SIR 0.00% $2.52 sirius resources nl

Ann: Polar Bear - Baloo Gold Update, page-15

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  1. 4,791 Posts.
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    I'm sorry but there's some blatant ramping here. Multi-million oz. What a load of rubbish. The strike length of the best grades is only 200 metres. I'm not going to bother to estimate it but, ahhh sheet, wait...... 50m*50m*200m*2.0g/t*2.0(SG)=64,000oz (very rough estimate) so far. I was going to say 50-100Koz so I must have a good feel for this stuff.

    What aircore is really good at, is stopping when it hits something hard, normally fresh rock. The effect of this is that if you're drilling gold mineralisation in the oxide zone where the gold is concentrated by weathering processes, you get to drill to the base of the enriched supergene gold mineralisation and then you stop.

    None of the lower grade primary (fresh rock) mineralisation gets sampled so in effect you're probably sampling the highest grade material. One of the oldest tricks in the book is to extrapolate the high grade supergene mineralisation down into the lower grade fresh rock zone which is blatant misleading and possibly deceptive conduct. These grades over these thicknesses are very unlikely to be found at depth when they drill the fresh rock with RC or Diamond.

    That's not to say there isn't some good grades to be found at depth but they probably won't be at the same grades and thicknesses encountered in the aircore drilling. IMHO of course.
 
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