gir has the best intersections. the south part of that bhp...

gir has the best intersections. the south part of that bhp deposit is the one that contains the 60% fe. I notice the only closest drills to ROY is only 12m thick, and another one only 6m or so thick. So its hard to infer 30mT from roy's section.

1500m by 300m (roy's section) * 3 * 10m = 13mT. I am not too sure about the the strike length exceeding 1500km north ways.

even if they hit 30m in a few holes, average thickness can come to 10m by 1 hit being duster, or one low width intersection. to get 30mT you need 30m average intersection, or higher strike lengths.