Ann: Yule South Mallina Basin Drill Contractor Appointed, page-203

Golden State’s initial +10,000m, 30-40m deep aircore drilling program is looking for the ‘interface’ between the transported sand cover and the bedrock. It’s essentially a geochemical sampling program, Moore says.“The transported sand cover — which has traditionally ‘masked’ potential discoveries like Hemi — has stymied gold explorers in the past,” he says.
Where there isn’t a lot of cover an explorer can usually just take samples from surface.“But because there is a lot of ‘transported’ sand cover you can’t rely on surface samples to give you an accurate indication of what is below,” he says.“The aircore drilling will get down to that interface where we will hopefully find the ‘signature’ of something big lurking beneath in the hard rock.
”Golden State is replicating De Grey’s Hemi discovery model, which involves a more tightly spaced 640m by 80m drill pattern.“We now understand what sort of footprint a discovery may have, so we have aligned our drilling to hopefully hit something with a similar sort of footprint,” Moore says.