An IP target could represent be a zone of narrow stockwork...

An IP target could represent be a zone of narrow stockwork sulphide lenses, or a more massive coherent zone. You don't know until you drill. As Cobar Style are more pipe like in nature there could be a number of zones - well that's is if it is Cobar Style. At the moment it hasn't been confirmed that it is Cobar Style.

Usually any pyrite (sulphides) in sedimentary rocks will produce a chargeability target - most of these types aren't mineralised (they don't contain economic qualities and quantities of metal). These IP targets are conceptual in nature and should not create the expectation that there could be anything of significance. Are are merely targets and sometimes depend a lot on how the data was processed, the amount of sulphides present and in this case how lucky/ or unlucky the drilling will be to test them.

The target was always to test these zones at depth. Near the surface the rocks are oxidised and usually wouldn't show up as the sulphides have been oxidised. One point I am making here is that the mineralisation in the deeper drilled zones did not reveal any anomaly - it did much deeper down however.