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How did placer mining hydraulic mining and hard rock mining differ?
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What is the difference between placer mining and hardrock mining?
Placer (pronounced plass-er) seeks to recover gold that heas been weathered, is in the form of dust and small nuggets, and has been washed out of the rock formation. Panning for gold is placer mining. Hard rock mining removes solid chunks of rock that must be crushed to recover the gold.
What is Underground Mining?
underground mining is done when the rocks, minerals of gemstones are too far underground to get out with surface mining some kinds of underground mining are Borehole Mining Drift Mining Hard Rock Mining Shaft Mining Slope Mining
Why was placer mining the most widely used method o mining for gold?
1 - low cost to start. Just need to get to the area where gold has been discovered, stake a claim, and buy some hand tools. 2 - gold is "free" or liberated from the other rock in which it is engrained. Moving water has performed the work of expensive mills that are used in hard rock sources to break the rock down and free up the gold that is in it.
How do you prospect?
It very much depends on what type of gold mining you are doing. There is Placer mining, hard rock mining, high banking and dry desert mining, among others. Most miners begin with a Gold pan and prospect along rivers and streams that are known as having produced gold in the past. You'll want to prospect in cracks and crevices. Dig out the sand and gravel with a spoon or ice pick. Break the crack open with a pry bar and pan the contents of the crack. The object is to get top the bottom of the crack by any means. Also you will want to pan behind large boulders and pieces of bedrock. Look for moss and grass roots. In time you will learn where the best spots will be, That is called "reading the river".
Does clay absorb water?
Clay has an extremely low permeability (the hydraulic conductivity of clays range from 10-8 to 10-12 m/s) but is not totally impermeable or else it's hydraulic conductivity would be equal to zero. However in practical applications, clay is often assumed to be impermeable as there are few natural materials with lower hydraulic conductivity values.
What resources did mining companies have that individual prospectors did not?
It had hydraulic mining and hard-rock mining
What resource did mining companies have that individual prospector did not?
It had hydraulic mining and hard-rock mining
What is the difference between placer mining and hardrock mining?
Placer (pronounced plass-er) seeks to recover gold that heas been weathered, is in the form of dust and small nuggets, and has been washed out of the rock formation. Panning for gold is placer mining. Hard rock mining removes solid chunks of rock that must be crushed to recover the gold.
What are the machines used to mine diamond?
Your answer depends on the type of diamond mining that interests you. The types are Artisanal Mining, Hard Rock Mining, Marine Mining, Open Pit Mining and Placer Mining. You can read about the equipment used in each type of mining below: http://www.allaboutgemstones.com/diamond_mining.html
What equipment did the gold rush use?
The full answer depends on which gold rush you're talking about. But if you're referring to the most famous gold rush in America that occurred in 1849 in California, then most of the miners were prospecting for placer gold (as opposed to hard rock mining, where the gold is trapped inside the rock). For placer mining, the miners mostly used: - picks and shovels (to loosen and gather gold-bearing dirt for processing) - gold pans (to separate gold from the dirt) - sluice boxes (to separate gold from the dirt) - rocker boxes (to separate gold from the dirt) For hard rock mining, a lot of other equipment is needed, such as dynamite, to get the ore, crushers to crush the ore, mules and mining carts to haul the ore, mining hats and carbide lanterns, etc.
Is mining for gold hard?
No, it is not.
what is the mining of live?
Hard
Is the Hydraulic brake system calculations available?
hydraulic brake system calculations
Is gold mining dangerous?
gold mining is dangerous because you have to get money and have a lot of money and gold mining is hard
What is Underground Mining?
underground mining is done when the rocks, minerals of gemstones are too far underground to get out with surface mining some kinds of underground mining are Borehole Mining Drift Mining Hard Rock Mining Shaft Mining Slope Mining
Where are goldfound?
Lode veins in hard rock and the lowest points in placer deposits, usually sitting on a layer of bedrock.
Why was mining for gold such hard work?
Mining for gold was very hard work. This was because gold usually came in very small pieces and was hard to extract from the rock it was imbedded in .
