Latest open-pit mining Stories

2008-07-29 09:00:59

COEUR D'ALENE, Idaho, July 29 /PRNewswire-FirstCall/ -- Metalline Mining Company is pleased to announce that a new resource model has been completed on the Sierra Mojada, Coahuila, Mexico Oxide Zinc mineralization. The new model was completed by world-recognized Pincock, Allen, and Holt, and more than doubles the amount of zinc present in the deposit. The current model incorporates new drilling results and a complete suite of silver analyses that were not available when the previous model...

2008-07-28 06:01:05

By Tony Davis, The Arizona Daily Star, Tucson Jul. 28--One of the few studies conducted on mining's effects on wildlife found that a native desert-bighorn sheep population hung on despite the presence of a major copper mine northwest of Tucson. The bighorns in and around the Silver Bell Mine survived. But in general, other studies have shown that "large alterations in the landscape are not likely beneficial to most big game," said Paul Krausman, a lead author of the sheep study....

2008-07-02 12:00:56

TORONTO, ONTARIO--(Marketwire - July 2, 2008) - GBS Gold International Inc. (TSX:GBS) ("GBS Gold" or the "Company") is pleased to announce a significant expansion to the resource estimate for the Chinese "big pit" area within its Union Reefs Operations Centre in Australia's Northern Territory: - The resource estimate for the Chinese "big pit" area now comprises indicated resources of 7.2 million tonnes ("Mt") at an average grade of 1.7 grams per tonne ("g/t") for 387,000 ounces of contained...

2008-06-25 00:02:36

VANCOUVER, June 24 /PRNewswire-FirstCall/ -- (All figures in US dollars except where noted) Northgate Minerals Corporation (TSX: NGX, AMEX: NXG) is pleased to report the completion of a NI 43-101 Preliminary Assessment Report (the "Preliminary Assessment") on the Young-Davidson Project in Matachewan, Ontario. The Preliminary Assessment indicates that the gold resources are sufficient to produce a positive cumulative undiscounted cash flow. AMEC Americas Limited has been commissioned to...

2005-09-23 07:30:00

BUTTE, Montana -- Long before Hurricane Katrina inundated New Orleans with what officials describe as a dangerous toxic soup, Montana's mining capital struggled to deal with a massive watery hazard. Even as bad as the sewage and chemical infested water around New Orleans may be, the Berkeley Pit, a toxic lake filling a 1-1/2 by 1 mile open pit mine in Butte (pop. 34,000) may pose an even greater long-term ecological risk. The site, which includes land near the lake, is the largest...

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This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.