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Trzeci wymiar geologii złoża rud miedzi

Twardowski Mateusz, Kaczmarek Wojciech, Rożek Robert

Przegląd Geologiczny

2020

Vol. 68, nr 12

886--893

The issue of three-dimensional geological modelling of stratoidal copper and silver ore deposit in the Fore-Sudetic Homocline has been the subject of hot discussions for many years. Formation of a single layer of deposit body can suggest the ease of interpretation of its form and structure, putting into question the need of three-dimensional visualization. The problem of building and updating a model is directly related to the production scale of KGHM Polska Miedź S.A. which is held over an area of495 km2 with an annual progression of around 480 km of underground workings in three mines, which also includes additional exploration of the deposit body. An important step in the time-consuming 3D geological modelling process is the appropriate selection of previously prepared data and the spatial dimension for the target model - in accordance with its intended purpose. The process of 3D geological modelling, currently carried out at KGHM Polska Miedź S.A., can be divided into two related steps: structural modelling and grade modelling. The components of structural models are used in the grade modelling process, acting as a set of geological constraints during the grade estimation process. The products of both steps find practical application in many processes in a mining company.