To: Jesse who wrote (618 ) 5/28/1998 4:49:00 PM From: Leigh McBain Respond to of 822
With regards to the recent comparisons between the potential of the Marum/Carib/Micrex properties and the Ashton property. There has been a great deal of discussion about proximity, why there may or may not be pipes here/there and everywhere, the rationale behind the potential targeting of "mounds", etc. I hope this might help to illuminate the situation a bit. The proximity that matters here is geologic proximity, NOT geographic. There are some important similarities between the Ashton property and the Carib/Marum/Micrex properties. It has been suggested, in the Canadian Geological Survey, that the Buffalo Head and Chinchaga are actually part of the same geological structure. The indicator minerals, the magnetic signatures, etc. are very similar. The concept behind this is that they simply appear to be the opposing highlands in a glacial flow over a single structure and many of the immediately adjacent properties, currently being worked, are actually in the lowlands between. The properties in the lowlands would have been likely to have had a great deal of the tops of any pipes sheared off during the glacial flow. Ashton does not have some magic formula for drilling kimberlite, they simply have the better property for it and are also at a more advanced stage of exploration. The first batch of pipes was pretty much handed to them on a silver platter. They have been doing a good job of managing the project etc. and I am not trying take anything away from them, but it is not like everyone in the ADP is sitting on exactly the same thing and Ashton is the only who's figured out how to identify it. Ashton and subsequently Marum/Carib/Micrex are going about doing things the right way: additional tight spaced aeromags, geochem testing prior to drilling, focusing on low overburden targets, etc. By the way, part of the issue of the overburden is the logistics and the cost of getting thru it, but part of the issue is also that the thicker the overburden, the more difficult it is to identify what is causing the magnetic anomaly, so you are likely to have more miscues if you just start drilling. I have also verified that kimberlite pipes in this geological setting would quite possibly show as "mounds", as a result of their being more stable than the sedimentary rock surrounding them. This does not guarantee kimberlite, it does however help in the identification of primary targets and is further helped by the magnetic signatures that have been identified, which are unclouded by a thick overburden. Marum/Micrex will be doing geochem soil analysis as well as sampling of the surrounding sandstone structures for indicator minerals etc. The program being undertaken will being directed at sandstone and soil structures which are in line with the known glacial flow and runoff deposits. The information gathered here will help to identify what the geological signature of the terraine that has been sheared away over the years, was. I hope this helps. Salut, Leigh McBain