A study by Ma et al. (2019) found that the parent magma of the lithium-bearing pegmatites in the Volta Corridor was a weakly alkaline granitic magma. The magma was enriched in lithium, and it had a high degree of fractionation. This suggests that the pegmatites were formed from a magma that had been allowed to cool and crystallize for a long period of time.
The study also found that the pegmatites were enriched in other elements, such as beryllium, cesium, and rubidium. These elements are also typically enriched in granitic magmas, and they are often found in association with lithium.
The results of this study suggest that the lithium-bearing pegmatites in the Volta Corridor were formed from a well-fractionated, weakly alkaline granitic magma. This magma was enriched in lithium and other elements, and it is likely that these pegmatites represent a significant lithium resource.
