PhosCo acquires mining research permit in Tunisia
PhosCo Ltd (ASX: PHO) has announced it has acquired the Ras Ghzir Lead-Zinc research permit. The Ras Ghzir prospect, conceptualized by PhosCo and identified by the Tunisian geology team, holds substantial promise for lead-zinc exploration.
This permit, pursued since July 2022, covering base metals, falls within the scope of the Sekarna phosphate application. Moreover, PhosCo has received notification of the pending review of its application for the Sekarna Phosphate research permit by the Consultative Committee for Mine (CCM). This strategic maneuver underscores PhosCo’s dedication to broadening its portfolio and maximizing exploration opportunities.
The historical significance of the Ras Ghzir region traces back to the early 1900s when zinc mineralization was initially discovered at Sekarna. Mining operations commenced in 1922 and lasted until 1948, yielding substantial quantities of zinc mineralization, including sphalerite and calamine, highlighting the region’s rich mineral potential.
Mineralization
The structural geology of the area, characterized by north-northwest-oriented faults, has been instrumental in the formation of Mississippi Valley Type (MVT) zinc-lead-barite mineralization. These fault systems, combined with karst/breccia collapse infill and disseminations, contribute to the geological complexity of the region.
PhosCo is well-positioned to utilize historical exploration data from 2007 and 2008 to guide future exploration efforts aimed at delineating the extent of base metal mineralization. Additionally, the company plans to conduct comprehensive mapping and geochemical sampling activities to gain deeper insights into the lead-zinc overprint at the Ras Ghzir Project.
Zinc production at Sekarna primarily originated from two main mines, Saint Pierre and Saint Eugene, each demonstrating distinct mineralization characteristics. While Saint Pierre showcased predominantly sphalerite mineralization hosted by phosphorite, Saint Eugene featured non-sulphide zinc deposits within dolomitic limestone caprock.
PhosCo will concentrate on conducting sighter metallurgical tests to evaluate the feasibility of producing separate commercial base metal and phosphate concentrates from the Ras Ghzir Pb-Zn and P mineralization. This pivotal step marks progress towards unlocking the region’s full economic potential.
