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  • drilling used in open pit iron mining

    drilling used in open pit iron mining

    2018-8-13 · Open cast Mineral Resources are quoted as in-situ tonnages and Mineral Reserves are tonnages falling within an economic pit-shell. The evaluation method is generally Ordinary Kriging with mining block sizes ranging from 10 x 10m to 100 x 100m to 250 x 250m in the plan view.The blocks vary in thickness from 2.5 to 50m.The Inverse Distance method ...

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  • The Explosives Used in Mining

    The Explosives Used in Mining

    2017-10-14 · Commonly used for drilling large-diameter blastholes in open-pit mines. Royalty - An amount of money paid at regular intervals by the lessee or operator of an exploration or mining property to the owner of the ground. Generally based on a certain amount per tonne or a percentage of the total production or profits.

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  • Ten technologies with the power to transform mining

    Ten technologies with the power to transform mining

    A Glossary of the most common mining terms. Published at May 4, 2018, ... Open pit: A mine that is entirely on surface. ... RC drilling is slower and costlier but achieves better penetration than RAB or air core drilling. Recovery: A term used in process metallurgy to indicate the proportion of valuable material obtained in the processing of an ...

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  • Blasting Drilling of Open Pit Mining

    Blasting Drilling of Open Pit Mining

    The main objectives of pre-splitting in open pit mining are:... | Find, read and cite all the research you need on ResearchGate ... Design of controlled blasting (pre-splitting) in Golegohar iron ...

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