Tex,

The short answer is we don't know what is going on at the bottom of the hole. I just gave some possibilities of what MAY have happened. Its also possible that the rock in that area isn't mineralized or mineralized at a level that they call 'unmineralized'. Without access to the details that the geologists on site have we are GUESSING. You could poke another hole 10 meters away and possibly be in mineralization so for now we just have to wait and see what comes out of the drilling. 12 holes just isn't enough information to work with yet to give conclusive answers.

... Been There