by dcameron | Feb 3, 2022 | Grade Control, Mine Geology, Mineral Resources
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...
by dcameron | May 16, 2020 | Bulk Density, Grade Control, Mine Geology, Mineral Resources, Production Reconciliation
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...
by dcameron | Apr 9, 2019 | Mineral Resources, Resource Classification
The idea for this blog comes fresh from reading a recently disclosed scam-nabulous 43-101 Technical Report for mineral resources. Watching how the stock ticker started moving up two days before the public release, I asked myself, how is it that such a poorly...
by dcameron | Nov 15, 2018 | Mineral Resources, Resource Classification
It is pretty common to read 43-101 format technical reports on Mineral resources for new deposits that include significant Measured mineral resources. In my opinion, this classification of resources is often not merited. Let’s review the CIM definition: “A Measured...
by dcameron | Oct 15, 2018 | Drill Hole Spacing, Geo Logic, Mineral Resources, Resource Classification
For those vein miners who might read this, let’s discuss a bit about drilling angles. If any of us are asked if we want to drill across structure or down structure, most of us will always choose the former. For those who wouldn’t, please take this...
by dcameron | Aug 14, 2018 | All, Drill Hole Spacing, Mineral Resources, Resource Classification
What is your sample or drill hole spacing? We are supposed to know in order to disclose exploration information and to estimate mineral resources, according to 43-101 and JORC guidelines. JORC code states: “Geological evidence and knowledge required for the...
