Zoeleclerc496 Zoeleclerc496

15-10-2021
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under what circumstances after 1893 was hydraulic mining allowed?

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gaviabella928 gaviabella928

15-10-2021

Answer:

Hydraulic mining developed from ancient Roman techniques that used water to excavate soft underground deposits. Its modern form, using pressurized water jets produced by a nozzle called a "monitor", came about in the 1850s during the California Gold Rush in the United States.

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