Search results
Results from the WOW.Com Content Network
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, [1] is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin.
The Back Forty Mine is a proposed open-pit metallic sulfide mine targeting gold and zinc deposits in Menominee County in the South Central part of Michigan's Upper Peninsula next to the Menominee River. Aquila Resources submitted its first permit applications to the state of Michigan in 2015. [1]
In July 2009 International Barytex Resources said it had received payment in full for the sale of its interests to Touch Lucky Investments. [ 5 ] The Shanghai-based Pengxin Mining Holdings ( Chinese : 鹏欣资源 ) says they started construction at the mine in September 2010, and placed the mine back into production in March 2012. [ 6 ]
This was hand-excavated to 201 m (660 ft) by 1911, and the hand-dug pit was sightly larger than the Big Hole. The Palabora Open Pit – mechanically excavated by Palabora Mining Company, in Phalaborwa, Limpopo Province. The pit is 898m deep and 1846m across on top. [5] Voorspoed diamond mine
In July 2009, St Barbara suspended open pit mining at Marvel Loch and decided that the treatment plant would be operated on a week-on, week-off basis. [16] After placing the mine in care and maintenance in late 2012, St Barbara sold the mine for A$22.5 million in cash to Chinese company Hanking Gold Mining in January 2013. [17]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Allkem Limited, known as Orocobre Limited until 30 November 2021, [1] is an Australian mining company that is a wholly-owned subsidiary of Arcadium Lithium.Allkem's portfolio includes lithium brine operations in Argentina, a hard-rock lithium operation in Australia and a lithium hydroxide conversion facility in Japan.
Upgrade to a faster, more secure version of a supported browser. It's free and it only takes a few moments: