Laserfiche WebLink
• o Status: Complete. Each of the items listed in Appendix 1 of BR373 have <br />been rectified. The action taken on each item is located in Appendix 1 <br />of this memorandum. <br />• CCC should ensure that the sampling protocol matches current mining <br />practice. <br />• Status: Complete. Discussions with mine planning and mine <br />production personnel were held when the sampling protocols were <br />prepared in July 2004. A minimum seam thickness of 1.5 feet was <br />determined to best apply to current planning and production scenarios. <br />The 1.5 feet sampling interval was documented in the field data protocol <br />at that time. <br />• Geological Model: <br />• Visualisation of seam surfaces indicate that a drill hole intersection is not <br />necessarily honoured. <br />• The surface interpolator was changed from FEM to Height which <br />provided better data point honouring. The deviation of grid values from <br />drill hole data is now less than 1 foot. A reduction in grid cell size from <br />• 100 -feet to 50 -feet might yield even less deviation. However, this is not <br />recommended due to a four -fold time increase on any processing <br />performed on the model. <br />• Improve burn line definition using rotary drilling (+ a -log and magnetics ?) <br />• Status: In Progress. Much of the planned 2005 exploration focuses on <br />drilling along the perimeter of Collom. Other "cropline" drilling is also <br />planned for the West Pit, East Taylor Gulch, Lower Wilson and the north <br />end of Little Collom Gulch. <br />o A magnetic survey was performed in 1997 in the South Taylor area. The <br />results of the study tended to be inconclusive and unreliable. The CCC <br />consulting geologists believe that burn occurring in multiple seams at <br />multiple depths severely limit the value of geophysical methods for <br />burn identification. <br />o TS recommends that CCC review use of grid smoothing and trend surface in <br />MineScape. <br />■ If this investigation does not resolve the issue, CCC should contact <br />Mincom for an explanation /resolution of the issue. <br />o Status: Complete. The direct use of a trend surface was removed from <br />the geological model. Surface control in the area of the synclinal axis is <br />• <br />