I hate Mineral Resource Estimation!

I hate Mineral Resource Estimation!

Published October 6, 2017 Author: Mike O’Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat. I started a resource update a couple of weeks ago. You may know the feeling… Not looking forward to: Weeks of fiddling about trying to get a geological model to fit the data. All those gaps and messy intersecting triangles inevitably leaving the best grade […]

Are Your Mineral Resource Domain Wireframes ‘Fit for Purpose’ or ‘Just too Bad’?

Are Your Mineral Resource Domain Wireframes ‘Fit for Purpose’ or ‘Just too Bad’?

Published July 28, 2016 Author: Mike O’Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat. Most technical reports nowadays are filled with supporting evidence to technical reports. So much so, that if you listen carefully, you can sometimes hear the armies of swath plots groan as they struggle to maintain their places on the pages in competition with herds of semivariogram plots and […]

Resource model to accommodate narrow vein mining risks

Resource model to accommodate narrow vein mining risks

Published 22 February, 2016 by AMC Consultants on LinkedIn. Comment by Mike O’Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat. This webinar video by AMC Consultants shows a really good summary of narrow vein mining risks. It’s food for thought when contemplating building resource models flexible enough to accommodate the eventual requirement of including dilution and selective mining […]

Beyond the ranges…

Beyond the ranges…

Published February 22, 2016 Author: Mike O’Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat. In this extract from Rudyard Kipling’s The Explorer, a voice cries out to exploration geologists. “Something hidden. Go and find it. Go and look behind the Ranges – Something lost behind the Ranges. Lost and waiting for you. Go!” Many things have changed in the exploration business […]

A Three Letter Word that Sank a Thousand Mineral Projects

A Three Letter Word that Sank a Thousand Mineral Projects

Published February 19, 2016 Author: Mike O’Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat. ‘AND’ is a logic gate that sneaks up on mineral projects and destroys their value. ‘AND’ is a logical conjunction and, to grossly simplify, it implies the outcome of applying a series of factors in combination is only positive if each of the series of factors is […]

Into space: On the Starship Enterprise or the Millennium Falcon?

Into space: On the Starship Enterprise or the Millennium Falcon?

Published February 10, 2016 Author: Mike O’Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat. Despite the difficulties besetting the terrestrial mineral industry, there is a persistent and growing interest in exploiting other bodies in the solar system. A number of companies are developing plans to exploit minerals, water and hydrocarbons associated with asteroids. As we know from this […]

Dimensions and Decisions: Mineral Resource Risk

Dimensions and Decisions: Mineral Resource Risk

Published January 18, 2016 Author: Mike O’Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat. Mineral Resources and Reserves are not easy things to define. Qualified Persons (QP – NI43-101) and Competent Persons (CP – JORC, SAMREC etc.) exist to do difficult things independently and provide a level of comfort to investors, clients and regulatory authorities. During the exploration […]