Evolution of the Gállojávri ultramafic intrusion from U-Pb zircon ages and Rb-Sr, Sm-Nd and Lu-Hf isotope systematics

• Published in: Precambrian Research
• Main Authors: Orvik, Alf Andre, Slagstad, Trond, Sørensen, Bjørn Eske, Millar, Ian, Hansen, Harald
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2022
• Subjects: Karasjok; Norway; Fennoscandian; Northern Norway; Lapland
• Online Access: https://hdl.handle.net/10037/25999; https://doi.org/10.1016/j.precamres.2022.106813

The Karasjok–Central Lapland Greenstone Belt is one of the largest Palaeoproterozoic greenstone belts in the Fennoscandian Shield and includes multiple (ultra)mafic intrusions, some with notable ore reserves, formed during three episodes at 2.44, 2.22 and 2.05 Ga. This study presents new mineralogic...