APPLICATION OF GEOSTATISTICS FOR ESTIMATING THE DISTRIBUTION OF ONE OF THE BAUXITE DEPOSIT RESERVE IN THE REPUBLIC OF GUINEA

Abstract

To estimate the content of Al2O3 in the block exploring a bauxite depositsite of Sangaredi in the Republic of Guinea (West Africa), one of geostatistics methods, discrete kriging, was applied. The use of discrete kriging in these conditions allows to ensure tightly controlled amountmore reliably, i.e., not less than 48% of Al2O3 content in the concentrate when shipping it from the processing plant onto bulk carriers. This problem isbecoming more and more urgent as the amount of field parts be ing rich is decreasing.

Keywords

• geostatistics
• kriging
• variogram
• de wijs’s model
• variance of increment
• the distribution of reserves