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Article Dans Une Revue Minerals Année : 2019

Geostatistical Estimation of Multi-Domain Deposits with Transitional Boundaries: A Sensitivity Study for the Sechahun Iron Mine

Sara Kasmaee
  • Fonction : Auteur
Giuseppe Raspa
  • Fonction : Auteur
Chantal de Fouquet
Francesco Tinti
  • Fonction : Auteur
Stefano Bonduà
Roberto Bruno
  • Fonction : Auteur

Résumé

In mineral resource estimation, identification of the geological domains to be used for modeling, and the type of boundaries dividing them, is a major concern. Generally, the variables within a domain are estimated with an assumption of the hard boundaries (sharp contact). However, in many cases, the geologic structures that generate a deposit are transitional (overlapping of several geologic domains). Consequently, boundary identification of the geological domains is essential for an accurate estimate of resources. This paper considers a real application to examine whether the addition of geologic information benefits grade estimation in the presence of transitional boundaries. Results proved that the accuracy of the grade estimation can be improved by adding geological information and there is a significant sensitivity in grade estimation results in the existence of transitional boundaries.

Dates et versions

hal-04038878 , version 1 (21-03-2023)

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Citer

Sara Kasmaee, Giuseppe Raspa, Chantal de Fouquet, Francesco Tinti, Stefano Bonduà, et al.. Geostatistical Estimation of Multi-Domain Deposits with Transitional Boundaries: A Sensitivity Study for the Sechahun Iron Mine. Minerals, 2019, 9 (2), pp.115. ⟨10.3390/min9020115⟩. ⟨hal-04038878⟩
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