Cassini Resources Ltd (ASX:CZI) is about to begin diamond drilling at its Yarawindah Brook Nickel-Copper-PGE Project in WA with a rig mobilised to-site to test several electromagnetic (EM) conductors north of the Ovis and Avena prospects.
Several EM conductors have been identified and are supported by substantial nickel-copper and PGE (platinum group elements) results from historical and recent drilling, as well as latest soil geochemistry results.
The project is prospective for nickel, copper, cobalt and PGE, primarily palladium and platinum.
Four holes to be drilled
A total of four holes for around 800 metres will be drilled, with each hole testing a separate EM or geological – geochemical target within the central Yarawindah project area.
At this stage, a fifth hole is contingent on results from the current EM survey at Brassica NW as well as a review of the XC06 anomaly.
Yarawindah is within an emerging nickel-copper-PGE-gold province around 70-100 kilometres northeast of Perth.
Survey presents new targets
The company has also recently completed a soil geochemistry program comprising 1,041 samples and surface EM surveys over an area of around 3 square kilometres.
Soil geochemistry has identified a coincident nickel-copper-cobalt and palladium-platinum anomaly around 750 metres to the northwest and along strike of Brassica prospect.
The soil anomaly extends over 1-kilometre along strike and has peak values of 122ppm nickel, 644ppm copper, 23ppm cobalt, 61ppb palladium & 86 ppb platinum - 10 times greater than background metal concentrations in the area.
This anomaly is outside of the existing airborne and surface EM coverage and is a priority target.
Utilising SQUID technology
A surface EM survey over the new Brassica NW soil anomaly is underway utilising the latest SQUID technology.
It is expected to take 10 days to complete testing potential new EM conductors, which may represent massive sulphide accumulations.
A late-time conductive anomaly, referred to as XC06, was previously identified by ground EM surveying on the southern edge of the new NW Brassica soil geochemical anomaly, at the limit of previous EM surveying.
This anomaly has not previously been drilled and is plausibly part of a larger system of conductive bodies.
The upcoming program is the first step in a transition to project-scale exploration in a systematic fashion utilising a range of new datasets and exploration methods.
Cassini’s exploration work to date has indicated a greater extent of prospective host rocks than previously thought and highlighted a number of new, high-quality regional targets that need to be followed up.
The first steps in project-scale exploration will include a staged expansion of the airborne EM coverage and soil geochemistry.
Land access approvals are being actively progressed across the project.
Cassini’s views on the strong potential of the region to host significant nickel-copper-platinum group element mineralisation have been validated by Chalice Gold Mines Limited's (ASX:CHN) recent high-grade sulphide discovery at the Julimar project, approximately 40 kilometres south of Yarawindah.
Such prospective mafic and ultramafic intrusive complexes are commonly associated with major regional gravity highs, which represent deeper-level accumulations of mafic material in the crust.
This is also believed to be the case for the New Norcia Province.
Importantly, Cassini’s Yarawindah Project overlies the central part of the gravity anomaly near the intersection of two terrane-bounding structures.