Amigo Resources (LSE:AMGO), an AIM-listed critical minerals explorer, has reported an exploration update from its Musensi Hill Rare Earth and Critical Minerals Project in Tanzania's Songwe Region, confirming a multiphase carbonatite system across the licence area.
Systematic geological mapping has identified seven distinct carbonatite lithologies, including calcitic carbonatite, carbonatite tuff, agglomeratic carbonatite and carbonatite breccia, emplaced into a Precambrian granite gneiss basement.
Mafic and carbonate dykes have been confirmed as cross-cutting the basement's gneissic foliation, indicating multiple intrusive events in the system's development.
Bedrock samples have been collected from all principal lithologies and contact zones and submitted for multi-element geochemical analysis; no laboratory results have been received yet.
Carbonatite complexes are recognised hosts for rare earth elements, niobium, phosphate and other critical minerals, though the company cautioned no conclusions on grade or economic significance can be drawn until analytical results are received and interpreted.
"Laboratory analyses are currently underway and will be integrated with the geological mapping to guide the next phase of work, including drill target generation," said Executive Chairman Craig Ransley.
Next steps include petrographic studies, structural mapping, integration with planned geophysical datasets and the generation of drill targets.
