Geostatistics for Conditional Simulation of Ore Bodies

摘要: Simulation techniques are frequently used to solve various problems of operational research for the mining industry and more generally in earth sciences (hydrogeology, gravimetry, meteorology, etc.). First, model be simulated is characterized; example, spatial dispersion grades an ore body. Then a simulation technique devised, which must operational, particularly terms computer time. The efficiency produced obviously linked capacity fit main characteristics revealed reality. One most important these characteristics, namely autocorrelation variables, often ignored by models commonly presented classical literature.The originality conditional derives: (1) from fact that simulations meet particular function (covariance or variogram) characterizes reality observed; (2) conditionalization experimental data, i.e., values at data locations equal values; (3) possibility working real three-dimensional space. proposed (turning-bands method) consists simulating on lines (one-dimensional space) then turning This procedure avoids well-known explosion time memories involved procedures extended several dimensions. using with regard spectral analysis third point.