placer mining

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Related to placer miner: Placer gold

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 ?
Most who succeeded as placer miners lived high for a while, gambled, and showered others with generosity, but proved poor managers of their money.
Most placer miners design and build their own equipment," Edgerton said.
Unlike hard rock miners who go after gold still intact in the mountain, placer miners go after the remnants.
Many of the new regulations being forced on placer miners are not scientifically based nor in proportion to the potential environmental hazard.
The first author is particularly grateful to placer miners Bernie and Ron Johnson (Dawson City) for bringing to his attention the significant finds at their 1987-1988 operation on Nugget Gulch, and for donating important Pleistocene bones from this and other sites on Eldorado Creek to the Canadian Museum of Nature, as well as for their great hospitality.
It has become apparent while conducting this research that most of the diamond discoveries in the Yukon have occurred by accident, mainly by placer miners serendipitously coming across the gems while examining their cleanup," the authors note.
first started staking what is now known as the MAN Alaska project in 1995, they were looking for sources of platinum, based on stories told by placer miners who had successfully worked in the area.
The transaction and mine start up will allow Barexor to become a major gold producer with a capacity of 65,000 ounces per year, access to state of the art equipment, and access to an experienced proven team of gold placer miners and engineers in the western U.
The improved gold price has allowed some placer miners to begin mining again, but not as many as we had hoped.
Mintec, Takla Star's Bolivian geological consultants, have been attempting to work out an operational agreement whereby the creek-bed placer miners would be allowed to continue their activities concurrent with Takla Star's large scale exploration program.
Mining of these multi-metal deposits is unlike gold production here in Alaska, where several hundred small placer miners and a handful of larger operations make up the industry.