silt sluicing

Игры ⚽ Поможем написать курсовую

Lothal — (Gujarātī: લોથલ, IPA2|ˈloːtʰəl, Eng: Mound of the Dead) was one of the most prominent cities of the ancient Indus valley civilization. Located in the modern state of Gujarāt and dating from 2400 BCE, it is one of India s most important… … Wikipedia
Central Otago Gold Rush — … Wikipedia
Placer mining — (pronounced plass er ) refers to the mining of alluvial deposits for minerals. This may be done by open pit (also called open cast mining) or by various forms of tunneling into ancient riverbeds. Excavation may be accomplished using water… … Wikipedia

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