Tahiry Rajaonarison

Tahiry Rajaonarison

I am a Postdoctoral Associate at New Mexico Tech. Ph.D. in Geophysics (2020)

Posts by Collection

cv

model_gallery

publications

Lithospheric Structure of the Malawi Rift: Implications for Magma-Poor Rifting Processes

Published in Tectonics, 2019

Lithospheric Structure of the Malawi Rift: Implications for Magma-Poor Rifting Processes

Recommended citation: Njinju, E. A., Atekwana, E. A., Stamps, D. S., Abdelsalam, M. G., Atekwana, E. A., Mickus, K. L., **Rajaonarison, T. A.**, Nyalugwe, V. N. (2019). Lithospheric structure of the Malawi Rift: Implications for magma‐poor rifting processes. Tectonics, 38(11), 3835-3853. doi: https://doi.org/10.1029/2019TC005549

Numerical Modeling of Mantle Flow Beneath Madagascar to Constrain Upper Mantle Rheology Beneath Continental Regions

Published in Journal of Geophysical Research, Solid Earth, 2019

This paper is about elucidating the source mechanism of the observed complex azimuthal seismic anisotropy beneath Madagascar. This study yields better understanding of mantle flow beneath Madagascar and the mantle rheology beneath continetal regions.

Recommended citation: **Rajaonarison, T. A.**, Stamps, D. S., Fishwick, S., Brune, S., Glerum, A., & Hu, J. (2020). Numerical modeling of mantle flow beneath Madagascar to constrain upper mantle rheology beneath continental regions. Journal of Geophysical Research: Solid Earth, 125(2), e2019JB018560. https://doi.org/10.1029/2019JB018560

Role of Lithospheric Buoyancy Forces in Driving Deformation in East Africa From 3D Geodynamic Modeling

Published in Geophysical Research Letters, 2021

This paper is about using 3D thermo-mechanical modeling to elucidate what is the main mechanism that causes East Africa to break-up.

Recommended citation: **T.A. Rajaonarison**, D.S. Stamps, J. Naliboff (2021), Role of Lithospheric Buoyancy Forces in Driving Deformation in East Africa, Geophysical Research Letters. doi: https://doi.org/10.1029/2020GL090483

Redefining East African Rift System kinematics

Published in Geology, 2021

This paper is about using 3D thermo-mechanical modeling to elucidate what is the main mechanism that causes East Africa to break-up.

Recommended citation: Stamps, D. S., Kreemer, C., Fernandes, R., **Rajaonarison, T. A.**, & Rambolamanana, G. (2021). Redefining east African rift system kinematics. Geology, 49(2), 150-155. doi: https://doi.org/10.1130/G47985.1

Localization of Large Intraplate Earthquakes along Faulted Deep-Reaching Density-Contrast Boundaries: Insights from the 2017 Mw6.5 Botswana Earthquake

Published in Journal of African Earth Sciences, 2023

This paper is about the how crustal-scale density contrast boundaries concentrate strain and localize intraplate earthquakes.

Recommended citation: Chisenga, C., Kolawole, F., Rajaonarison, T., Atekwana, E. A., Yan, J., & Shemang, E. M. (2023). Localization of large intraplate earthquakes along faulted density-contrast boundaries: Insights from the 2017 Mw6. 5 Botswana earthquake. Journal of African Earth Sciences, 197, 104752. doi: https://doi.org/10.1016/j.jafrearsci.2022.104752

research

Research

I am a geodynamicist who use computational modeling and geodetic observation to help us understand how the Earth’s lithosphere/crust deform.

talks

teaching

Resources

Undergraduate course, Virginia Tech, Department of Geosciences, 2019