Ann: New Large-scale Porphyry Targets at MaCauley Creek QLD, page-41

It should also be noted that most rocks are silicates, it’s the oxides, sulphides and carbonates which are of most focus. It’s the settings where these are congregated in Economic quantities that is the focus. The geophysics response and geochemistry response can be identical for economic and non economic deposits. Hence companies need to have a few projects that they can target which may result in a major discovery. Not only discovering a deposit but that it’s reasonably easy to process using existing metallurgical processes.

it’s a complex process and one that needs testing and validations as the capital being used can be in the billions.