Ann: New Discovery of Nickel-Copper Sulphides, page-85

A few good takeaways from the Argonaut report, this in particularly

If the system is this long, it must be deeper than currently defined: With Radar, the mineralised strike along the Cathedrals Belt now extends for ~5.5km. However, the maximum depth of discovery is just ~200m below surface (hole MAD108 at the Investigators prospect), limited only by drilling. Probabilistically, a system of this scale is unlikely to stop at such a shallow depth. As surface EM only has an effective penetration depth of ~350m at this project, deeper discoveries will rely on drilling and downhole EM.