Confessions of an Economic Geologist: Part II – ESG

It’s time to get the pile of magazines off my desk which serve as a daily reminder of ESG, Dr. Evil’s newest creation. If I can just write this post, wasting as few words as possible, I promise myself and you to return to technical topics. Writing my notes about ESG...

Changing of the Guard – Part 1 – The Anaconda System

The mining industry has lost one of its best mining engineers with the death of James S Knowlson V this last January 2, 2022. Jim was the Chief Engineer at Anaconda’s Butte, Montana operations, starting there as an underground sampler in the late 60’s while he worked...

2020–A Year of Exceptional Innumeracy

 I read an op-ed piece piece today by Malcolm Kendrick (RT News), a UK physician, who recounted an incredible metric-imperial conversion bust. In 1998, NASA’s Mars Climate Orbiter burned up in the Mars atmosphere because of a failure to convert thruster pounds of...

Correct Estimates of Development Tons and Grade

At first glance, reporting of grade and tons from underground face sampling seems like a no-brainer application of simple arithmetic in EXCEL, right?  Yup, no argument there…except, how come it is almost always done incorrectly due to faulty formulas, faulty...