Sources and possible causes of Paleoproterozoic magmatism in the southern part of the Karelian Craton (Baltic Shield)

There is an opinion that Paleoproterozoic magmatism in the Karelian craton of the Baltic Shield is linked solely with the influence of mantle plumes. On the basis of petrogeochemical data on magmatic formations from local geological sections in the southern part of the Karelian Craton, the author in...

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Bibliographic Details
Published in:Proceedings of the Karelian Research Centre of the Russian Academy of Sciences
Main Authors: Наталья Ивановна Кондрашова, Natalia Kondrashova
Format: Article in Journal/Newspaper
Language:English
Russian
Published: Karelian Research Centre of the Russian Academy of Sciences 2018
Subjects:
внутриплитный магматизм
плюм
палеопротерозой
литосфера
астеносфера
Science
Q
karelian
Online Access:https://doi.org/10.17076/geo735
https://doaj.org/article/6131611181cc48c1b67f86e69243d825
Description
Summary:There is an opinion that Paleoproterozoic magmatism in the Karelian craton of the Baltic Shield is linked solely with the influence of mantle plumes. On the basis of petrogeochemical data on magmatic formations from local geological sections in the southern part of the Karelian Craton, the author infers a similar mantle source for magmatic rocks of all Paleoproterozoic age levels, from Sumian to Ludikovian. The melting that occurred in the lithospheric mantle rules out the plume source for the considered Paleoproterozoic magmatic formations.

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