Production planned for Grand Teton
The first gold and silver dore bar was recently poured at the Adelaide Crown open pit gold mine in Humboldt Cty., Nev. The mine is operated by Gold King Consolidated (NASDAQ), which leased the propert…
News
FUTURES PRICES (July 09, 1990)
N.Y. Commodity Exchange Week’s High Low Close Change COPPER (HG) (in US cents per lb.) July 115.90 114.20 114.40 + 6.05 Aug 114.90 114.05 114.10 + 6.50 Sept 114.80 112.90 113.10 + 6.25 SILVER (in US c…
The Advantages of O_2
Adding pure oxygen to a conventional cyanide leach circuit has several advantages. It reduces the consumption of cyanide, lime and lead nitrate; it reduces the requirement for compressed air; and it i…
Making Allowances
In almost every joint venture or other property acquisition agreement wheremoney is spent on exploration, development or other mining work, the operator is allowed to charge an allowance for overhead …
Motors Matter; ‘High-efficiency’ electric motors are not your run-
As custodians of a wealth of natural resources, Canadians are accustomed to plentiful, cheap electricity. We seldom worry about wasting it. But like communism in Eastern Europe, that attiutude is outd…
ANFO Still Reigns
The 1980s saw a consolidation of the explosives industry. Through mergers and acquisitions, three large manufacturers (ICI Explosives, ETI Inc. and Ireco) now dominate the Canadian underground mining …
The Northern Miner, July, 1940
CHINS UP “We shall never surrender,” declared British Prime Minister Winston Churchill. And never in all history has a more stirring battle cry gone out from the leader of a free people bent on the de…
Geophysics made easy
IP Time Domain Equipment A new line of induced polarization (ip) time domain equipment is available from Androtex Ltd. of Mississauga, Ont. The instrumentation is easy to operate and employs the lates…
Development ABCs
Through a period in the late 1980s when too many new domestic gold projects failed because the operators did not adhere to even elementary principles in proving up reserves and developing mines, opera…
C.I.M. IN U.S.A.
Environmental concerns that U.S. mining companies are grappling with today will probably be facing Canadian miners in the future. That prospect prompted the Canadian Institute of Mining and Metallurgy…
The Mill
Kevin Weston is a mining engineer. He was hired by Inco during development of the Casa Berardi East mine and by all accounts he was a talented engineer. So why is he now the mill superintendent? As We…
ORE-IFEROUS ABITIBI; Northwestern Quebec is home to 10 operating
You don’t have to look far to find today’s mining frontier. It lies just north of the well-developed string of gold mines stretching from Val d’Or in the east to the Ontario border in the west, and k…