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V.I.Kazansky (IGEM, Moscow 109017)  
The drilling and investigation of the Kola Superdeep Borehole for the first time provided direct data on the structure and composition of the ancient continental crust at previously inaccessible depths. Rock density and their anisotropy in elestic properties were used as the main parameters for the formalized description and the reference profile on the day surface. The constraints of the proposed integrated model are based both on the investigation of the Kola Superdeep Borehole and on the additional surface studies. The model regards the Pechenga ore district as a horizontal section of a mantle-derived volcano plutonic ore forming system of the central type. It also entails a new interpretation of localization conditions of the sulifide copper nickel deposits and helps to understand the position of the Pechenga ore district in the Pechenga-Imanda-Vavzuga suture zone.
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