Castillo Copper Limited, a base metal explorer primarily focused on copper across Australia and Zambia, has announced that four drill-holes for a total of 488 m have been completed at the Tors Tank prospect within the BHA project’s east zone. The geology team believe there is potential for cobalt and REE mineralisation.
Highlights
- Four drill-holes for 488 m were completed at the Tors Tank prospect, within the BHA project’s east zone, which delivered encouraging initial observations:
- All four drill-holes hit targeted cobalt mineralisation zones, evidenced by intersecting sequences comprising clay, amphibolite, schist, and gneiss.
- Qualitative logging identified multiple disseminated sulfide layers (mostly pyrite), up to 12 m thick, associated with amphibolite layers that can potentially host cobalt mineralisation.
- Field XRF observations, which are subject to final assay results, indicated the presence of cobalt mineralisation within these amphibolite zones.
- The intersected geology is interpreted to be consistent with observations by previous explorers, including Broken Hill North, across the 1970-80s.
- Proximal to the amphibolite layers, there are significant magnetite-rich zones – associated with pegmatite up to 14 m thick – that potentially hosts rare earth elements (REEs):
- This interpretation is based on recently re-assayed diamond core from drill-hole DD90_IB3 at the Iron Blow prospect which returned up to 1270 ppm TREO.
Dr Dennis Jensen, Managing Director of Castillo Copper, commented:
“The drilling campaign has got off to an excellent start, with initial interpretations from the geology team confirming that targeted cobalt zones have been intersected. Moreover, whilst subject to final assay results, the board is delighted to learn that significant pegmatite zones have been intersected which could potentially host rare earth elements.”