The basis for a mineral deposit delimitation is a qualitative and quantitative assessment of deposit parameters, qualifying a deposit as an economically valuable object. A conventional approach to the mineral deposit recognition and a deposit detailed parameters qualification in the initial stages of development work in the KGHM were presented in the paper. The goals of such recognition were defined, which through a gradual detailed expansion, resulting from the information inflow, allows for the construction of a more complete decision-making model. The description of the deposit parameters proposed in the article in the context of fuzzy logic, enables a presentation of imprecise statements and data, which may be a complement to a traditional description. Selected non-adjustable and adjustable s-norm and t-norm operators were demonstrated. Operators effects were tested for selected ore quality parameters (copper content and deposit thickness) by constructing adequate membership functions. In a practical application, the use of chosen fuzzy logic operators is proposed for the assessment of the qualitative parameters of copper-silver ore in the exploitation blocks for one of the mines belonging to KGHM Polish Copper S.A. The considerations have been extended by including the possibility of using compensation operators.

This article proposes an unconventional approach to the division of mining royalties between various administrative units affected by mining activities. Typically, a mining royalty is considered the own income of the units where the exploitation is performed and is usually calculated in relation to the tonnage (volume) of the extracted mineral or the value of the raw material produced. In the article, a different approach has been proposed in order to ensure a useful and fair division of the royalty wherein the unit levy calculation approach was combined with the income criterion using Aumann- Maschler bargaining sets. The case study of the Racibórz II-Reservoir 5 pebble deposit, located within three administrative units (districts) in southern Poland was considered. The exploitation of the deposit within each of the districts requires the separate consent of the local authorities, and in the analyzed case, it is currently conducted in two districts. In terms of income, achievable revenues from exploitation for various alliances of the districts that provide the deposit for mining were calculated. The feasible revenues were transformed into appropriate streams of the mining royalty distribution. It was pointed out that the solutions suggested by the Aumann-Maschler bargaining sets can be treated as a fair division. Proper royalty allocation can be an effective, flexible and important factor in encouraging the district authorities to consent to the exploitation. The adoption of solutions based on the Aumann-Maschler bargaining set will meet the requirement of the full use of mineral resources and is an example of externalities compensation resulting from mining activities.