REPORT OF ACTIVITIES ON DIAMOND DISCOVERIES INTERNATIONAL PROPERTY DDI 5 IN THE TORNGAT MOUNTAINS. GM 59664, 2002. 17 pages. 

The geology of this property is considerably more diverse than that of DDI-6. The presence of belts of peridotite in lenses as well as a massive rock units leads one to expect that there will be some eclogite indicator minerals associated with them. It is fortunate that the Quebec department of mines has published their geology map of the area this past october. The information contained on it will be valuable in interpreting the distribution of indicator minerals in the drainage systems on the property. The presence of subducted slabs supplies the first part of the environment for diamond formation. The presence of the T2, M and S kimberlitic dykes on the western boundary attests to the fact that there was tension in the crust at a later date that would have tapped the mantle in close proximity to the diamond stability zone. This property will require a separate program of exploration to identify the presence of kimberlite dykes or pipes on it. A detailed sampling of till in a systematic fashion is probably the best way in finding the source of concentrations of kimberlite indicator minerals and the probable location of buried pipes or dykes. Since one of the key signs of the presence of the kimberlite dykes is the grassy cleft in the rocks, exploration at the elevations at this end of the property needs to be done on the ground or by till sampling. The magnetometer used in walking mode is a very good tool in following invisible kimberlitic dykes once they disappear under the extensive boulder fields at these higher elevations. It should be used to follow extensions of the known "T2", "M" and "S" kimberlite dykes. It can also be used to locate narrow steep gradient magnetic features that are magnetic dykes but may be diabase dykes. An experienced operator should be able to find the more resistant diabase as float on the surface. A computer with appropriate software and an operator familiar with the system will be needed to give daily feedback on likely targets for the crew to focus on the next day.