yandi bhp is 50-150m thick orebody
20km2 target
*
2.8specific gravity
*30m average thickness(conservative)
=1.7bn tonnes. If it was Yandi 50m thick = 2.8bn tonnes. of course not all the 20km2 would be mineralised, but if 40% is its good enough to build another railway line(like FMG and AQA?)
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