals, Mixtures, etc. | |||
ⓘ | 'Biotite' | - | |
ⓘ | 'Psilomelane' | - | |
ⓘ | Quartz var: Rose Quartz | - | SiO2 |
ⓘ | 'Uranpyrochlore (of Hogarth 1977) var: Samiresite' | - | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
ⓘ | Xenotime-(Y) | - | Y(PO4) |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
H | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
H | ⓘ Dravite | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
H | ⓘ Goethite | α-Fe3+O(OH) |
H | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
H | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Be | Beryllium | |
Be | ⓘ Beryl | Be3Al2(Si6O18) |
B | Boron | |
B | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
B | ⓘ Dravite | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
C | Carbon | |
C | ⓘ Bismutite | (BiO)2CO3 |
O | Oxygen | |
O | ⓘ Quartz | SiO2 |
O | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
O | ⓘ Quartz (var: Rose Quartz) | SiO2 |
O | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
O | ⓘ Magnetite | Fe2+Fe23+O4 |
O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
O | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
O | ⓘ Dravite | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
O | ⓘ Zircon | Zr(SiO4) |
O | ⓘ Xenotime-(Y) | Y(PO4) |
O | ⓘ Monazite-(Ce) | Ce(PO4) |
O | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
O | ⓘ Rutile (var: Ilmenorutile) | Fex(Nb,Ta)2x · 4Ti1-xO2 |
O | ⓘ Rutile (var: Strüverite) | (Ti,Ta,Fe)O2 |
O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
O | ⓘ Bismite | Bi2O3 |
O | ⓘ Goethite | α-Fe3+O(OH) |
O | ⓘ Hematite | Fe2O3 |
O | ⓘ Pucherite | Bi(VO4) |
O | ⓘ Beryl | Be3Al2(Si6O18) |
O | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
O | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
O | ⓘ Bismutite | (BiO)2CO3 |
O | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
O | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
O | ⓘ Rutile | TiO2 |
F | Fluorine | |
F | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
F | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Na | Sodium | |
Na | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
Na | ⓘ Dravite | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
Mg | Magnesium | |
Mg | ⓘ Dravite | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
Al | Aluminium | |
Al | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Al | ⓘ Dravite | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
Al | ⓘ Beryl | Be3Al2(Si6O18) |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ Quartz (var: Rose Quartz) | SiO2 |
Si | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Si | ⓘ Dravite | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
Si | ⓘ Zircon | Zr(SiO4) |
Si | ⓘ Beryl | Be3Al2(Si6O18) |
P | Phosphorus | |
P | ⓘ Xenotime-(Y) | Y(PO4) |
P | ⓘ Monazite-(Ce) | Ce(PO4) |
P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
S | Sulfur | |
S | ⓘ Bismuthinite | Bi2S3 |
Cl | Chlorine | |
Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
K | Potassium | |
K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Ca | Calcium | |
Ca | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
Ca | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ca | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
Ca | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ti | Titanium | |
Ti | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ti | ⓘ Rutile (var: Ilmenorutile) | Fex(Nb,Ta)2x · 4Ti1-xO2 |
Ti | ⓘ Rutile (var: Strüverite) | (Ti,Ta,Fe)O2 |
Ti | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ti | ⓘ Rutile | TiO2 |
V | Vanadium | |
V | ⓘ Pucherite | Bi(VO4) |
Mn | Manganese | |
Mn | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Fe | Iron | |
Fe | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Fe | ⓘ Rutile (var: Ilmenorutile) | Fex(Nb,Ta)2x · 4Ti1-xO2 |
Fe | ⓘ Rutile (var: Strüverite) | (Ti,Ta,Fe)O2 |
Fe | ⓘ Goethite | α-Fe3+O(OH) |
Fe | ⓘ Hematite | Fe2O3 |
Fe | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
Fe | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
Y | Yttrium | |
Y | ⓘ Xenotime-(Y) | Y(PO4) |
Y | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Y | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
Zr | Zirconium | |
Zr | ⓘ Zircon | Zr(SiO4) |
Nb | Niobium | |
Nb | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
Nb | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Nb | ⓘ Rutile (var: Ilmenorutile) | Fex(Nb,Ta)2x · 4Ti1-xO2 |
Nb | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
Nb | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
Nb | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
Nb | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ce | Cerium | |
Ce | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
Ce | ⓘ Monazite-(Ce) | Ce(PO4) |
Ce | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ce | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ta | Tantalum | |
Ta | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
Ta | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ta | ⓘ Rutile (var: Ilmenorutile) | Fex(Nb,Ta)2x · 4Ti1-xO2 |
Ta | ⓘ Rutile (var: Strüverite) | (Ti,Ta,Fe)O2 |
Ta | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
Ta | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Pb | Lead | |
Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
Bi | Bismuth | |
Bi | ⓘ Bismuth | Bi |
Bi | ⓘ Bismite | Bi2O3 |
Bi | ⓘ Bismuthinite | Bi2S3 |
Bi | ⓘ Pucherite | Bi(VO4) |
Bi | ⓘ Bismutite | (BiO)2CO3 |
Th | Thorium | |
Th | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Th | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
U | Uranium | |
U | ⓘ Uranpyrochlore (of Hogarth 1977) (var: Samiresite) | (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) |
U | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
U | ⓘ Samarskite-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
U | ⓘ Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Geochronology
Mineralization age: Tonian : 915 ± 72 MaImportant note: This table is based only on rock and mineral ages recorded below and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.
Geologic Time | Rocks, Minerals and Events | ||||||
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Precambrian | |||||||
Proterozoic | |||||||
Neoproterozoic | |||||||
Tonian |
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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
Cambrian - Neoproterozoic 485.4 - 1000 Ma ID: 3306770 | Age: Neoproterozoic to Cambrian (485.4 - 1000 Ma) Lithology: Plutonic Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190] |
Ectasian - Calymmian 1200 - 1600 Ma ID: 3184647 | Mesoproterozoic crystalline metamorphic rocks Age: Mesoproterozoic (1200 - 1600 Ma) Lithology: Crystalline metamorphic 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
Samiresy, Tritriva, Betafo, Vakinankaratra, Madagascar