volume 74, issue 2, P269-278 2021
DOI: 10.1590/0370-44672020740075
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Cristina da Paixão Araújo, Marcel Antônio Arcari Bassani, Vanessa Cerqueira Koppe, João Felipe Coimbra Leite Costa, Amílcar de Oliveira Soares

Abstract: Most mining decisions are based on models estimated/simulated given the information obtained from samples. During the exploration stage, samples are commonly taken using diamond drill holes which are accurate and precise. These samples are considered hard data. In the production stage, new samples are added. These last are cheaper and more abundant than the drill hole samples, but imprecise and are here named as soft data. Usually hard and soft data are not sampled at the same locations, they form a heterotopi…

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