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SURFACE MINING

SURFACE MINING UNIT 1- Role of surface mining in mineral production in India, Elements of surface mine planning-height, width, slope, Overall and ultimate pit slopes, Stripping Ratios and Cut off grade. OPENINGS UP OF DEPOSITS-Different system of openings of deposits, Site preparation, Box cut, Formation of benches, Haul roads. Students can download this unit PDF file from here. Along with 48.83% arable land India has significant sources of  c oal (fourth-largest reserves in the world), bauxite, tiranium ore,  c hromite, natural gas, petroleum and limestone.According to the 2008 Ministry of Mines estimates: 'India has stepped up its production to reach the second rank among the  c hromite producers of the world. Besides, India ranks 3rd in production of coal & Lignite, 4th in iron ore, 5th in bauxite, 7th in manganese ore and 8th in aluminium. Indian mines majorly accounts the future prospective of surface mining. W...