BLASTHOLE DRILLS
Efficient blasthole drilling can lower the cost of blasting overburden and ore in open pit mines. Low drilling costs mean larger pits and higher strip ratios can be justified. At least eight drill rig…
Articles by Northern Miner Staff
THE GOLDEN GIANT MILL; Part 2 — Grinding Circuit Pre-treatment
The following is the conslusion of an article featured in the December, 1989, issue of The Northern Miner Magazine. It ended with a discussion of the “Hemlo treatmen process.” In the original grinding…
Editorial Mining under attack in South Dakota
A proposed moratorium on new mine development in South Dakota is not the first political blow to be felt by the mining industry in the U.S., but it could prove to be one of the most telling. Many in t…
Evaluating dynamics of crown pillars
Mining is the pillar of the economy for many small communities in Canada. But as some towns have recently discovered, the surface crown pillars of abandoned mines may not be structurally sound. In fac…
Editorial International perspective
It’s an indication of just how international this business has become that a geologist, born and trained in Chile, who has worked most of his professional career in the U.S., is appointed to the top e…
Teeshin drilling
Drilling has extended the Boulder zone on the Dome Mountain property owned by Teeshin Resources (VSE). Near Smithers, B.C., the Boulder deposit hosts reserves of 300,000 tons grading 0.35 oz. gold per…
Nerco, Alta Gold open new mine
Officials of Alta Gold (NASDAQ) and Nerco (NYSE) held a dedication ceremony in early January to mark the opening of the 4,000-ton-per-day Elder Creek gold mine near Battle Mountain, Nev. The new mine,…
Sparton, Freewest
Sparton Resources (TSE) and Freewest Resources (ME) are starting a drill program on their jointly optioned claims near Helena Lake, 35 miles north of Fort Frances, Ont. The drill program will test a g…
GEXA, U.S. Precious Metals have Mother Lode up to speed
The first two bullion pours have been completed at the recently commissioned Mother Lode heap leach gold mine near Beatty, Nev. Opened two months ago, the open pit mine is held by a joint venture of U…
Murray Brook milestone
Four months after opening, precious metal production has surpassed one ton at NovaGold Resources’ (TSE) Murray Brook gold mine, 50 miles west of Bathurst, N.B. Since the mill startup last September, t…
COATS (over-the-counter) Carolin active
As the price of gold continues to bounce around, so do the prices of several junior gold explorers. Posting a gain of 7 cents for the week ended Jan. 23 was Carolin Mines. That company is exploring t…
FINANCING (January 29, 1990)
Multiplex Res. — min 675,000 offered @ 35 cents per sh. Rock Creek Res. — gross proceeds rec $350,000. Waterford Res. — 600,000 offered @ 40 cents per sh. Sunport Metals — opt exerc on 150,000 @ …