volume 74, issue 2, P199-207 2021
DOI: 10.1590/0370-44672020740034
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Bruno de Deus Afonseca, João Felipe Coimbra Leite Costa

Abstract: Non-linear geostatistical methods are known to deal appropriately with the geological and geometrical complexity of gold deposits. This article reports the results related to an investigation to improve the gold content estimate based on restricted ore modeling to honor the structural aspects that control the mineralization. The grade domains are defined by using structural measurements to guide the indicator kriging (IK) estimator. Relevant grade intervals are chosen as indicators. Kriging the indicators prov…

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