MINERAL AND ENERGY RESOURCES IN INDIA
MINERALS
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Detailed explanation-1: -Underground mining. Surface (open pit) mining. Placer mining.
Detailed explanation-2: -Minerals and Power Resources (i)Open cast mining: In this method minerals lying at shallow depths are taken out by removing the surface layer. (ii)Shaft mining: In it deep bores (called shafts) are made to reach mineral deposits lying at large depths. (iii)Drilling: Here deep wells are bored to take out minerals.
Detailed explanation-3: -Minerals can be extracted by mining, drilling and quarrying.
Detailed explanation-4: -Minerals can be extracted by mining, drilling or quarrying (Fig 3.3). The process of taking out minerals from rocks buried under the earth’s surface is called mining. Minerals that lie at shallow depths are taken out by removing the surface layer; this is known as open-cast mining.
Detailed explanation-5: -Minerals are obtained by a process called mining. Metallic minerals are generally found in igneous rocks. Ferrous minerals contain iron. Peat has very little carbon.