The origin and evolution of LCT pegmatites in Helgeland, northern Norway: stable isotope evidence from tourmaline (δ11B) and garnet (δ18O, ∆’17O)

• Main Author: Schickhoff, Amelie
• Format: Master Thesis
• Language: English
• Published: UiT Norges arktiske universitet 2024
• Subjects: Rare-element pegmatite; Magmatic-hydrothermal transition; Fluid exsolution; Tourmaline; SIMS; Boron Isotopes; Oxygen isotopes; Triple oxygen; Lithium; Garnet; Granitic pegmatites; GEO-3900; Ågskardet; Helgeland; Norway; Ørnes; Nordland; Northern Norway
• Online Access: https://hdl.handle.net/10037/34085

The processes leading to formation of rare-element enriched granitic pegmatites are controversially debated amongst petrologists and economic geologists. Two contrasting genetic models discuss the necessity of a parental granitic pluton as the magma source versus an anatectic origin via partial melt...