Castillo Copper Ltd (ASX: CCZ) has increased the priority copper target area at the Big One Deposit in Queensland proximal to the line of lode, historical workings and known orebody with findings from a recent surface sampling campaign
Based on previous drilling campaigns and utilising historical data, the Big One Deposit’s current MRE is 2.1Mt @ 1.1% Cu for 21,886t contained copper metal.
The assayed surface samples, which include rock chips up to 12% Cu, verified a significant anomaly that suggests copper mineralisation extends west along strike from historical workings and the known orebody. Furthermore, the assays suggest the potential for copper mineralisation to extend south and to the east of the line of lode.
Incrementally, the fresh geochemical results validated known induced polarisation conductivity anomalies that are north of the line of lode.
“The systematic surface sampling campaign around the Big One Deposit delivered encouraging results,” Chairman, Ged Hall, said
“Notably, the assays confirmed significant anomalous copper zones west of the known orebody, complemented with indications of incremental mineralisation to the south and east.
“Furthermore, completing a comprehensive mapping exercise has provided the geology team with deeper insights into localised copper-bearing faulting trends. Consequently, there are now more than sufficient data points to develop a comprehensive drilling campaign that has the potential to extend known mineralisation.”
As the field team were at the Big One Deposit for three days, they were able to complete a comprehensive mapping exercise to gain further insights and geological understanding of the copper-bearing faulting trends.
Next Steps
Reconciling the new geochemical data from the surface sampling campaign with legacy information will enable the geology team to select viable targets to test-drill which have the potential to extend known mineralisation.