alluvial mining

British  

noun

1. a method of extracting minerals by dredging alluvial deposits

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Example Sentences

Residents of La Toma have long practiced both alluvial mining — panning in the Ovejas for gold washed down from the hills — and digging for ore in tunnels cut deep into dirt and rock.

From Los Angeles Times • Sep. 25, 2022

The contrast between the modern new plant, based in the town of Koidu, and traditional hand-dug alluvial mining could not be more stark.

From BBC • May 21, 2012

The great stay of law and order was the individual digger, and this element of stability has always been missing at the goldfields, except in the few instances where alluvial mining has been pursued.

From Reminiscences of a South African Pioneer by Scully, W. C. (William Charles)

But alluvial mining has long had its little day, and ceased to be in and about Sandhurst, and the town lives now by deep quartz mining.

From Australian Pictures Drawn with Pen and Pencil by Willoughby, Howard

Several of the alluvial mining companies are getting gold in increased quantities.

From A Boy's Voyage Round the World by Smiles, Samuel