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Placer mining (pronounced plasser, BTW) is mining for gold that is free of the rock. This is usually in the form of gold dust and fine nuggets. The simplest means, and the first used, was panning for gold in the rivers. You can also used a sluice box, where sand is shoveled into a trough with water running through it. Running water carries away lighter materials, and leaves the heavy gold in grooves on the bottom of the sluicebox.

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What replaced the placer mining?

Placer mining was largely replaced by hydraulic mining and hard rock mining methods. Hydraulic mining used high-pressure water jets to extract minerals, while hard rock mining involved digging tunnels and shafts to access mineral deposits underground. These methods were more efficient and able to extract minerals from deeper beneath the surface.


What was the placer mining the most widely used method of mining for gold?

Placer mining was the most widely used method of mining for gold because it involved extracting gold deposits from loose materials like sand or gravel in riverbeds. Miners could easily access these deposits without needing advanced equipment or deep excavation, making it a popular choice during the Gold Rush era.


Who invented open pit mining?

Open pit mining is a widely used mining technique developed centuries ago, and it is difficult to credit a specific individual with its invention. However, open pit mining has been practiced throughout history in various forms, with the ancient Romans known to have used similar methods for extracting minerals. The technique has evolved and is now a prevalent method in modern mining operations.


The person who first introduced the idea of open-pit mining was?

Daniel Jackling introduced the idea of open-pit mining


Who introduced the idea of open pit mining?

Open pit mining has been done since prehistoric times. At first, a quarry was probably opened to recover stone used in building. In this light, no one person or group can claim the introduction or "invention" of open pit mining. Certainly the scale on which we conduct open pit mining today doesn't begin to compare with these ancient methods. But the simple idea of opening a hole in the ground to recover useful material has been brought forward and continues.Daniel Jackling first introduced open-pit mining

Related Questions

What replaced the placer mining?

Placer mining was largely replaced by hydraulic mining and hard rock mining methods. Hydraulic mining used high-pressure water jets to extract minerals, while hard rock mining involved digging tunnels and shafts to access mineral deposits underground. These methods were more efficient and able to extract minerals from deeper beneath the surface.


What are some surface mining methods?

Some surface mining methods include open-pit mining, strip mining, mountaintop removal mining, and placer mining. These methods involve removing the overlying material to access the desired mineral deposits near the surface. Surface mining is often used for coal, metals, and other minerals that are located close to the Earth's surface.


Which type of mining is used to recover titanium and gold from beaches and riverbeds?

Placer mining


What type of mining is used to obtain gold?

Hardrock or Placer?


What methods are used to find Gold?

Gold is typically found through mining methods such as placer mining, hard rock mining, and hydraulic mining. These methods involve extracting gold-bearing ore from the earth and then processing it to extract the gold. Modern methods also include using advanced technologies such as satellite imagery and geochemical analysis to locate potential gold deposits.


Where was sluicing invented?

Sluices were first used in the alluvial mining of gold placer deposits during the California Gold Rush.


What is an placer mining?

Placer mining is a method of mining where minerals are extracted from sediments or alluvial deposits of sand and gravel that contain valuable minerals. This type of mining is usually done using simple tools like pans or sluice boxes to separate the minerals from the sediment. Placer mining is commonly used to mine for gold, tin, and other precious metals.


If metals are deposited in streambeds would probably be used?

The answer is either placer mining, strip mining, underground mining, spoil bank mining or open pit mining


What are three techniques for mining gold in the West?

one way that i know of is placer mining, which is a method used by individual prospectors


What are the different kinds of mining?

The three types of mining -strip mining,open pit mining,and shaft mining


What were early mining methods in the U.S.?

Early mining methods in the U.S. included placer mining, where miners panned for gold in riverbeds; hardrock mining, which involved extracting minerals from deep underground; and hydraulic mining, which used high-pressure water jets to extract minerals. These methods were prevalent during the California Gold Rush in the mid-19th century.


Why was Placer mining the most widely used of mining for gold?

Placer mining was the most widely used method because it was affordable to a large number of prospectors. If you choose placer mining, the crusher and ball mill is common. You could get primary gold production from rock. If you want to get more pure gold production, you should choose other equipment, such as flotation cell, desorption electrolysis equipment and leaching agitation tank and carbon screen. There are equipment that used for mining in xinhaiindustry.com. You could learn more.