M. Sc. Jakob Rauscher
Function and Responsibilities:
Doctoral researcher of the sections 3.1 Inorganic and Isotope Geochemistry and 3.6 Chemistry and Physics of Earth Materials
Member of the doctoral representatives at GFZ
Research Interests:The magmatic-hydrothermal transition is still a critical gap in the understanding of granite-related ore deposits. To fill this gap this DOME-project (SPP-2238) focuses on the interaction processes between granitic melt and fluid. Boron is thought to be one of the most efficient tools to quantify processes of fluid-melt-interaction and is used in recent projects for similar objectives in basaltic and rhyolitic melts. The boron isotope fractionation between granitic melts and the fluids derived from them is supposed to explain the influence of external fluids and detect the isotope shift caused by fluid exsolution. Our experimental project is aimed to constrain melt-fluid B-isotope fractionation and combine these data with the characterization of the B-environment in melts by the use of various spectroscopic methods and with modelling. Tourmaline is present in different ore-deposit types (Figure 1). Based on our experimental data, the B-isotopic composition of tourmaline derived from magmatic-hydrothermal interactions will help for better constrain the ore-forming processes in these environments.
2020 - now: Doctoral researcher at GFZ Potsdam
Topic: Experimental determination of boron isotope fractionation between silicate melts and aqueous fluids - with application to understanding magmatic-hydrothermal ore genesis
2016 - 2018: Student lab assistant, ICP-MS lab of the department of Geochemistry, University of Göttingen2012 - 2014: Research assistand, department of Mineralogy, University of Heidelberg
2015 - 2019: M.Sc. Geosciences, focus Geochemistry, University of Göttingen
Thesis: "Isotope-geochemical characterization of primary melts of the Tertiary Rum Intrusion (NW Scotland)"
2011 - 2014: B.Sc. Geosciences, focus Geology, University of Heidelberg
Thesis: "Non-destructive characterization of ion-induced defects in calcite using Raman spectroscopy"
Research Boards and Committees:
2021 - today: Member of the European Association of Geochemistry