Nahuta Licences 1, 2 & 3

EcoPhoenix’s Nahuta licences lie in the Upper Benue Trough which contains Cretaceous-Tertiary age marine and continental sediments that are now folded and mineralised. The Benue Trough is recognised as a ‘failed arm’ of a triple junction that formed during the break-up of the Gondwanaland super-continent. The other two successful arms split the South American continent away from the African continent and now form the South Atlantic Ocean. The failed arm opened enough to allow accumulation of marine sediments but then closed again resulting in folding and deposition of continental sediments. During this time lead/zinc mineralisation was deposited from metal-rich circulating brines. This is a classic geological setting for lead/zinc mineralisation.

Analyses of Nahuta grab samples show these maximum metal contents:
• Lead 45% • Zinc 57% • Copper 10% • Silver 54ppm

Analyses of Nahuta grab samples have been carried out in the laboratories of SGS Ghana and OMAC Ireland. They show that there is strong mineral zonation within the veins. Many samples are dominated by lead, others contain little lead but significant amounts of zinc or copper.

Nahuta Exploration Plan
A three-pronged attack is proposed in order to explore the Nahuta area:

• Geology: structural and lithological mapping to locate possible host faults and/or horizons
• Geochemistry: stream sediment and follow-up soil sampling to identify anomalous soil metal content
• Geophysics: helicopter-borne electromagnetic methods designed to locate buried anomalous conductors, operated by Geotech Airborne