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

In framing the licensing regulations, the advisers of the Crown had thought only of the possibilities of alluvial mining.

From The Great Events by Famous Historians, Volume 17 by Horne, Charles F. (Charles Francis)

I made innumerable attempts to find it, but in vain, and the day came when I was constrained to confess to myself that alluvial mining for me was a failure.

From My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) by Sanpietro, I. Stone

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