Conference Proceedings
Apcom '77, Brisbane
Conference Proceedings
Apcom '77, Brisbane
Geostatistical Study of a Lower Proterozoic Iron Orebody in the Pilbara Region of Western Australia
The iron orebodies of the Pilbara region are formed by supergene enrichment of banded iron formation and rarely do such processes produce orebodies with uniform grade distrib- utions. The orebodies being mined or developed have to be worked to grade/quality constraints imposed by contractual agreement rather than natural characteristics. Hence it is imperative to use a non-biased ore reserve calculation method. The geostatistical study of a typical iron orebody is presented. Emphasised are the geological characteristics of the orebody manifested as a variable grade distribution of iron and impurities; the determination of variogram model; subsequent uses of the model for computation of ore reserves and kriged lock estimates; computation of dispersion variance and conditional simulation of orebody.
Contributor(s):
A Marechal, P Shrivastava
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- Published: 1977
- PDF Size: 0.483 Mb.
- Unique ID: P197701029