Location of the deposits and occurrences of gold mineralization in metamorphic complexes of the Kola region is controlled by tectonic zones at the regional scale at the boundaries of major segments of the Fennoscandian Shield. Three zones are the most important: (1) the system of Neoarchean greenstone belts Kolmozero–Voron’ya–Ura-guba along the southern boundary of the Murmansk craton; (2) the suture, delineating the core of the Lapland–Kola orogeny in the north; and (3) the series of overthrusts and faults at the eastern flank of the Salla–Kuolajarvi belt. Gold deposits and occurrences are located within greenstone belts of Neoarchean and Paleoproterozoic age, and hosted by rocks of different primary compositions (mafic metavolcanics, diorite porphyry, and metasedimentary terrigenous rocks). The grade of metamorphism varies from greenschist to upper amphibolite facies, but the mineralized rocks are mainly lower amphibolite metamorphosed, close to the transition from greenschist to amphibolite facies. Gold deposits and occurrences in the northeastern part of the Fennoscandian Shield formed during two periods: the Neoarchean 2.7–2.6 Ga and the Paleoproterozoic 1.9–1.7 Ga. According to paleo-geodynamic reconstructions, these were the periods of collisional and accretionary orogeny in the region. Those Archean greenstone belts, which were reworked in the Paleoproterozoic (e.g., Strel’na and Tiksheozero belts), can contain gold deposits of Paleoproterozoic age.

The paper discusses the main gold metallogeny features within foreign Precambrian shields (excluding sedimentary-metamorphogene deposits of Au-rich conglomerates and magmatogene Au-rich Cu-Ni and PGE deposits) and regional features of the eastern Fennoscandian shield. Data on geological setting of Finnish gold deposits are summarized and analyzed. The paper briefly reviews gold prospecting knowledge within Karelian-Kola region and work results. The author compiled a digital model of gold-specific forecast-metallogenic map for the eastern Fennoscandian shield; based on this model, further prioritized exploration activities in Karelian-Kola region are proposed, potential for discovering medium-sized and major deposits of various formational and geological/economic types is forecasted.