Selective Mining definition of Selective Mining in the Free Online Encyclopedia.

selective mining [si′lek·tiv ′mīn·iŋ]

(mining engineering)

A method of mining whereby ore of unwarranted high value is mined in such manner as to make the low-grade ore left in the mine incapable of future profitable extraction; in other words, the best ore is selected in order to make good mill returns, leaving the low-grade ore in the mine.

Selective Mining

the separate extraction of useful minerals that occur together or the separate extraction of valuable minerals and gangue. Selective mining ensures the most complete extraction of a useful mineral with minimal depletion, but it increases the costs of extraction and complicates the organization of mining operations.

Deposits with complex structures are selectively worked by blasting blocks without disturbing the geological structure, by blasting the various useful minerals and gangue separately, by blasting along the contact areas of ore bodies and gangue, by blasting and separating layers of rocks simultaneously, and by loosening layers of rocks by means of rippers. Blasted rocks are removed from the face by means of controlled caving, selective vertical or horizontal excavation, sorting within the face, and combined removal. Selective mining is especially efficient when valuable ores are mined because it permits a significant improvement in the quality of the rock mass to be concentrated.

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No references found	“Due to the steep decline in commodity prices, ongoing difficulties achieving targeted mine grades and mill recoveries, and difficult market conditions, it is necessary to make significant reductions in manpower in an effort to achieve positive cash flow through more selective mining underground and higher productivities in the mine and the mill, while endeavouring to improve mill recoveries,” adds Merit. Mining firm set to reduce scale of operations at B.C. site by Buzz on the Boards / Stockhouse Higher quality can be achieved by sorting the run-of-mine or by selective mining. Forecast of Estonian oil shale usage for power generation by Tammeoja, T.; Reinsalu, E. / Oil Shale A selective mining scenario examined the possibility of extracting only the higher grade zones within the bulk estimate and resulted in the resource grade increasing to in excess of 2% Cu (indicated resources of 300,000 tonnes at 3. African Copper Plc: 2005 Drilling Programme Triples Contained Copper ... by Business Wire	selective adsorbent Selective Availability selective bidding Selective Breeding selective calling selective calling system selective circuit Selective Coating selective cracking Selective Dissemination of Information selective dump selective fading selective filling selective flotation selective forgetting selective fracturing selective fusion selective heating selective identification feature selective inhibition selective interference selective jamming selective laser sintering selective loading selective medium Selective Mining selective permeability selective photoelectric effect selective plating selective poisoning selective polymerization selective quenching selective radiator selective reflection selective replacement selective ringing selective scattering selective service selective solubility diffusion selective solvent Selective Telephone Communications selective trace selective transmission selectively doped heterojunction transistor selectivity selectivity coefficient selectivity diagram Selectivity of a Radio Receiver Selector selector channel selector pen	selective jamming selective jamming Selective Jettison Selective Key-from-Image Selective Kidney Disease Medium Selective Kinase Response Modulator Selective Kirchner's Liquid Medium Selective Laryngeal Adductor Denervation-Reinervation Selective Laser Coating Removal Selective Laser Melting Selective Laser Photocoagulation of Communicating Vessels Selective laser sintering Selective laser sintering Selective Laser Trabeculoplasty Selective leaching Selective leaching Selective Level Measuring Set Selective Level Meter Selective Liberal Arts Consortium selective lipectomy selective loading selective loading Selective Mass Storage Selective Maximal Combination Selective media Selective medium Selective medium Selective medium Selective medium selective memory Selective Mining Selective Mining Unit selective mobilization Selective Moving Target Indicator Selective mutism Selective mutism Selective mutism Selective mutism selective myocardial cell necrosis selective myocardial cell necrosis selective myocardial cell necrosis selective myocardial cell necrosis selective neck dissection Selective Negative Acknowledgment Selective Nerve Fascicular Degeneration Selective Nerve Root Block Selective Nerve Root Injection selective neuronal necrosis Selective Neuronal Potassium Channel Opener Selective non-catalytic reduction Selective Nulling of Dominant Interferers Selective oestrogen receptor modulator Selective Optimization of Side Activities Selective Orthogonal Least-Square Selective Packet Discard Selective Parallel Interference Cancellation Selective permeability Selective permeability Selective permeability Selective Phase Transfer selective photoelectric effect

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“Due to the steep decline in commodity prices, ongoing difficulties achieving targeted mine grades and mill recoveries, and difficult market conditions, it is necessary to make significant reductions in manpower in an effort to achieve positive cash flow through more selective mining underground and higher productivities in the mine and the mill, while endeavouring to improve mill recoveries,” adds Merit.

Mining firm set to reduce scale of operations at B.C. site by Buzz on the Boards / Stockhouse

Higher quality can be achieved by sorting the run-of-mine or by selective mining.

Forecast of Estonian oil shale usage for power generation by Tammeoja, T.; Reinsalu, E. / Oil Shale

A selective mining scenario examined the possibility of extracting only the higher grade zones within the bulk estimate and resulted in the resource grade increasing to in excess of 2% Cu (indicated resources of 300,000 tonnes at 3.

African Copper Plc: 2005 Drilling Programme Triples Contained Copper ... by Business Wire

selective adsorbent

Selective Availability

selective bidding

Selective Breeding

selective calling

selective calling system

selective circuit

Selective Coating

selective cracking

Selective Dissemination of Information

selective dump