In one of the holes drilled inside the boat, approximately 4–5 meters below the surface, The drilling system had already penetrated the overlying material, but at this layer, the operation stopped as we struck a layer so hard that the drill bit broke. Petrified or highly mineralized wood are both a possibility we want to investigate through third party lab testing. ”
In one of the holes drilled inside the boat, approximately 4–5 meters below the surface, The drilling system had already penetrated the overlying material, but at this layer, the operation stopped as we struck a layer so hard that the drill bit broke. Petrified or highly mineralized wood are both a possibility we want to investigate through third party lab testing. ”