Long-Lived Mantle Plume and Polyphase Evolution of Palaeoproterozoic PGE Intrusions in the Fennoscandian Shield

• Published in: Minerals
• Main Authors: Tamara Bayanova, Aleksey Korchagin, Alexander Mitrofanov, Pavel Serov, Nadezhda Ekimova, Elena Nitkina, Igor Kamensky, Dmitry Elizarov, Milosh Huber
• Format: Text
• Language: English
• Published: Multidisciplinary Digital Publishing Institute 2019
• Subjects: Plume; LIP; PGE; Palaeoproterozoic; mafic intrusion; U-Pb; isotopes; Pechenga; Imandra; Koitelainen; Fennoscandian; karelia*
• Online Access: https://doi.org/10.3390/min9010059

The NE Fennoscandian Shield comprises the Northern Belt in Finland and the Southern Belt in Karelia. They host mafic-ultramafic layered Cu-Ni-Cr and Pt-Pd-bearing intrusions. Precise U-Pb and Sm-Nd analyses indicate the 130-Ma evolution of these intrusions, with major events at 2.53, 2.50, 2.45, and...