این معدن الماس درکشورکانادا ودرجزیره ای با وسعت 20کیلومترمربع حفرشده است. این
منطقه سردسیر تنها220کیلومتراز مدارقطب شمال فاصله دارد.ازاین معدن سالیانه
1600کیلوگرم الماس پرعیاراستخراج می شود.شما می توانید اطلاعات کامل تررا درمتن
زیربدست آورید:
The
Diavik Diamond Mine is a diamond mine in the North Slave Region of the Northwest Territories, Canada, about
300 kilometres (190 mi) north of Yellowknife.
It has become an important part of the regional economy, employing 700,
grossing C$100 million in sales, and producing
approximately 7.5 million carats
(1,500 kg (3,300 lb)) of diamonds annually.The area was surveyed in 1992 and construction began in 2001, with production
commencing in January 2003. It is connected by an ice road
and Diavik Airport with a 5,235 ft (1,596 m) gravel runway
regularly accommodating Boeing 737 jet aircraft
The
mine is owned by a joint venture between the Dominion Diamond Corporation and Diavik
Diamond Mines Inc., a subsidiary of Rio Tinto Group. The lifespan of the mine is expected to be 16 to 22 years
The
mine consists of three Kimberlite pipes associated with the Lac de Gras kimberlite field and is
located on an island 20 km2 (7.7 sq mi) in Lac de Gras
and is informally called East Island. It is about 220 km (140 mi)
south of the Arctic Circle
In
2006 the ice road from Yellowknife to the Diavik mine, and
neighbouring mines, froze late and thawed early.The Diavik mine was unable to truck in all the supplies needed for the rest of
2006 before the road closed and arrangements had to be made to bring the
remainder of the supplies in by air
On
July 5, 2007 a consortium of seven mining companies, including Rio Tinto,
announced they are sponsoring environmental impact studies to construct a
deep-water port in Bathurst Inlet.Their plans include building a
211 km (131 mi) road connecting the port to their mines. The port
would serve vessels of up to 25,000 tonnes
In
March 2010, underground mining began at the mine. The transition from open pit
to underground mining is expected to be completed by 2012
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دانلودکتابIntroduction to Ore Forming Processes
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