News
Thoughts on geology, the mining industry, and more.
LINUX for Christmas
A lot of people these days have made the move to the Linux operating system or are considering it for its stated advantages of superior performance, stability, security, and privacy. An army of developers contribute to various versions of this open-source system which...
Comments on CSA Notice of Proposed Changes to NI 43-101
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...
Introducing the Mining Engineering Magazine Newspeak Index
It used to be that Mining Engineering magazine was for me a suitable read before the plane took off for some destination in the Empire, a great aid to sleep as the plane climbed to cruising altitude and before the flight attendant could bring you the first...
Practically SG—Bulk Density for Mineral Resource Estimates
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...
Critical Birds– A Sudden Decrease in Numbers and Species in the Western United States
At one time, I identified myself as a field geologist by vocation if not necessarily by aptitude. Many field geologists have a collateral hobby to augment the experience and/or relieve the mind from the constant focus on rocks....
Well-Rounded Estimates
It may seem like a mundane question, but do we report tonnage, grade and metal correctly and consistently in our public disclosures of mineral resources and reserves? I’ll venture that our public disclosures of mineral resources...
Trust the Science – Geo Logic
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...
All on One Page of Engineering and Mining Journal…
As I was skipping rapidly over the mining news and the now-standard genuflections to the “net-zero” energy transition in various sections of the magazine written by people who should know better, I paused on this page (below) for...
The Orotron II, or How My Invention Nearly Ended My Career
With all this talk recently about artifiicial intelligence, we need to be careful with its application. A fairly long time ago I was Chief Geologist for a mining company that had recently purchased an operating gold mine on a...
Drill Hole Information Effect (DIE)
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...
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