Bisha Mine | Deposit Configuration
The Bisha deposit is configured in three distinct layered zones - a 35m thick surface oxide zone having a high gold and silver content immediately overlying a 30m thick copper enriched supergene zone which itself overlies a primary sulphide zone containing both zinc and copper, which is open to depth.
3D model - Bisha
Interactive cross sections - Bisha
A full description of the Bisha mineral resource and metallurgy may be found in the Company's Technical Report.
For more detail and a review of Bisha geology, see The Bisha Volcanic-Associated Massive Sulfide Deposit, Western Nakfa Terrane, Eritrea.
|Oxide Zone (0-35m)||Gold enriched oxide cap. Overlying.|
|Supergene (35-65m)||Copper enriched massive sulphides containing gold and silver.|
|Primary (65- >450m)||Massive sulphides containing significant copper and high grade zinc zones with appreciable gold and silver.|