Caspin Resources Ltd (ASX:CPN) has achieved project-wide airborne electromagnetic (AEM) survey coverage at its Yarawindah Brook Project in Western Australia, providing critical, first-pass data for the exploration of sulphide-rich, nickel-copper-PGE deposits.
The company has completed the third and final AEM survey, which has identified a number of new high-quality conductors that potentially represent bedrock sulphide sources.
These conductors have been ranked based on their geophysical characteristics to enable the company to plan systematic follow-up exploration programs.
A large portion of the northern project area is covered by highly conductive drainage channels, which could be masking the bedrock response. Alternative exploration techniques may be required in these areas.
Brassica trend continues to deliver
The recent AEM survey identified multiple new conductors, most of which sit within a cluster on the Brassica trend.
Two high-priority targets, XC-45 and XC-46, are strong late-time anomalies with continuity across multiple survey lines.
The anomalies appear to be in a different stratigraphic position to the previously drilled XC-05 and XC-06 conductors, which intersected anomalous levels of nickel and copper sulphide in mafic rocks.
The XC-45 and XC-46 conductors lie on or adjacent to the intersection of the Brassica Shear Zone and the Avena Fault, another large-scale fault zone that bounds the Yarabrook Hill intrusion, around 3 kilometres to the southeast.
Caspin has long recognised the Brassica trend as a prospective belt of mafic and ultramafic rocks striking over 17 kilometres within the project area.
Mineralisation potential has been demonstrated by previous drilling of anomalous nickel-copper sulphide mineralisation, providing strong evidence of orthomagmatic mineralisation in the area.
Next steps
The XC-46 conductor is currently accessible and will be drilled in the current drill campaign.
This will be in conjunction with drilling a nearby magnetic anomaly with associated anomalous nickel and copper rock chip results of up to 2,934ppm nickel, 727ppm copper, 14ppb platinum and 27ppb palladium.
Other lower-ranked conductors will be evaluated with ground geophysics and/or soil geochemistry as land access becomes available.
The XC-22 Prospect remains the current exploration focus with drilling progressing steadily, but the company is also committed to systematically exploring the entire Yarawindah Brook Project.
Caspin is building a pipeline of early to advanced stage prospects to provide multiple opportunities for discovery.
The Northwest soil geochemical anomaly, Brassica Prospect and now XC-46 conductor are examples of early-stage opportunities that can be progressed now with small exploration programs, while conditions are favourable.
Drilling is ongoing at XC-22 and the Northwest geochemical anomaly, with one rig likely to shift to the Brassica Prospect and XC-46 in the coming weeks.