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Cokriging Partial Grades - Application to Block Modeling of Copper Deposits

Abstract : This work concerns mineral deposits made of geological bodies such as breccias or lenses that contain several categories of grades with different characteristics in terms of distribution and variogram. When production blocks contain few such bodies, estimating block grades by ordinary kriging may produce unrealistic spatial continuity. We propose a method based on the indicators of objects (units or facies) together with their products with the grade. This is illustrated by an application to a porphyry copper deposit.
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Submitted on : Wednesday, January 16, 2013 - 2:30:36 PM
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  • HAL Id : hal-00776896, version 1


Serge Antoine Séguret, Julio Beniscelli, Pablo Carrasco. Cokriging Partial Grades - Application to Block Modeling of Copper Deposits. 9th International Geostatistical Congress, Jun 2012, Oslo, Norway. pp.on CD. ⟨hal-00776896⟩



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