Production reconciliation of a multivariate uniform conditioning technique for mineral resource modelling of a porphyry copper gold deposit
W Assibey-Bonsu, J Deraisme, E Garcia, P Gomez, H Rios
The paper provides a brief review of a multivariate uniform conditioning
and a localized multivariate uniform conditioning (LMUC) technique,
and presents a production reconciliation case study based on a porphyry
copper-gold deposit in Peru. The reconciliation study compares the longterm
LMUC mineral resources model (typical of new mining projects,
which are invariably based on drilling data on a relatively large grid) to
the corresponding production blast-hole grade control model, as well as
the final plant production.
Keywords: discrete Gaussian model, Localized Multivariate Uniform Conditioning
(LMUC), production reconciliation, smoothing effect, conditional biases,
information effect, simple kriging panel conditioning.