i think, put in perspective, the BTE-5 result was promisingBTE-4...

i think, put in perspective, the BTE-5 result was promising

BTE-4 would have been 7km away from BTE-2

BTE-5 would have been taken back towards BTE-2 in a southerly direction but one would assume east of BTE-3

I assume BTE-3 would have been further west than BTE-2, as in the diagram below

i think we must keep in mind the explorers are professionals and that they just missed the estimated synclinal structure with BTE-4 and hit "something" (not yet related) with BTE-5 shows they have some idea of that they are doing

each 1km square at 30m thick is 50m tonnes so it is promising, speculatively