On the origin of Archaean TTGs by migmatization of mantle plume-related metabasalts : Insights from the Lake Inari terrain, Arctic Fennoscandia

• Main Authors: Halla, Jaana, Joshi, Kumar Batuk, Luttinen, Arto, Heilimo, Esa, Kurhila, Matti
• Other Authors: Finnish Museum of Natural History
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier B.V. 2024
• Subjects: Archaean; Diatexite; Metabasalt; Metatexite; Partial melting; Tonalite-trondhjemite-granodiorite; Geosciences; Arctic; Inari; Fennoscandia; Northern Finland; Lapland
• Online Access: http://hdl.handle.net/10138/577485

The conversion of basaltic crust into a thick, buoyant felsic crust of tonalite-trondhjemite-granodiorite (TTG) composition has been a fundamental process in the Earth's evolution during the Archaean Eon (4.03–2.50 Ga). The proposition that TTGs have formed as a result of the partial melting of...