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Aaron Röhler


Petrologie der Ozeankruste


+49 421 218-65136



GEO, 5160

Aaron Röhler

PhD Project

The focus of my PhD project is on the study of fluid-rock reactions in active volcanoes. Hydrothermal activities inside active volcanoes can influence not only the stability of the volcanic edifice itself, but also the eruptive behavior of the volcano, and thus have a major impact on various causes of geohazards in volcanically active areas. To investigate the interplay between magmatic and hydrothermal processes, my study focuses on Telica, a persistently unstable stratovolcano in the Central American volcanic arc. Heat and gases generated by the rising magma interact with meteoric water to drive a long-lasting hydrothermal system that can destabilize the volcanic edifice and possibly even trigger eruptions.

I will develop a structural and petrological model of the Telica magmatic and hydrothermal system. The main focus of my research will be to investigate and quantify the element fluxes and fluid-rock reactions caused by the surface hydrothermal activity in the volcanic edifice, as well as their effects on the eruptive behavior of the volcano.

Curriculum Vitae

since 11/2022

PhD Student at MARUM, University of Bremen

10/2018 - 09/2022

M.Sc. Marine Geoscience, University of Bremen

Thesis: Petrological Evolution of Vesteris Seamount - Thermobarometric and Geochemical Investigation of an Alkaline Intraplate Volcano

10/2013 - 09/2018

B.Sc. Geoscience, University of Bremen

Thesis: Alternative Methode zur Bestimmung der Sauerstofffugazität über das Olivin-Schmelze Equilibrium an Tephriten der 2014-15 Eruption auf Fogo

Research Cruises

03/2025 - 04/2025 SO311 Drill Brothers Kermadec Arc, South Pacific
08/2024 - 09/2024 MSM131 Joetul field Knipovic Ridge, North Atlantic
07/2022 - 08/2022 M183 RIFLOR-1 Reykjanes Ridge, North Atlantic
08/2019 - 09/2019 MSM86 VESTERIS Vesteris Seamount, Greenland Basin
02/2019 - 04/2019 PS118 LARSEN C Weddel Sea and Powell Basin, Antarctica
04/2018 - 05/2018 MSM73 RACE II North Atlantic and Labrador Sea
06/2012 M87-3b CATNEC Baltic Sea