The accumulation and sudden discharge of a quantity of water (in placer mining, where water is scarce). In California, the contrivances for collecting and discharging water are termed "self-shooters," an idea suggested by the sudden and violent manner in which the water makes its escape. In booming, snowmelt or water from small or ephemeral streams is collected behind a dam with a discharge gate. Placer ore is placed below the dam and when the water is released, the ore is washed through sluice boxes, ground sluices, etc., in one large surge. The dam discharge gate is closed to again begin collecting water for the next cycle. Syn: hushing
Source:
Dictionary of Mining, Mineral, and Related Terms












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