modern placer mining techniques

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There are four main mining methods: underground, open surface (pit), placer, and in-situ mining.

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Placer Mining Methods

Placer Mining Methods. Placer means a deposit of gravel which contains particles of gold deposits. The word placer was derived from the Spanish word meaning "sand bank."

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modern placer mining techniques,Summary of Gold Mining Techniques inSummary of Gold Mining Techniques in . Western United States. 18421996 . Placer Mining…

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Summary of Gold Mining Techniques in

Summary of Gold Mining Techniques in . Western United States. 1842 - 1996 . Placer Mining. The first tools used to mine gold were extremely simple, knives ...