What is the difference between surface mining underground mining and alluvial mining. give 4points if possible minimum 3
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Surface mining can be done on the surface, such as mountain top, beaches.
Underground mining is done by digging tunnels to extract minerals that are too far underground to be reached from surface mining.
In alluvial mining, minerals are extracted by dredging alluvial deposits.
In surface mining, the topsoil and bedrock are removed to access the ore and it's all done from the surface.
In underground mining, the bedrock is kept intact and tunnels are used to access the ore from below.
Alluvial mining involves digging and sifting through mud, sand, and gravel using shovels, sieves or even bare hands.
Surface mining is suitable for large, low-grade ore deposits which occur below a thin layer of rock or sand.
Underground mining is used for small, high-grade deposits covered with a thick soil or rock above the ore.
Alluvial mining is suitable for deposits in sand and riverbeds.
surface mining is commonly used to extract coal and copper.
Underground mining is used for zinc, lead, and increasingly coal.
Alluvial mining is used for precious metals like gold and diamond.
Underground mining is done by digging tunnels to extract minerals that are too far underground to be reached from surface mining.
In alluvial mining, minerals are extracted by dredging alluvial deposits.
In surface mining, the topsoil and bedrock are removed to access the ore and it's all done from the surface.
In underground mining, the bedrock is kept intact and tunnels are used to access the ore from below.
Alluvial mining involves digging and sifting through mud, sand, and gravel using shovels, sieves or even bare hands.
Surface mining is suitable for large, low-grade ore deposits which occur below a thin layer of rock or sand.
Underground mining is used for small, high-grade deposits covered with a thick soil or rock above the ore.
Alluvial mining is suitable for deposits in sand and riverbeds.
surface mining is commonly used to extract coal and copper.
Underground mining is used for zinc, lead, and increasingly coal.
Alluvial mining is used for precious metals like gold and diamond.
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Explanation:
Distinguish between surface mines with underground mines. write briefly about status of surface mining in India.
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