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Major General Resources Ltd - News Release
More diamonds from Victoria Island
Major General Resources Ltd MGJ Shares issued 35,650,047 Nov 27 close $0.28 Fri 27 Nov 98 News Release Also Ascot Resources Ltd (AOT) Mr. Glenn Shevchenko and Mr. Ken Carter report
Major General and Ascot Resources have received further results from their Victoria Island property. Samples collected by Monopros and processed at the De Beers laboratories in South Africa have provided additional diamond results, diamond size information, geological data and chemistry of indicator minerals for the Golden Plover, Longspur, Phalarope and Whimbrel kimberlites. Results for the Snowy Owl kimberlite are pending.
New Diamond Counts The additional 10 and 20 kilogram sample splits that were processed at the De Beers Geoscience Centre (Johannesburg) resulted in the recovery of additional diamonds. A 10 kilogram sample from the Longspur kimberlite provided an additional 30 diamonds while a 20 kilogram sample from Golden Plover contributed five new diamonds. This now brings the total counts to 39 diamonds in 90 kilograms of sample material for Longspur and 44 diamonds in 180 kilograms of sample material for Golden Plover. No new diamonds were recovered from the 20 kilogram samples from each of the Phalarope and Whimbrel kimberlites.
Diamond Size Distribution The table below shows diamond sizes for the results received to date from these kimberlites. Note that one diamond is between 1.0 and 2.0 millimetres in size.
TABLE OF DIAMOND SIZES (mm) ----------------------------------------- Kimberlite Golden Longspur Phala- Whimbrel Total * Plover rope ----------------------------------------- +2 0 0 0 0 0
+1 0 1 0 0 0
+.5 2 1 0 0 2
+.3 2 0 0 0 0
+.21 3 3 2 0 8
+.15 8 8 1 0 17
+.105 8 13 1 0 22
+.074 18 12 0 1 31
-.074 3 1 2 - 6
Total number of diamonds
44 39 6 1 90
Total sample weight (kg)
180 90 180 180 630 * Numbers in this column are millimetres
The diamond sizes shown in the table above were determined by sieving through square mesh screens with openings in the sizes shown. From this table, it is clear that four of the stones can be interpreted as macro-diamonds as their minimum dimension is greater than 0.5mm. It is also possible that other microdiamonds larger than 0.3mm but smaller than 0.5mm mesh size may have a long axis greater than 0.5mm. Detailed measurements are pending.
Crater facies and hypabyssal facies kimberlite have been identified by petrological work at the De Beers research facilities. The Golden Plover and Phalarope kimberlite samples contain both crater and hypabyssal kimberlite, while the Longspur and Whimbrel samples contain only hypabyssal kimberlite material.
Xenoliths of country rock fragments in the kimberlites include limestone and shale which are local cover rock sequences. Detailed petrographic relationships cannot be interpreted as samples studied were small percussion drill chips which were recovered from drill holes sampling only 5 to 11m into each kimberlite.
High numbers of garnet and spinel grains are contained in the Golden Plover and Longspur kimberlites, while the Phalarope kimberlite has moderate to abundant garnet and spinel grains. The Whimbrel kimberlite has no garnets and rare spinels. Ilmenite is common only in Golden Plover and rare or absent in the other kimberlites. Clinopyroxene is moderately abundant in Golden Plover, rare in Phalarope and is absent in Longspur and Whimbrel. Microprobe results indicate the presence of G-10 garnets in the Golden Plover, Longspur and Phalarope kimberlites. High interest eclogitic garnets were recovered from Golden Plover and Longspur. Ilmenites from Golden Plover, Longspur and Whimbrel have compositions reflecting reducing conditions favourable for diamond preservation.
Initial magnetic susceptibility measurements on drill chips indicate that the hypabyssal kimberlite is moderately magnetic while the crater facies kimberlite has a very low magnetic susceptibility. This is important as the size of the kimberlite bodies are not necessarily related to the size of the magnetic anomaly.
From a prospecting priority perspective, the De Beers petrologists classify Golden Plover, Longspur and Phalarope as high interest kimberlites. In view of the results obtained to date, Monopros considers that further work is warranted on these kimberlites.
Monopros, in consultation with Major General and Ascot, is preparing a budget and work program for 1999. This program will likely include geophysics, glacial sediment sampling and core drilling.
Detailed results are still awaited for the Snowy Owl kimberlite, which returned an initial count of 75 diamonds from an 80 kilogram sample.
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