Mining MethodsWhat determines the type of mining?Slide 3What are the types of mining?Open Pit MiningSlide 6Another type of open pit miningSome photos and machinery used in open-pit miningSlide 9?Dinky Toy?Drilling in pitCrushing in pitLoading ore in pitSlide 14Some types of underground miningRoom and PillarCut and FillLong WallSolution MiningBeneficiationSlide 21Slide 22Slide 23Methods of concentratingTypes of smeltingSmeltingResult at Kidd CreekHeap LeachingMining MethodsMining MethodsWhat determines the type of What determines the type of mining?mining?Depth of overburdenDepth of overburdenSize of the ore bodySize of the ore bodyShape of the ore bodyShape of the ore bodyGradeGradeWhat are the types of What are the types of mining?mining?Open PitOpen PitUndergroundUndergroundSolutionSolutionOpen Pit MiningOpen Pit MiningAnother type of open pit Another type of open pit miningminingStrip MiningStrip MiningE.g. coal, placerE.g. coal, placerSome photos and Some photos and machinery used in open-machinery used in open-pit miningpit mining?Dinky Toy??Dinky Toy?Drilling in pitDrilling in pitCrushing in pitCrushing in pitLoading ore in pitLoading ore in pitSome types of underground Some types of underground miningminingRoom and PillarRoom and PillarCut and FillCut and FillLong wall (coal)Long wall (coal)Room and PillarRoom and PillarCut and FillCut and FillLong WallLong WallSolution MiningSolution MiningBeneficiationBeneficiation1.Concentration of ore minerals1.Concentration of ore mineralsremoves the ore mineral from the wasteremoves the ore mineral from the waste2. Smelting2. Smelting removes the metal from the ore mineral removes the metal from the ore mineral by a variety of waysby a variety of ways3. Heap Leaching3. Heap Leaching removes metal from the ore by solutionremoves metal from the ore by solutionMethods of concentratingMethods of concentratingGrinding of ore to allow separation of Grinding of ore to allow separation of the ore minerals by:the ore minerals by:–FloatationFloatation–MagnetsMagnetsTypes of smeltingTypes of smeltingRoastingRoastingHydrometallurgyHydrometallurgyElectrotwinningElectrotwinningSmeltingSmeltingResult at Kidd CreekResult at Kidd CreekHeap LeachingHeap LeachingIn this process, typically done for Au, In this process, typically done for Au, the ore is not ground, but rather, the ore is not ground, but rather, crushed and piled on the surface. crushed and piled on the surface. Weak solutions percolate through the Weak solutions percolate through the material leaching out the desired material leaching out the desired metals.metals.The solutions are collected and the The solutions are collected and the metals are precipitatedmetals are