RE: RE: Bulk Sample UndergroundYou are missing the point, the conglomerate rock most likely have a very poor rock mass rating which will cause delays in the drivage of the decline and hence delay of the bulk sample. If you look at the core samples, an RQD can be determined which will assist in determing the stand up time of the rock mass and the type of support required. All of what I am saying is that such conditions will add more cost to the drivage and overall delayed the start up time to get to the ore zone. You are working in weak ground. This type of drivage is going to be an engineering challenge to the contractor. Do your DD.