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Case Report

Assessing the Impact of Geologic Contact Dilution in Ore/Waste Classification in the Gol-Gohar Iron Ore Mine, Southeastern Iran

1
Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman 7616914111, Iran
2
Simulation and Data Processing Laboratory, School of Mining Engineering, College of Engineering, University of Tehran, Tehran 1417414418, Iran
3
Department of Mining Engineering, University of Chile, Santiago 8370448, Chile
4
Advanced Mining Technology Center, University of Chile, Santiago 8370448, Chile
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(4), 336; https://doi.org/10.3390/min10040336
Received: 25 February 2020 / Revised: 27 March 2020 / Accepted: 7 April 2020 / Published: 9 April 2020
(This article belongs to the Special Issue Geological Modelling, Volume II)
Since the Gol-Gohar iron ore mine (GGIOM), which is located in southeastern Iran, is currently one of the biggest iron mines in this region, increasing the accuracy of its mineral resources model has become a challenge for geologists, metallurgists and mining engineers. Given that an accurate classification of the mining blocks into ore or waste is highly significant in strategic mine planning, three approaches for simulating the iron grades were compared against the true grades obtained from production data. The comparison was done by calculating the ratio between the total number of blocks correctly classified as ore and waste and the total number of misclassified blocks, and it was conducted for each approach in three mined benches at the GGIOM. The results reveal that the grade simulation that ignores the geological boundaries and the grade simulation based on a deterministic geological interpretation are much less accurate than the hierarchical approach, which consists of simulating both the geological boundaries and the grades. View Full-Text
Keywords: mining dilution; direct block simulation; truncated gaussian simulation; Gol-Gohar iron ore mine mining dilution; direct block simulation; truncated gaussian simulation; Gol-Gohar iron ore mine
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MDPI and ACS Style

Masoumi, I.; Kamali, G.; Asghari, O.; Emery, X. Assessing the Impact of Geologic Contact Dilution in Ore/Waste Classification in the Gol-Gohar Iron Ore Mine, Southeastern Iran. Minerals 2020, 10, 336. https://doi.org/10.3390/min10040336

AMA Style

Masoumi I, Kamali G, Asghari O, Emery X. Assessing the Impact of Geologic Contact Dilution in Ore/Waste Classification in the Gol-Gohar Iron Ore Mine, Southeastern Iran. Minerals. 2020; 10(4):336. https://doi.org/10.3390/min10040336

Chicago/Turabian Style

Masoumi, Iman, Gholamreza Kamali, Omid Asghari, and Xavier Emery. 2020. "Assessing the Impact of Geologic Contact Dilution in Ore/Waste Classification in the Gol-Gohar Iron Ore Mine, Southeastern Iran" Minerals 10, no. 4: 336. https://doi.org/10.3390/min10040336

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