Simple alternative to disjunctive kriging
نویسنده
چکیده
Synopsis The regression effect in ore-reserve estimation has been identified, described and quantified in vein and reef deposits for more than twenty years. Its importance in ‘three-dimensional’ deposits whether underground or open-pit -has been recognized under the alternate guise of the geostatistical volume-variance relationship. The Fontainebleau school has developed the technique of disjunctive kriging to combat the regression−volume-variance effect, but this is not yet widely available (or understood) in a form in which the ordinary user could apply it. A new and simpler approach to this problem is proposed, its development on a Cornish tin vein is briefly described and a fuller case study of its application to part of a three-dimensional uranium deposit in South Greenland is given.
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