Scholarly record

CREATION OF GEOLOGIC MODEL OF DEPOSIT

J. Ardielli

Abstract

The main objective of deposit geology is in the most precisely way to determine guess of reserves of mineral material on the deposit. For realize of this target it is requisite to construe geologic model of deposit, which utmost approaches to real shape of the deposit. In case of coal deposits it is necessary to carry out regular identification and correlation of coal seam, or more precisely their partial genetic or extractive seams. It necessitates assembling and depicting of borehole profiles with demarcated seams and benches and their each other spatial comparison. Hand-made correlation of seams is very arduous and considerably non operative. Proposed programmatic system brings significant facilitation, specification and especially speeding-up of whole seam’s identification and correlation process. System is based on universal deposit–database, which contains all important geologic, topographical, technological and technical statements about the deposit. For creating of model from data contained in deposit–database, it is inevitable foremost to evaluate petrologic description of rocks in separate boreholes and to assign contractual values of ash content Ad to non-analyzed sections. Together with results of chemicaltechnological analyses stored in database system provides fast and transparent formation and depicts profiles of borehole with marked seams in a graphic way. In seams there are also distinguished sections which satisfy some of important criterions – e.g. maximal average content of ash as qualitative parameter of utility condition (so– called balanced thickness). Definitive outcome of this modeling is a possibility of separate seams spatial model composition.

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