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The Nahanni Range Road was completed in the early 1960s from Watson Lake, Yukon along the present alignment of the Robert Campbell Highway to Miner Junction (aka Cantung Junction), thence along the Highway 10 route, across the border into the Northwest Territories to the privately owned mining town, Tungsten (for the tungsten mined there), and the Cantung Mine (for Canada Tungsten Mining ...
Naturally occurring tungsten (74 W) consists of five isotopes.Four are considered stable (182 W, 183 W, 184 W, and 186 W) and one is slightly radioactive, 180 W, with an extremely long half-life of 1.8 ± 0.2 exayears (10 18 years).
Cantung Mine operated from 1962 to 1986, again from 2002 to 2003, and from 2005. Production was suspended from October 2009 to October 2010. The mine owner, North American Tungsten Corporation, went bankrupt in 2015 and the mine closed in October of that year. The federal government of Canada now owns the mine and has to clean up the site. [2]
A mining company looking to extract one of the world's largest deposits of the mineral tungsten has said it is confident it is on target to produce the metal by the end of next year. Tungsten West ...
Naturally occurring tungsten consists of four stable isotopes (182 W, 183 W, 184 W, and 186 W) and one very long-lived radioisotope, 180 W. Theoretically, all five can decay into isotopes of element 72 by alpha emission, but only 180 W has been observed to do so, with a half-life of (1.8 ± 0.2) × 10 18 years; [36] [37] on average, this yields ...
Mining Concession C-18 Panasqueira. Minas da Panasqueira or Mina da Panasqueira (English: 'Panasqueira mine') is the generic name for a set of mining operations between Cabeço do Pião (Fundão municipality) and the village of Panasqueira (Covilhã municipality), which has operated in a technically integrated and continuous manner practically since the discovery of ore there.
The mine would be among the world's largest tungsten mines, with reserves equating to 227 kilotonnes of elemental tungsten (W). [1] The claim owner, Sisson Mines Ltd., proposes to mine 30,000 tonnes per day of ore which contains on average 0.06 per cent tungsten trioxide (WO 3) and smaller amounts of molybdenum.
A specimen of stibnite. The Stibnite Mining District sits atop the Idaho Batholith, one of the signature features of Idaho’s unique geology.The Idaho Batholith is nearly 14,000 square miles (36,000 km 2) of granite, formed from the collision of the oceanic plate and the North American Plate around 100 million years ago during the Cretaceous period. [10]