strip ratio for something 20 m thick starting from 20 m deep will be >1 because the pit will have at best 45degree walls for clay, it doesn't have vertical walls. So the deeper it is, the more surface strip to get down there in the open pit trapezoid shape.
Trying to extract the table data so I can work out average depth, average thickness and average grades. Could be useful to better understand the deposit and estimate what the MRE might look like.
Ann: Jupiter Continues to Deliver with Record NdPr over 5,000 ppm, page-30
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