Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : MARUM RESOURCES ON ALBERTA -- Ignore unavailable to you. Want to Upgrade?

To: Leigh McBain who wrote (934)	10/18/1998 4:28:00 PM
From: Jesse	Read Replies (2) \| Respond to of 2514

From the EGS talk, continued... Now, here's Mr. Tom Bryant's excellent report from the meeting: [posted with his permission] ================================= Jesse, You and I have not met but in the infrequent visits I make to the SI I have noticed that you are one of the better informed contributors. There was some SI discussion about getting info from the talk but I am not sure if you were able to get feedback. Since I was at the talk - for what it's worth here are my impressions. 1. The Clear Hills Oolitic iron deposit hosts many examples of kimberlite indicator minerals. Most of these minerals are found as cores of the oolite which is made up of a solid core or "seed" surrounded by layers of iron rich silicate minerals. 2. The clays associated with the deposit show chemistries that look like breakdown minerals from kimberlite. 3. The source grains came into a relatively shallow sea as the land mass grew out into the ocean. As such it is most likely they were sourced to the west and northwest of the deposit. Despite the similarity in age between the Iron Deposit (85.5 million years) and the kimberlite emplacement in the Buffalo Head it is unlikely that the grains were sourced from the Buffalo Head Kimberlites. 4. The pristine nature of the mineral grains indicate a proximal source. Some of these grains are sharp sided feldspars which are not known to travel far without significant weathering. 5. Dr. Collums interest is in fossils and much of the talk focused on fossil discoveries south of the Clear Hills closer to the Monopros Mountain Lake Kimberlite. Dr. Collum believes that these fossils represent animal populations close to an undersea seep area - mineral soup coming out of the sea floor created by water moving along faults and fractures picking up minerals and then being discharged on the sea floor. He rightly points out that these fossils not only indicate environment, temperature and sea floor conditions but that they serve to point the way to areas of geological interest. 6. A telling point to Dr. Collum is the absence of fossils in the Clear Hills deposit versus the deposit to the south. This may be the result of a more hostile environment near the more northerly deposit ie. nearby volcanic activity. 7. The common occurrence of fossil wood interests Dr. Collum as a possible indicator of a catastrophic forest kill by the overpressure wave from a land eruption or from a tsunami if from a sub sea explosion. We have talked at length about ways to test that theory. Mount St. Helens has given us a modern analog to use. 8. As an idea for consideration Dr. Collum discussed the possibility of a meteorite impact contributing to a kimberlite event. This theory has been discussed by some of us for some time but not much said to academia. It is difficult to imagine what other force would cause the type of eruption that creates a kimberlite so the meteorite theory deserves a look. We now know of one possible impact crater in the vicinity of the MMU, MIX, CaribGold play. Others may be waiting to be found under the till cover. Seismic will be a valuable tool here I think. Dr. Collum and I had a good get together after the meeting. He and I have been trading data for awhile and we both feel that the exotic chemistry of the Clear Hills Iron Ore Deposit (Badheart Formation) indicates a major geological event nearby. With crossed fingers that event appears to be kimberlite emplacement. Since diamonds have already been recovered from samples of the Iron Ore Formation the confidence level is justified. As always much more work to do. Hope this helps; Tom Bryant ================================= Wow, thank you so much, Tom Bryant, diamond legend of Alberta, for that eloquent synopsis. Very much appreciated, sir! Sincerely, -j :>