Unusual titanium-rich oxide mineral from peralkaline granite of Kigom complex, Northern Nigeria
| Autor: | Badejoko, Thompson A. |
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| Zdroj: | Journal of African Earth Sciences; January 1988, Vol. 7 Issue: 4 p703-706, 4p |
| Abstrakt: | A titanium-rich oxide mineral found in a riebeckite aegirine granite contains, apart from Ti, Fe, and Mn; Zn, Pb, Nb and Ta are also present in variable proportions. From the recalculated chemical structure, reflectivity micro hardness and mineral paragenesis, the oxide mineral is tentatively suggested to belong to the ferropseudo-brookite group. This is the first reported occurrence of such an oxide mineral in the non-orogenic Younger granites of Nigeria. |
| Databáze: | Supplemental Index |
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