2014
DOI: 10.1590/s0370-44672014000200013
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Minimum/maximum autocorrelation factors applied to grade estimation

Abstract: It is frequent to face estimation problems when dealing with mineral deposits involving multiple correlated variables. The ResumoNa indústria mineira, a estimativa de múltiplas variáveis correlacionadas é comum, na qual os modelos devem reproduzir a correlação exibida pelos dados. Porém, se as variáveis forem estimadas individualmente por krigagem e a informação da correlação não for incorporada explicitamente, não há garantia de que a correlação observada nos dados será reproduzida. A abordagem clássica pa… Show more

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(1 citation statement)
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“…Cokriging is used in the earth sciences for predicting coregionalized variables at locations where no observation is available. Application fields include mineral resource assessment (Journel and Huijbregts 1978;Pan et al 1993;Gálvez and Emery 2011;Emery 2012;da Silva and Costa 2014;Minnitt and Deutsch 2014;Uygucgil and Konuk 2015;Cornah and Machaka 2015), petroleum reservoir modeling (Xu et al 1992;Hohn 1999;Masihi and Zarei 2010;Schwab et al 2011;Cao et al 2014;Jalalalhosseini et al 2014), groundwater hydrology (Ahmed and de Marsily 1987;D'Agostino et al 1997D'Agostino et al , 1998Kitanidis 1997;Boezio et al 2006;Dalla Libera et al 2017;Olea et al 2018), geochemistry (Wackernagel 1988;Roberts and McKenna 2009;Tolosana-Delgado and van den Boogaart 2013;Lark et al 2014;Pawlowsky-Glahn et al 2015;Fabijańczyk et al 2016;Fouedjio 2018), soil sciences (Yates and Warrick 1987;Stein et al 1988), and environmental sciences (Goovaerts 1997;Bohorquez et al 2017;Borkowski and Kwiatkowska-Malina 2017).…”
Section: Introductionmentioning
confidence: 99%
“…Cokriging is used in the earth sciences for predicting coregionalized variables at locations where no observation is available. Application fields include mineral resource assessment (Journel and Huijbregts 1978;Pan et al 1993;Gálvez and Emery 2011;Emery 2012;da Silva and Costa 2014;Minnitt and Deutsch 2014;Uygucgil and Konuk 2015;Cornah and Machaka 2015), petroleum reservoir modeling (Xu et al 1992;Hohn 1999;Masihi and Zarei 2010;Schwab et al 2011;Cao et al 2014;Jalalalhosseini et al 2014), groundwater hydrology (Ahmed and de Marsily 1987;D'Agostino et al 1997D'Agostino et al , 1998Kitanidis 1997;Boezio et al 2006;Dalla Libera et al 2017;Olea et al 2018), geochemistry (Wackernagel 1988;Roberts and McKenna 2009;Tolosana-Delgado and van den Boogaart 2013;Lark et al 2014;Pawlowsky-Glahn et al 2015;Fabijańczyk et al 2016;Fouedjio 2018), soil sciences (Yates and Warrick 1987;Stein et al 1988), and environmental sciences (Goovaerts 1997;Bohorquez et al 2017;Borkowski and Kwiatkowska-Malina 2017).…”
Section: Introductionmentioning
confidence: 99%