Cobre Ltd (ASX:CBE) has leveraged the data from a recent airborne gravity gradient (AGG) survey over tenements in the Kalahari Copper Belt of Botswana to model several new copper-silver targets on its projects, as well as upgrading the geological model for the region.
The collaborative survey, undertaken with Sandfire Resources Ltd, covered priority project areas including the Kitlanya West (KITW), Kitlanya East (KITE) and Ngami Copper Projects (NCP).
Results will support the company’s next stage of drill targeting and feed into work undertaken as part of the BHP (ASX:BHP) Xplor program.
Read: Cobre selected to take part in BHP’s Xplor Program with US$500,000 in exploration funding
Enormously useful targeting tool
“The AGG results are proving enormously useful as a targeting tool and we expect the data to form an integral part of our next phase of exploration,” Cobre CEO Adam Wooldridge said.
“We’re particularly encouraged by the potential of the method for highlighting preserved fold hinge trap-sites which we believe to hold the key for Tier-1 deposits in the KCB.”
The survey offered several insights into Cobre’s land package, including identifying several key features associated with sedimentary copper deposits:
- Potential sub-basins in each of Cobre’s project areas;
- Major bounding structures providing pathways for copper-bearing fluids; and
- Large-scale folding where the hinge zone trap-sites are preserved.
The company was also encouraged by indications of discontinuity and/or contrast in the footwall rocks which may control the position of high-grade copper-silver zones and offer fertile targets for exploration.
Cobre is currently focused on advancing and testing the ‘fold’ targets, which the company believes offers the best location for the formation of Tier-1 deposits.