Computer-based reserve estimation and grade control: practitioners' views

CIM Bulletin, Vol. 83, No. 942, 1990
N. Champigny and P.H. Grimley, The Coopers & Lybrand Consulting Group, Toronto, Ontario
Abstract Fourteen companies (Appendix) representing senior mining organizations in Canada were canvassed in order to assess: (1) the current usage and trends, and (2) the usefulness of computer applications in ore reserve estimation and grade control. The results of the questionnaire suggest that:

computers are unsurprisingly, predominant in the mining industry for calculating reserves and performing grade control;
time and cost savings are realized; 
computer-based approaches are applicable to underground situations;
geological information is incorporated to the computerization process; and
computer usage does not hinder the collaboration of geologist and mining engineer.

A clear need is identified for case histories comparing computer-calculated ore reserves and actual production data.
Keywords: Computer applications, Grade control, Ore reserve estimations
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