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Placer mining involves extracting gold and other minerals from alluvial deposits using water to separate the valuable materials from sediments. Hydraulic mining, a subset of placer mining, utilizes high-pressure water jets to dislodge rock and soil, often causing environmental damage. In contrast, hard rock mining targets minerals embedded in solid rock, requiring drilling, blasting, and the use of heavy machinery for extraction. While placer and hydraulic mining primarily rely on water, hard rock mining focuses on extracting minerals from deeper geological formations.
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What problems can be caused when mining?
The problems caused by mining are: water pollution plant and fish habitats being destroyed dangerous job hard work
What are some materials that need to be mined?
Basically, anything that is not grown has to be dug out of the earth. That includes all metals, all minerals, oil and gas deposits. Odds are the power you are using in your computer right now came from mining- coal, oil, gas or uranium. Your computer contains 37 different elements that were obtained by mining. The wires that bring electrical power to your home are metals- from mining. It would be hard to find a room in your home that does not contain something that came from mining.
Advantage and disadvantage of mining?
Disadvantages? Expensive, dangerous, hard work, can be damaging to the environment.Advantages? Prior to mining was the Stone Age- cavemen chipping tools out of rock. Mining produces ALL of the metals and much of the energy used by modern life. Unless someone grew it, it was mined. The computer you are using to read this contains about 37 materials that came from mining. The electricity to power it may come from coal, oil, or gas produced by mining.risk of, cavins, back lung, dangerous gases, explosions1)lack of water and food.2)heavy metals like lead which causes many diseases.3)radioactive metals such as uranium which cause diseases such as cancer and others.
Is it dangerous mining gold?
Mining is potentially a very dangerous occupation, however, with the health and safety rules in place in most Western countries these risks are well managed. Firstly, are you talking about open cut or underground mining? Depending on the nature of the gold deposit this will dictate the mining method used to extract it. This may range from large open cut operations to small narrow vein airleg mining which is performed underground. Obviously, underground is potentially a more dangerous environment due to the potential for rock falls, equipment fires and even gas explosions (in some mines, not all). Compared to coal however, many consider hard rock mining (ie: gold, nickel, zinc, copper etc) to be far safer due to the fact that metal deposits tend to form in hard rock environments, whereas coal is a sedimentary deposit and is softer. This means that coal mines have a higher potential for roof (or 'back' as we say in metal mining) failure. Actually, in longwall mining for coal the roof is designed to collapse behind the mining front. Underground workings are supported with steel bolts and mesh to prevent them caving which is crucial to stability underground. So generally, wherever you are underground the risk of rock fall is minimal...as long as you NEVER walk under unsupported ground...a BIG NO NO IF YOU WANT TO LIVE. Before you work underground you will receive induction training and what to do in case of emergencies etc. It may seem scary at first but it is very exciting working underground, and the guys on your crew will look out for you as a new guy. That's what is so cool about mining, there is a lot of camaraderie on the mines, a great working environment. So, basically, there are obvious risks in mining especially when you have such large machinery in enclosed spaces, explosives to play with, blasting hauling etc etc. But with some decent initial training, working safely and looking out for your crew mates there is no reason why mining should be any more dangerous in reality than other professions. Comments are based on my experience as a miner/mining engineer working in underground nickel, gold and coal mines
What are the input and output energies of a fridge?
These are the energies that are used at different times for the fridge. There will be different energy levels depending on how hard it works and if the door is open or closed.
What are the two types of gold mining?
The two types of gold mining are placer mining and hard rock mining. Placer mining involves extracting gold from deposits of sand, gravel, and other sediments in rivers and streams. Hard rock mining involves extracting gold from underground ore bodies through drilling, blasting, and processing the ore.
How did placer mining hydraulic mining and hard rock mining differ?
Placer mining involves extracting minerals from loose materials like sand and gravel, usually done by panning or using sluices. Hydraulic mining involves using high-pressure water jets to dislodge materials, often causing environmental damage. Hard rock mining involves extracting minerals from solid rock formations, requiring more labor and machinery than placer mining.
How are placer mining hydraulic mining and hard-rock mining different?
Placer mining involves extracting minerals such as gold from riverbeds and alluvial deposits using techniques like panning and sluicing. Hydraulic mining involves using high-pressure jets of water to dislodge rock and sediment to extract minerals. Hard-rock mining involves underground excavation to extract minerals like gold, silver, and copper from solid rock deposits.
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.
Why are placer mining hydraulic mining and hard-rock mining different?
Placer mining involves extracting minerals from loose material such as gravel or sand, usually done by panning or sluicing. Hydraulic mining uses high-pressure water jets to dislodge material and extract minerals, often causing environmental damage. Hard-rock mining involves extracting minerals from solid rock formations, requiring drilling and blasting techniques. Each method has distinct processes and impacts on the environment.
What is the different between placer mining and quartz mining?
Placer mining is recovering gold dust that has washed into streams and rivers (panning and sluice boxes, as well as dredges today) . Quartz mining involves traditional mining of gold bearing quartz rock, and requires digging,transporting, and crushing the rock to extract the gold.
How did placer mining hydraulic mining and hard-rock mining differ?
Placer mining involves extracting minerals like gold from deposits in rivers and streams using pans or sluice boxes. Hydraulic mining uses high-pressure jets of water to dislodge minerals from hillsides, causing significant environmental damage. Hard-rock mining involves extracting minerals from solid rock formations underground using drilling and blasting techniques.
What are the different kinds of mining?
The three types of mining -strip mining,open pit mining,and shaft mining
What the difference between placer mining and lode mining?
Placer mining involves extracting minerals like gold from loose, unconsolidated materials, such as alluvial deposits or sandbars. On the other hand, lode mining involves extracting minerals from hard rock deposits, typically by following veins or deposits of valuable minerals embedded within the rock.
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 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.
