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Scopus CiteScore 2024

4.8

Calculated on 05 May, 2025

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0.31

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Idioma

Journal of Multidisciplinary Applied Natural Science

e-ISSN: 2774-3047


v. 5 n. 2 (2025) Articles https://doi.org/10.47352/jmans.2774-3047.252

Geostatistical Modeling using Ordinary Kriging for Estimating Nickel Resources in Sulawesi Indonesia

Irfan Marwanza Danu Putra Masagus Ahmad Azizi Wiwik Dahani Rhazes Eesha Gumay Silvia Immanuela Sahetapy

Informações do autor

Irfan Marwanza

https://orcid.org/0000-0003-3544-4886
  • irfanm@trisakti.ac.id
  • Department of Mining, University of Trisakti, Jakarta-11450 (Indonesia)
  • Biografia não informada.

Informações do autor

Danu Putra

https://orcid.org/0000-0002-7950-2593
  • danu.putra@trisakti.ac.id
  • Department of Mining, University of Trisakti, Jakarta-11450 (Indonesia)
  • Biografia não informada.

Informações do autor

Masagus Ahmad Azizi

https://orcid.org/0000-0003-2965-8124

Informações do autor

Wiwik Dahani

https://orcid.org/0000-0002-6791-3117
  • wiwik_d@trisakti.ac.id
  • Department of Mining, University of Trisakti, Jakarta-11450 (Indonesia)
  • Biografia não informada.

Informações do autor

Rhazes Eesha Gumay

https://orcid.org/0009-0005-0271-4845
  • 24145258@student.uwa.edu.au
  • Business Analytics, University of Western Australia, Crawley WA-6009 (Australia)
  • Biografia não informada.

Informações do autor

Silvia Immanuela Sahetapy

https://orcid.org/0009-0003-8808-8288
  • si.sahetapy24@gmail.com
  • Department of Mining, University of Trisakti, Jakarta-11450 (Indonesia)
  • Biografia não informada.

Publicado em: março 02, 2025

[1]
I. Marwanza, D. Putra, M. A. Azizi, W. Dahani, R. E. Gumay, e S. I. Sahetapy, “Geostatistical Modeling using Ordinary Kriging for Estimating Nickel Resources in Sulawesi Indonesia”, J. Multidiscip. Appl. Nat. Sci., vol. 5, nº 2, p. 383–397, mar. 2025.

Resumo

Geostatistic is a statistical tool used in the mining sector to estimate and classify mining resources at a specific location. The purpose of this study was to evaluate the distribution or model of nickel resources, as well as estimate and classify nickel resources using a geostatistical approach. This study used data from exploration drilling at one of the nickel mining concessions in Sulawesi, Indonesia. The data set included 464 drill holes with an average distance of 50–100 m. The initial stage in this study was to develop a geological model, followed by descriptive statistical analysis, with the results of the variance coefficient ranging from 0.5 to 1.5 and normal distribution, indicating that the ordinary kriging method can be used and is considered adequate to produce sound and consistent findings. The values obtained from the variogram analysis on the spherical model will be used as parameters in the ordinary and  efficiency kriging processes. Based on the estimation and classification of nickel resources using ordinary and efficiency kriging, the total measured, indicated, and inferred nickel resources are 39, 1.25, and 3 million tons, respectively, with an average Ni content of 1.16%.

Referências

Informações do artigo