2020•Doklady Earth SciencesRequires access

Mafic Intrusions of ca. 2400 Ма Large Igneous Province in the Belomorian Mobile Belt: First Baddeleyite U–Pb ID-TIMS Data

A. V. Stepanova, Е. Б. Сальникова, А. В. Самсонов, С. В. Егорова, В. С. Степанов

Abstract

Abstract U–Pb ID-TIMS dating of igneous baddeleyite from metamorphosed coronitic gabbronorites in the сentral part of the Belomorian mobile belt, Fennoscandian shield was performed for the first time. The obtained age of 2404 ± 11 Ma indicates that studied gabbronorites belong to the ca. 2400 Ma large igneous province and thereby allows to extend its area on the Fennoscandian Shield. A short duration of large mafic igneous events in the Paleoproterozoic.

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Key concepts: Baddeleyite, Mafic, Igneous rock, Geology, Geochemistry, Shield, Large igneous province, Petrology