Could mining really be this easy? Cut the ore from the earth like a steady-handed surgeon, and then mend the wound with the salvaged skin of overburden and gangue. Surely we are not so lucky – we’ve forgotten the tailings – what to do about those pesky tailings? (more…)
Archive for March, 2012
I think the business section of the paper is consistently the most interesting; there is always some article which catches your eye. Today’s point of interest has a mining basis which relates to one of the major Northwest Territories diamond mines, Diavik. In short, Rio Tinto is looking to sell its stake in the mine in order to focus on “expanding into more scalable and profitable commodities such as iron ore, copper and uranium” as their investment in diamond mining amounts to less than 2% of total profits. (more…)
This week I have read and debated about tailings disposal in the desert. That set me in mind of a paper I wrote more than twenty years ago. It is fun to go back and see what was in issue then as compared to now. Here is the link to the paper with the long title Remedial Activities in Arid Areas: The Design of Hazardous Waste Cells in the Desert. Some of what we wrote then is now out-of-date, but a surprising amount is still valid. Because it is Friday, the sun is shining, and my bike beckons, I say no more than invite you to download it and contemplate the passage of time and the developmen of knowledge. A good weekend.
With the Paste 2012 conference on mine tailings just a few weeks away in Sun City, I’ve pinched this title from a question posed at the 2008 conference in the paper Surface disposal of paste and thickened tailings – A brief history and current confronting issues. So thank you to the authors (M. Williams, K. Seddon, and T. Fitton) for putting that insightful paper together. (more…)