by dcameron | Oct 1, 2025 | Bulk Density, Drill Hole Spacing, Exploration, Geostatistics, Grade Control, Mineral Resources, Production Reconciliation, QA/QC, Resource Classification
Following is a copy of the comments I submitted on the proposed changes to the Instrument, companion policy and Form 43-101F1. It is an opportunity to improve reporting standards which have been essentially unchanged for over a decade. September 18, 2025 To: British...
by dcameron | Aug 15, 2025 | All, Bulk Density, Exploration, Geo Logic, Measurement Systems, Mine Geology, Mineral Resources, QA/QC, Resource Classification, Sampling, Significant Figures
This is going to be a really boring read for any but the most habitual miners in the miniscule audience. Even if most of us economic geologist types will agree that rock bulk density is a neglected subject in all facets of exploration, mineral resource estimation and...
by dcameron | Mar 12, 2025 | Bulk Density, Climate Change, Critical Minerals, Drill Hole Spacing, Geo Logic, Geostatistics, Grade Control, Mine Geology, Mineral Resources, QA/QC, Resource Classification, Significant Figures
Like it or not, we got a taste of the power wielded by overuse of the word “science” in this decade. Heretofore, some of us innocently thought that science was an abstraction, but we subsequently found out that it can be used as a club. While we can...
by dcameron | Nov 20, 2022 | DIE Factor, Drill Hole Spacing, Geostatistics, Mineral Resources, Resource Classification
I’d like to introduce the patient reader and my clients to a conceptually simple tool that is useful for the assessment of resource risk. The Drill Hole Information Effect (DIE), as I propose to call it, is the observation that the deeper...
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...
