All the reports are written by geologists and it will probably...

All the reports are written by geologists and it will probably make sense to another geologist.
They assume everyone should know what they are talking about.
I am not a geologist and it was through asking questions from a layman point of view that I learned about those details.
Different people have different communication skill and we just have to continue to ask questions when we have the opportunity.
No point getting angry with them but respect them for the effort they are putting in to make these projects work.
I refuse to entertain the thoughts that they are trying to be deceitful.
The impression I received was the depths are in the 400+ m and fluctuate because of the undulating ground.
Give Dudley the credit for taking the time to come down to Melb. and faced the shareholders after the heavy price fall.