As pits became deeper—the deepest pits on this planet exceed 800 metres (two,600 toes)—alternate modes of transporting broken ore and waste rock turned a lot more prevalent. A person of these is the belt conveyor, but in general this process needs in-pit crushing in the run-of-mine product prior to transport. https://josuenydhj.bloggactif.com/39038252/what-does-inflation-hedge-mean