Abstract
Geostatistical calculations were carried out on two completely exhausted open-pit bauxite mines in the Iharkut bauxite district, Hungary. Fictitious regular drilling grids were laid on the maps, and horizontal variograms were calculated for drilling grids evaluating the bauxite surface, footwall surface, and bauxite thickness. Point kriging was carried out for all three parameters. Bauxite reserves were calculated using block kriging for bauxite thickness. The total estimation variance of the reserves has been established. Results were compared with real reserves obtained from the mine maps.
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References
Journel, A. G. and Huijbregts, Ch. J., 1978, Mining geostatistics: Academic Press, 600 p.
Maréchal, A. and Roullier, J. P., 1970, Etude geostatistique des gisements de bauxite Francais: Revue de l'Industrie Minérale, v. 52, p. 492–507.
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Bárdossy, A., Bárdossy, G. Comparison of geostatistical calculations with the results of open pit mining at the Iharkut bauxite district, Hungary: A case study. Mathematical Geology 16, 173–191 (1984). https://doi.org/10.1007/BF01032215
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DOI: https://doi.org/10.1007/BF01032215