placer mining


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Related to placer mining: Hydraulic mining, Open pit mining

placer mining:

see miningmining,
extraction of solid mineral resources from the earth. These resources include ores, which contain commercially valuable amounts of metals, such as iron and aluminum; precious stones, such as diamonds; building stones, such as granite; and solid fuels, such as coal and
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placer mining

[′plās·ər ‚mīn·iŋ]
(mining engineering)
The extraction and concentration of heavy metals from placers.
Mining of gold by washing the sand, gravel, or talus.
References in periodicals archive ?
Target: Placer mining claims comprising the Sal Rica lithium brine project
Significant placer mining took place on about a hundred streams, fifteen of which produced in excess of 5000 ounces of gold (Table 1, Fig.
Other types of placer mining, in which large quantities of sediments are sluiced and screened for gold, also cause tremendous damage.
Clark Spence in The Conrey Placer Mining Company sets out to explore one such Montana dredging company and in his narrative both demonstrates something of the process of technological innovation in the early mining industry and presents a case study of one kind of successful business development.
Target: 4,600 acres of placer mining claims in Nina lithium project
These interests cover a 50 percent Interest in Cariboo Gold Quartz Property, placer mining rights on Mosquito Creek, and a 3 percent Net Smelter Return royalty on Cariboo Gold Quartz Mine Property, Island Mountain Mine Property and Mosquito Creek Mine Property.
For nearly a century, sporadic placer mining and dredge operations took out a fortune in gold from the two valleys.
The project's 65 placer mining claims cover 2,450 acres and includes the centre of an identified gravity low to the east of Nevada's Lithium-producing, Clayton Valley.