Abstract

Abstract
The handling of the high grade as an outlier on precious metals deposits is very important in geostatistical ore
res
ources
estimation. Ordinary kriging (OK) that is very popular used to estimate the grade of ore re
sources
is
often
inaccurate in handling of the outlier. This paper applied the method of weighted
jackknife kriging (WJK)
as a practical
method to deal with th
e problem of high grade outlier
. The sim
plicity concepts in mathematics and robustness are
the
at
traction of the method
in geostatistical
ore
resources estimation