Testing the HS blanketJudging by the depth of the last three holes. I'm guessing there isn't that thick of a steam heated "barren zone". They must have determined from the initial three holes that infact geophysics was correct and the blanket of disseminated AuAg vuggy silica is 100-200 m thick.
Even if they didn't intersect a very thick blanket with the initial campaign or hit it out of the park with the best grades. I imagine just proving there is a blanket there with potentially economical grades would be very significant bcs the big boys will know that the good stuff will be there, just gotta find it. .