Open-pit mining is generally less expensive in terms of exploration, development, equipment and operation. Typically, when a recovery operation is developed as an open-pit mine, the valuable mineral deposit is closer to the surface. Also, because it is open-pit, the scale of economy applies, meaning that larger equipment can be used, thus lowering the per-unit cost of operation. In addition, while underground mines must leave behind some of the target minerals in order to provide support for the mine structure, open-pit mines do not.
It should be noted that while open-pit mining is generally the less expensive mining method. that will not always the case. This is due the geology. The nature of the ore body, and the depth and angle of the deposit will enter into cost considerations when choosing a mining method. It can also depend on the rehabilitation requirements as with open pit mining you are left with huge holes in the ground and with under ground/closed mining you simply have a small entry to close with mining is finished.
it is cheaper because for deep mining ,the more deeper the minerals lies, the more difficult it is to discover and the more expensive to mine
It's a closed syllable word.
because air conditioners work throughout a room closed or not closed. if it is open the cool air will get out of the room and the AC will have to cool more air than the air inside the room which will make the AC to work longer and the electricity usage will increase.
no
By open economy it means that economy in which private people are allowed to participate in making economic decisions while,by closed economy it means the economy in which the government is the one planning for the whole society
it is cheaper because for deep mining ,the more deeper the minerals lies, the more difficult it is to discover and the more expensive to mine
Some pros of open pit mining include lower costs compared to underground mining, higher productivity due to easier access to the deposits, and the ability to extract a large quantity of minerals. Additionally, open pit mining can be more environmentally friendly in terms of land reclamation and restoration post-mining.
The two main types of mining are surface mining and underground mining. Surface mining involves extracting minerals or resources from the Earth's surface, while underground mining involves extracting resources from beneath the Earth's surface. Surface mining is generally more cost-effective and less dangerous, but it can have a larger environmental impact compared to underground mining. Underground mining, on the other hand, can be more expensive and pose greater safety risks, but it is less disruptive to the environment.
What are two main types of mining and how do they differ? Open cast mining, and underground mining. The reason they differ, is because underground mining is where they create shafts that lead to ore beds. Open cast mining, is the opposite of underground mining. I really hope this answer is useful! I love to help people get better at science. I hope I helped you guys! Bye.
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A closed skill is often more complex than an open skill.
"Show" is open, "and" is closed. O- is open, -pen is closed. "Closed" is closed.
The most common mining method used to extract ore from beneath the earth's surface is underground mining. This method involves creating tunnels and shafts to access the ore body underground, where miners extract the ore using various techniques. Underground mining can be more expensive and dangerous than surface mining but is necessary for accessing deep deposits of valuable minerals.
It depends. Which is more corrupt? -- An open loop or a closed loop? Whichever one is more corrupt, selfish, and greedy, then that is the one that befits attorneys.
No.
No, not anymore. There are no mines open anymore in the Netherlands. The last (located in Limburg) closed somewhere in the beginning of the 20th century.
Most diamonds are mined with an open-pit mining process. You can read more, below.