Running discussion on SP, page-1301

"The term homogneous lends itself to 75 metres spacing so 4 across (200 metres), and 16 long (1200 metres length)."

I don't think that is quite the drilling profile though. If you take a look at line 7000 the drill collars are closer at the top than at depth. Some virtually in the same hole. So the cores make out a sector-like planar shape not a rectangular shape. I think this is because they are trying to determine the boundary of the resource at the same time - fair enough - but that gives a smaller volume than if you were drilling perpendicular cores - so a smaller initial JORC too, no?