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The article presents a study which investigates the data, Baltic shield, and the significance of Archean rocks of the Vodlozero Domain for geodynamic reconstructions. It says that the marginal parts of the Vodlozero domain consists of greenstone belts which comprise primarily of metamorphosed komatiite or basaltic volcanic. It states that the basement rocks are compose of eastern part of the Palaya Lamba and comprise granitoid complexes which represent polymigmatites with a tonalitic prolith. It mentions that some of the rocks that were examined are tonalities, trondhjemites, vein granites, dike gabbroamphibolite, andesite, trondhjemite, granites, and gabbroamphibolite.

Zircons with an anomalously high content of Y and REEs in rims were first found in rocks of the Baltic shield (in a pegmatite vein in the Gridino eclogite-bearing melange and in quartz syenites of the North-Karelian greenstone belt); the total content reaching 17 wt %. The presence of such an amount of nonformula elements is caused by the isomorphic occurrence of them in zircon and is not associated with microinclusions of accessory minerals. The age of formation of these rims was determined as the Svecofennian, although the direct dating yields underestimated values of the age, which are void of geological sense. [ABSTRACT FROM AUTHOR]

The article presents a study which analyzes the geology and geophysics of the discovery of apatite deposits in the Baltic Shield and its slopes. It says that greenstone belts are made of metamorphosed volcano-sedimentary rocks of the Lopian Complex (AR2 in the Karelian Craton. It states that metavolcanogenic rocks' spacious development areas determine their important mineragenic potential. It mentions the relation of the formation of regenerated riftogens to the final phase (N-Q) of tectono-magmatic activation of riftogenic structures and zones of tectonic faults in the Baltic Shield and adjacent regions of the Arctic Ocean. Results show basic revision of the apatite-bearing potential of the Baltic Shield and its slopes.