GRSG 36th Conference 2025 Abstract

Title:

Li in Africa – Hyperspectral study

Author:

Sachinthani Weeranayake

Organisation:

Faculty of Geo-Information Science and Earth Observations (ITC)

Abstract Text: 

The Manono-Kitotolo pegmatites comprise a north-east oriented LCT (Lithium-Caesium-Tantalum) pegmatite system, which is part of the Mesoproterozoic Kibara belt in the Eastern part of the Democratic Republic of Congo(DRC). The Kibaran metasediments were intruded by different generations of granitic intrusions, including early S-type granites and later leucogranites. The latter are associated with widespread mineralization of cassiterite (SnO₂), colum-bite-tantalite (Mn,Fe)(Ta,Nb)2O6, spodumene, amblygonite, beryl, wolframite ((Fe,Mn)WO₄) and scheelite.

Pegmatites in eastern DRC have been reported as the world’s largest mineralised granitic pegmatite system, which hosts vast reserves of lithium, opening the doors for potential lithium mining in the future. A hyperspectral study is being carried out to understand the spectral features of Li bearing minerals and their weathering products in these pegmatitic systems.