Fiene Matthies
Is Doctoral Researcher in the PRE-COLLAPSE project starting in December 2022.
With her PhD project Fiene wants to understand whether and how slow sliding of volcanic flanks affects edifice stability both geometrically and mechanically through weakening and the formation of shear zones.
She will carry out direct shear tests with typical flank sliding rates (5-10 cm/year) on samples of different volcanoes and later upscale this behaviour to true volcano scales using numerical models, in particular the finite-element method. Subsequently, Fiene will adapt the numerical models to each case study of the PRE-COLLAPSE project.
The geomechanical experiments will be done in cooperation with Dr. Matt Ikari at MARUM, Center for Marine Environmental Sciences, Bremen.
During her bachelor and masters studies in Geosciences at the Leibniz University Hannover, Fiene was especially fascinated by numerical modelling using the finite-element method (FEM). She used the FEM in two student projects, looking at how pore fluid pressure changes and viscoelastic relaxation interact after a normal fault earthquake and evaluating the force-balance at the Makran-Zagros subduction-collision transition. Her master thesis that she finished in 2022, evaluates how the stress state of the lithosphere changes due to effects of glaciation and glacial erosion using the FEM.
Research Interests
Numerical modelling
Geohazards
Rock mechanics
State and evolution of the lithospheric stress field
Geodynamics
Tectonic geomorphology
Contact:
RD4 Dynamics of the Ocean Floor - Marine Geodynamics
phone: 0049-431 600-2328
email: fmatthies@geomar.de
room: 8C-202
GEOMAR Helmholtz Centre for Ocean Research Kiel
Wischhofstr. 1-3
24148 Kiel
Germany
CV
Fiene Matthies
Education
Since 12/2022
Doctoral Researcher at GEOMAR Helmholtz Centre for Ocean Research Kiel
10/2020 – 11/2022
M.Sc. in Geoscience at Leibniz Universität Hannover
Thesis title: Impact of Glaciation and Glacial Erosion on the Stress Field in Forearcs – An Analysis Based on Force-Balance Considerations and Finite-Element Models
09/2019 – 12/2019
Semester abroad through ISEP (International Student Exchange Program) at Brock University, St. Catharines, Canada
10/2017 – 09/2020
B.Sc. in Geoscience at Leibniz Universität Hannover
Thesis title: Interpretation of GPS data from the Chi-Chi 1999 Taiwan Earthquake
Student work and Internships
10/2021-11/2022
Student assistant at the Institute of Geology, Leibniz Universität Hannover
Main tasks: Website management, administration of the Windows server and individual computers (mostly Windows), acquisition and installation of hardware and software
08/2020 – 09/2021
Student trainee at Deutsche Bahn AG – Kundenteam Altlasten-/Entsorgungsmanagement Region Nord
02/2020 – 03/2020
Internship at Bundesanstalt für Geowissenschaften und Rohstoffe (BGR); Sub-Department 4.3 Federal Seismological Survey, Nuclear Test Ban
06/2018 – 06/2020
Student assistant at the Institute of Soil Science, Leibniz Universität Hannover
Main tasks: Preparing samples, measurement of samples, displaying data
Research Cruises
08/2023
RV SONNE SO299/2: REET – Reconstructing volcanic eruptions and tsunamis of Krakatau volcano
Workshops
03/2023
2 nd Edition of the International Field Course on Physical Volcanology, Tenerife (Canary Islands), IAVCEI Commission on Volcano Geology
Academic Services
Since 01/2022
Member of the jDGGV (Young German Geological Society)
Awards
09/2022
Young Scientist Book Award within the Young Scientist Session at GeoMin Köln 2022; 2nd Place for talk „Impact of Glaciation and Glacial Erosion on the Stress Field in Forearcs“
Publications
Matthies, F., Dielforder, A., Hampel, A., 2024. Force-balance modeling of the impact of glacial erosion, trench sedimentation, megathrust weakening and glacial loading on the stress state of the crust at active continental margins. Tectonophysics 871, 230180.
Matthies, F., Dielforder, A., Hampel, A., 2022. Impact of Glaciation and Glacial Erosion on the Stress Field in Forearcs [Talk], GeoMin Köln 2022. DOI: 10.48380/4990-3k04.
Matthies, F., Urlaub, M., Ikari, M., 2023. Insights Into the Edifice Stability of Anak-Krakatau (Sunda Strait, Indonesia) Before the Lateral Collapse in December 2018 from Direct Shear Experiments and Finite-Element Models [Talk], GeoBerlin 2023.
Matthies, F., Urlaub, M., Ikari, M., 2023. The Influence of the Volcano Geometry and the Rock Mechanical Properties on the Edifice Stability of Oceanic Volcanoes: A Case-Study of Anak Krakatau (Sunda Strait, Indonesia) [Talk], Oceanic Volcanism Workshop.