Influence of the ore block model estimation on the determination of the mining cutoff grade policy for sustainable mine production

Atac Bascetin, Serkan Tuylu*, Antonio Nieto

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

13 Citations (Scopus)


Strategic mine planning includes different cut-off grade policy depending on economic parameters of mining projects and grade-tonnage distribution of the deposit. Minimizing incorrect classification of ore and waste during grade-tonnage distribution is of critical importance for a mining operation. This article reviews the influence of the ore grade-tonnage distribution over the cut-off grade policy in a given mining operation. In this study, firstly, the interpolation parameters used to characterize the grade-tonnage distribution in the orebody are given. The resulting distribution of ore and waste is used to analyze uncertainty, risk impact, and to justify mine-planning decisions, according to the interpolation technique used and the number of geological settings and sampling scenarios being considered. Then, the working scheme of the cut-off grade policy and economic parameters are compared according to the resulting estimation from the inverse distance and the nearest neighbor methods.

Original languageEnglish
Pages (from-to)1409-1418
Number of pages10
JournalEnvironmental Earth Sciences
Issue number5
Publication statusPublished - Nov 2011
Externally publishedYes


Acknowledgments This work was supported by the Scientific and Technological Research Council of Turkey (Project Numbers: 108M176) and also by The Research Institute of Istanbul University (Project Numbers: T-2456/23052008 and UDP-4306/25092009).

FundersFunder number
Research Institute of Istanbul UniversityT-2456/23052008, UDP-4306/25092009
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu108M176


    • Cut-off grade
    • Grade-tonnage distribution
    • Inverse distance
    • Nearest neighbor


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