Super Pit by Chris Hillman

Chris Hillman | all galleries >> Travel - 2006 >> Kalgoorlie - Australia > Super Pit


05-FEB-2006

Canon EOS 20D
1/500s f/8.0 at 300.0mm iso400 hide exif

other sizes: small medium large auto

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comment |

Guest		19-Aug-2007 03:16
Ausdrill RC drilling. Generally drilling hole depths of 40 - 100m for Grade Control purposes. The Difference between Resource drilling & Grade Control (GC) is primarily to do with coverage. GC drilling is done to a closer/denser pattern (6mX12m) and is the final interrogation of the orebody prior to defining the oreblocks that will then be dug by the shovels.

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