Fracturing and hydrothermal alteration during emplacement of the Fen carbonatite complex
The Fen complex in Telemark (ca 570 Ma) has for a long time been subject to considerable interest due to its high content of thorium, rare earth elements, and other mineral resources. Emplacement of the Fen carbonatite complex was associated with massive alteration of the host Precambrian basement during a process commonly referred to as fenitization.
Fenitization involves brittle deformation and associated infiltration of a variety of highly reactive fluids.
This thesis will focus on the chemical and mechanical interaction between this rapidly emplaced intrusion and the surrounding gneisses.