Coal mining | World Coal AssociationThe choice of mining method largely depends on the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common.
OPENCAST COAL MINING AT LARGE DEPTH IN INDIA .In India, around 92% of the coal is produced by opencast mining method (Table 1). If do mestic coa l pro duction cont inues at 5% increasing rate, the extractable r eserve will last for 45 years.
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Coal mining in northeast India: an overview of ...In northeast India, coal mining was initiated by Medlicott in 1869 ... presence of fire, exposed pit faces, wind erosion and exhaust of heavy earthmover machinery (Nair and Sinha 1987; Ghose and ... (2010) Ambient air quality in opencast coal mining areas of Bankola area (under Eastern coal field ltd.) of Asansol–Raniganj regions. Ecoscan ...
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Coal mining WikipediaCoal mining in India has a long history of commercial exploitation starting in 1774 with John Sumner and Suetonius Grant Heatly of the East India Company in the Raniganj Coalfield along the Western bank of Damodar River. Demand for coal remained low until the introduction of steam locomotives in 1853.
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