FORMALIZATION AND ESTIMATION OF INTEGRATED GEOLOGICAL INVESTIGATIONS : AN INFORMATIONAL APPROACH

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All geological investigations are used in the definite succession in the time and space. For this different geological means are employed (mining works, drilling, geophysical and geochemical investigations, etc). The final expected aim of geological prospecting is the best recognition of studied area by given limitations. Effectiveness of geological mean application is based on three factors : cost, time and informational criterions. Cost and time criterions maybe estimated by simple calculation, but determination of last criterion is a complicated problem. Informational criterion model is composing from three factors : (1) quantitative estimation of information, (2) estimation of informational reliability and (3) estimation of informational value by degree of aim achievement according to the pragmatic criterion. The main aim of the paper is a problem of determination of set of means composing the notion "geological prospecting" (relative to some fixed feature) by assumed reliabilities of the means. The reliability of geological prospecting means is considered at the level of local determination. Reliabilities of information obtaining by separate mean and set of means are analyzed in detail. Suggested procedure of determining reliability for means and sets of means relative to feature is based on improved methodology of conditional probability utilization. The ways providing the increment of reliability of geological means are proposed. The applicability of proposed methods is shown on simplified examples. Utilization of the methods will allow to finding the most optimal combinations of geological means in different physical-geological conditions.
2003-09-25

FORMALIZATION AND ESTIMATION OF INTEGRATED GEOLOGICAL INVESTIGATIONS : AN INFORMATIONAL APPROACH

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