The TTG-Amphibolite Terrains of Arctic Fennoscandia : Infinite Networks of Amphibolite Metatexite-Diatexite Transitions

• Published in: Frontiers in Earth Science
• Main Author: Halla, Jaana
• Other Authors: University Management, Natural Sciences Unit, Finnish Museum of Natural History
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media 2020
• Subjects: Archean; TTG; amphibolite; metatexite; diatexite; CONTINENTAL-CRUST; EVOLUTION; CONSTRAINTS; GENERATION; GRANITOIDS; MIGMATITES; TECTONICS; ROCKS; FIELD; 1171 Geosciences; Arctic; Inari; Norway; Fennoscandia; Northern Finland; Northern Norway; Troms
• Online Access: http://hdl.handle.net/10138/318181

The Earth's early basaltic crust converted episodically into felsic TTG (tonalite-trondhjemite-granodiorite) crust by unknown tectonic processes. To contribute to the debate on the possible tectonic settings of TTGs, this article illustrates and explains migmatite structures of Meso- to Neoarch...