mining

(redirected from placer mining)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to placer mining: Hydraulic mining, Open pit mining

mining

(mi'ning) [ME]
1. The extraction of useful information from a database. Synonym: data mining
2. The extraction from the earth of materials with industrial value, such as coal, silver, or gold. Miners are exposed to various occupational disorders, including respiratory diseases (e.g., pneumoconiosis), allergies, and traumatic injuries.

data mining

Mining (1).
References in periodicals archive ?
A more comprehensive account of the placer mining methods employed in BC is provided by Holland (1942a, b).
The Conrey Placer Mining Company is a business history, a history of technology, and a local history.
The new equipment helped small gold mine operations like the Yukon Placer Mining Co.
Even before production began, Fort Knox was working with the Alaska Department of Fish and Game to rehabilitate the wetlands in the Fish Creek valley that had been disturbed by decades of placer mining.
"For the number of operations, placer miners would overwhelmingly be the largest group, but the total placer mining production for 2011 was only 45,000 oz gold...
POM is a mining operation owning a production interest in certain placer mining claims containing gold, silver and other precious metals in addition to rare earth elements located approximately 80 kilometers northeast of Vancouver in the lower Lillooet River Valley.
"It's important to note that the placer mining industry has some incredible economic and employment numbers.
Grassalco retains rights to small-scale placer mining and a net revenue interest, either as a floating net smelter return of up to 6%, based on the gold price, or a 20% net profit interest after Canarc recovers its capital investment with interest.
(TSX Venture: PE) (FRANKFURT: A111EG) (OTC: HMGLF) has secured an additional 963 acres (390 hectares) of lithium placer mining claims in Clayton Valley, Nevada through its Esmeralda Minerals US subsidiary, the company said.
"Phase I is placer mining Sable Creek gem gravels," Ed says.
He was an expert on gold placer mining and he evaluated more than 100 properties around the world that produced millions of dollars in gold.