Paleoproterozoic mafic dyke swarms of the Belomorian Province,eastern Fennoscandian Shield |
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| Authors: | Alexandra Stepanova Vladimir Stepanov |
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| Institution: | Institute of Geology, Karelian Research Centre, RAS, Pushkinskaya St. 11, Petrozavodsk, Karelia, Russian Federation |
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| Abstract: | Paleoproterozoic mafic igneous rocks (2450–1970 Ma) are exposed in the form of layered intrusions, dykes, and volcanic rocks in the Karelian, Kola and Murmansk provinces and in the form of dykes and small intrusions in the Belomorian Province, Eastern Fennoscandian Shield. The age and sequence of mafic dyke emplacement during the Paleoproterozoic are very similar in these regions. Further comparisons of geochemical characteristics of mafic dyke swarms in the Belomorian Province and neighboring cratons show considerable similarities. |
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| Keywords: | Mafic dykes Paleoproterozoic Large igneous province Fennoscandian Shield |
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