Crickey George and you've invested in mining!!
At their most basic, strip ratios can be calculated by dividing overburden thickness by ore thickness. For example, an overburden thickness of 100 meters and an ore thickness of 50 meters would yield a strip ratio of 2:1. That means mining 1 cubic meter of ore would require mining 3 cubic meters.
Strip ratio can mean proceeding with a project or shelving depending on the value of the ore extracted.
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