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Bassar phosphate occurrences, Bassar, Bassar Prefecture, Kara Region, Togoi
| Regional Level Types | |
|---|---|
| Bassar phosphate occurrences | Group of Occurrences |
| Bassar | Town |
| Bassar Prefecture | Prefecture |
| Kara Region | Region |
| Togo | Country |
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Latitude & Longitude (WGS84):
9° 15' 41'' North , 0° 50' 17'' East
Latitude & Longitude (decimal):
Type:
Group of Occurrences
Köppen climate type:
Name(s) in local language(s):
Bassar, Préfecture de Bassar, Région de Kara, Togo
The Bassar Phosphates occurrences of Togo are located within the Schist Group of Atacora and Buem Structural Units of the Dahomeyide Orogenic Belt (Neoproterozoic). These schists are considered tectonic and metamorphic equivalents of the Oti Supergroup (Vendian) of the Volta Basin.
The Bassar phosphatic sequence, up to 30 m in thickness, crop out intermittently over an 80 km strike and consists of interbedded phosphorites, phosphatic quartzites, and weakly phosphatic quartz-sericite schists. They have been subjected to at least 2 phases of deformation and are metamorphosed to Zeolite-Greenschist Facies.
Outcrops are lenticular in shape up to 10-25 m thick, 100 -2,500 m in length –sub-vertical to steeply-dipping to the east, locally duplicated and thickened.
The phosphorites are typically beige to brown in colour, fine-grained, indurate, massive to finely bedded in nature while the phosphatic-quartzites are grey-brown, fine to medium-grained, finely foliated, and porous in appearance.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
1 valid mineral.
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 DiagramDetailed Mineral List:
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 8 - Phosphates, Arsenates and Vanadates | |||
|---|---|---|---|
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| Unclassified | |||
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | Oxygen | |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | Fluorine | |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| P | Phosphorus | |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ca | Calcium | |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
Other Regions, Features and Areas containing this locality
AfricaContinent
African PlateTectonic Plate
- Volta basinBasin
- West African CratonCraton
- Leo RiseShield
West AfricaUN Subregion
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Bassar phosphate occurrences, Bassar, Bassar Prefecture, Kara Region, Togo