Master of Science Hanne-Kristin Paulsen vil torsdag 27. februar klokken 12.15 offentlig forsvare sin avhandling for graden ph.d. i realfag.
Tittel på avhandlingen:
«Structurally controlled hydrothermal mineralization: A case study from Vanna island, northern Norway»
Vanna is an island located just northeast of Tromsø, and the rocks found on this island has recorded an unique geological history that spans almost 3 billion years. Multiple phases of shortening and extension of the earths crust resulted in several generations of faults and fractures in these low-grade basement rocks. This PhD project investigates the geological mechanisms that lead to the formation of small bright green emeralds, and much later copper-zinc mineralization. Although the emerald and copper-zinc occurrences differ in age and chemistry, both these mineralization events were formed by hot and salty (hydrothermal) fluids that used the faults and fracture systems as pathways through the otherwise impermeable crust. These hot fluids have picked up, transported and deposited the components that ultimately lead to enrichment of these valuable metals and minerals on Vanna.
- Førsteamanuensis Sabina Strmic Palinkas, Institutt for geovitenskap, UiT (hovedveileder)
- Professor Steffen Bergh, Institutt for geovitenskap, UiT
- Professor Rune Berg-Edland Larsen, Department of Geoscience and Petroleum, Norwegian University of Science and Technology, Norge (1. Opponent)
- Associate Professor Tobias Bauer, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Sweden (2. Opponent)
- Associate Professor II Giada Iacono Marziano, Department of Geosciences, UiT (internal member and leader of the committee)
Leder av disputasen: Professor Arne Smalås, Dekan ved Fakultet for naturvitenskap og teknologi, UiT
27. februar klokken 10.15 samme sted. Tittel på prøveforelesningen er:
«The magmatic-hydrothermal transition and the solubility, transport and deposition of ore-forming elements»