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Mining

Mining for coal is something that is widely known, but did you know that diamonds, uranium, copper, and other non-renewable natural resources are also mined? There are two types of mining; surface and subsurface. Questions about the methods and types of mining, what ores are mined, and related questions should be asked in this category.

4,677 Questions

How and where is jade mined?

Jade is mined through both surface mining and underground mining methods in various countries such as Myanmar, China, and Guatemala. The mining process involves extracting jadeite or nephrite rough stones from the earth's crust using tools like picks, shovels, and explosives. The extracted jade is then processed, cut, and polished before being sold on the market.

What is the difference between placer mining and sluicing?

Placer mining involves extracting minerals from loose deposits like sand or gravel using simple tools like pans or shovels. Sluicing, on the other hand, is a method that uses a water channel or sluice box to separate gold or minerals from sediment by allowing water to flow through and wash away lighter materials, leaving behind the heavier particles.

How did miners know where gold was?

Miners used various methods to identify areas with potential gold deposits, such as studying geological maps, looking for signs of mineralization in the rock formations, observing the presence of indicator minerals, and panning for gold in nearby streams. They also relied on their experience and knowledge of the local geology to determine where gold might be found.

How much iron ore produced each year?

Approximately 2.2 billion metric tons of iron ore are produced globally each year. The top iron ore producing countries are Australia, Brazil, and China. Iron ore is a key ingredient in steel production and is essential for the construction and manufacturing industries.

How do most creationists believe that coal formed?

Most creationists believe that coal formed rapidly during the Biblical flood around 4,500 years ago. They argue that the layers of dead vegetation were quickly buried and compressed, leading to the rapid formation of coal seams.

What are the environmental implication in open pit mining?

The sheer size of these mines means that the degree of habitat loss and aesthetic degradation is considerable. Another impact is chemical contamination from acid drainage. Once mining is complete, abandoned puts gererally fill up with grounwater, whic soon becomes toxic as water and oxygen reacts with sufides left harm wildlife, percolate into groundwater supplies, and developed nations require that waste heaps be capped with clay, the capped with soil, andthen plated with begetation once mines are closed

How deep down is a bituminous coal mine vertical shaft?

There are 2 kinds of coal mine shafts-- slope or dug horizontally then down, or a vertical shaft dug nearly straight down. Some coal mines use both--a wide tunnel dug as a slope, then down. However, in the 1800s, they often crawled into a slope mine.

Depth of either type, and for either bituminous coal or anthracite coal, can be 1,000 to 2,000 feet underground. Most mines also have labyrinths of tunnels throughout, which can go to different depths.

Why have scientists never dug a hole to the centre of earth?

Scientists have not dug a hole to the center of the Earth because of extreme heat and pressure at those depths. It is currently not technologically possible to dig that deep and sustain human life. Additionally, the costs and risks involved in such a project make it unfeasible.

Where is biotite mico mined?

Biotite mica is mined in various countries including India, South Africa, Brazil, and the United States. India is one of the leading producers of biotite mica in the world.

How much iron ore was on Edmund Fitzgerald?

The Edmund Fitzgerald was carrying approximately 26,116 tons of iron ore when it sank.

What is common name of ore?

Ore is a common name used for mineral deposits that contain valuable metals or elements that can be extracted for use. Some examples include iron ore, copper ore, and gold ore.

How are minerals helpful?

Minerals are essential for various bodily functions such as bone formation, nerve function, and muscle contraction. They also play a crucial role in maintaining a healthy immune system and aiding in energy production. Minerals are necessary for overall well-being and proper growth and development.

What do ore deposits form from?

Ore deposits typically form from the concentration of ore minerals within Earth's crust through various geological processes such as hydrothermal fluids, magmatic segregation, or sedimentary accumulation. These processes involve the mobilization and concentration of valuable elements or minerals in specific areas, leading to the formation of economically viable deposits.

How many coal mines exist today in the world?

There are thousands of coal mines operating around the world today, with major producers being China, the United States, India, and Australia. However, the number of active coal mines fluctuates due to factors like market demand and regulatory changes.

What does fullers earth look like?

Fuller's earth typically appears as a fine, light grayish-white powder. It has a smooth texture and is often used for its absorbent properties in various applications such as skin care products, industrial processes, and pet care.

Why do we need to extract iron from it's ore?

We extract iron form it's ore so that we can use it for a lot more things. For Example, this process makes wrought iron which can be used for ornamental work in gates. A lot of the iron from the blast furnace can be made into steel.

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What is mining and methods of mining and its impact?

A natural hazard is a threat of a natureoccurring event that will have a negative effect on people or the environment. Many natural hazards are interrelated, e.g. earthquakecan cause tsunamiand droughtcan lead directly to famineor population displacement. It is possible that some natural hazards are intertermporally correlated, as well. A concrete example of the division between a naturalhazard and a natural disaster is that the 1906-san-francisco-earthquakewas a disaster, whereas living on a fault line is a hazard.

How the human activities cause weathering of rocks and soil in logging?

Human activities such as logging can cause weathering of rocks and soil by disrupting natural ecosystems, leading to increased erosion and exposure of bare soil to the elements. Additionally, heavy machinery used in logging can physically break down rocks and soil, accelerating the weathering process. The removal of vegetation during logging can also alter microclimatic conditions, further speeding up the weathering of rocks and soil.

Is gold mines in western US renewable?

Gold mines in the western US are not considered renewable resources because they are formed over geologic timescales through deposits of gold-bearing minerals. Once these deposits are depleted through mining activities, it is not feasible for them to be regenerated within a human timeframe.

Will earth be gone?

It's unlikely that Earth as a planet will be completely gone, but its environment and ecosystems could change dramatically if current trends in climate change and environmental degradation continue unchecked. It's important for humans to take action to protect the planet and its resources for future generations.

How many underground minesites are operational in the world at the start of 2011?

Hundreds of thousands. I know of no one world wide source of information on the total numbers.

What are positive impacts of subsurface mining?

Positive impacts of subsurface mining include access to valuable minerals and resources that are essential for economic development and technological advancements. Additionally, subsurface mining can create job opportunities in surrounding communities and contribute to local economies through taxes and royalties. Improved technology and regulations have also helped to minimize environmental damage and improve safety standards in subsurface mining operations.

What are the causes of coal mining?

The main causes of coal mining include the demand for energy production, economic benefits, job creation, and resource availability. Coal is a significant source of fuel globally and plays a crucial role in meeting energy demands in various industries. The abundance of coal reserves in many regions has also led to increased mining activities.

Where and how gravel is mined?

Gravel is typically mined from quarries or pits where it is extracted using heavy machinery such as excavators and bulldozers. The process involves removing layers of soil and rock to access the gravel deposits, which are then crushed, screened, and sorted to various sizes for different construction applications. Regulations and permits are required to ensure responsible mining practices and environmental protection.

What is a consequence of uranium mining?

One consequence of uranium mining is environmental degradation, such as deforestation, soil erosion, and contamination of water sources with radioactive materials. This can harm local ecosystems and wildlife, as well as neighboring communities who rely on these resources. Additionally, uranium mining can pose health risks to miners due to exposure to radioactive materials.