RE:RE:RE:RE:RE:RE:RE:RE:So what now?Gaberlunzie wrote: Sorry to learn Bob Cathro had died. He will be missed. He was very sound.
Like you I had never thought there might be a Manitoba Security Commission.Maybe someone should shake their cage.
The Ginn-Michaud report uses a programme called Amine (R) which I am unable to find on the internet and am not familiar with it either. All these programmes are much the same. In the SGR case, they cut all assays over 3 ounces gold per ton. There is no justification for this, or any other cutting (or 'capping') and is statisically unsound. The assays are distorted again by manipulation before being processed. This is likely a programming problem but if the results are distorted, what is the point? This is not the place to get into all this theory.
A problem in mining is at what gold content is it no longer profitable to mine?. Dale and Michaud estimate this grade using the operating cost per ton for mining. This is wrong. The cut off grade is the grade at which the rate of return on investment starts to decline. Under the Ginn'Michaud model, if the whole deposit were at cut-off grade, they would still mine - which in practice would not happen (but from the results might be going on at SGR!).
I may not be fingering the right problems, but there is something amiss here when results are disappointing.
There has been much discussion of this on the BGM thread since that June 28, 2012, Peter-George authored, now-retracted 10-million-inferred- and 100-million-indicated-ounces report hit the newswires.
From what I gather, Amine was used in the BGM report.
Here is a link to a discussion which states ( https://ithinkmining.com/2012/08/22/barkerville-gold-ni-43-101-failure/ )
Barkerville Gold NI 43-101 Failure
August 22, 2012 by Jack Caldwell
The original new release of June 12 (s/b June 28, 2012) is innocent enough:
The Qualified Person used Amine software for 3D digital modeling in AutoCAD. Amine is fully integrated mining software (drill hole planning, drill hole logging, resource and reserve estimates, stope planning, lateral and vertical development planning, etc) developed by Noranda Limited and now marketed independently by a third-party, Flairbase, of Montreal, Quebec
I'm not qualified to join the discussion, but many have rubbished how the BGM report was compiled. A read could show similarities between your post above and the comment on the link I provided.