hydraulic mining การใช้

• The operation of the hydraulic mine greatly damaged the Huaca del Sol.
• Hydraulic mines were reopened from 1933 to 1957 during the Great Depression.
• Hydraulic mining became the largest-scale, and most devastating, form of placer mining.
• A part of the floodplain was reclaimed by method of hydraulic mining.
• Hydraulic mining has since been used in various forms around the world.
• By 1853 miners invented a new method of mining called hydraulic mining.
• When the ditch / flume was completed, full scale hydraulic mining began.
• During the Great Depression, Sterlingville saw a revival of hydraulic mining.
• In addition, the water sources and gradients supported the development of hydraulic mining.
• But with the eventual curtailment of hydraulic mining, miners moved away.
• At one time it was the largest hydraulic mine in California.
• It later evolved into hydraulic mining when used during the California Gold Rush.
• Hydraulic mining was very damaging to the environment on the gulch.
• Today the original site of the town has been destroyed by hydraulic mining.
• One of the main, and also most destructive methods was that of hydraulic mining.
• Hydraulic mining was used to extract clay from the hill.
• Hydraulic mining and blast mining renewed interest in the 1850s.
• The more advanced techniques of ground sluicing, hydraulic mining and dredging may be used.
• This style of hydraulic mining later spread around the world.
• These conditions also allowed the transition from simpler placer operations to more efficient hydraulic mining.