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Wilckens, Henriette

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Sediment dynamics along the Argentinian and Uruguayan continental margin

In my research I investigate how sedimentary and oceanographic processes shape the seafloor geomorphology along the Argentinean and Uruguayan continental margin. The Argentinean and Uruguayan continental margin is strongly affected by oceanic currents. The aim of my PhD project is to improve our understanding of sediment deposits formed by the action of bottom currents (contourites). This can improve for instance the reconstruction of paleoceanographic changes because contourites provide valuable archives for past ocean conditions.

My research approach combines the fields of marine geophysics, marine sedimentology and physical oceanography. This involves a combination of geophysical data sets (bathymetry, high resolution 2D seismic and parasound data), sediment cores, current measurements (vessel-mounted ADCP data), hydrographic data (CTD profiles) and numerical modelling. The aim is to better understand contourite development from the combined perspective of sedimentology and fluid dynamics.  

Pu­bli­ca­ti­ons

Wilckens, H., Schwenk, T., Lüdmann, T., Betzler, C., Zhang, W., Chen, J., Hernández-Molina, F.J., Lefebvre, A., Cattaneo, A., Spieß, V., Miramontes, E., 2023. Factors controlling the morphology and internal sediment architecture of moats and their associated contourite drifts. Sedimentology, https://doi.org/10.1111/sed.13093

Wilckens, H., Miramontes, E., Schwenk, T., Artana, C., Zhang, W., Piola, A.R., Baques, M., Provost, C., Hernández-Molina, F.J., Felgendreher, M., Spieß, V., Kasten, S. (2021). The erosive power of the Malvinas Current: Influence of bottom currents on morpho-sedimentary features along the northern Argentine margin (SW Atlantic Ocean).Marine Geology, 439, 106539, https://doi.org/10.1016/j.margeo.2021.106539.                                Preprint: https://eartharxiv.org/repository/view/2411/ 

Miramontes, E., Thiéblemont, A., Babonneau, N., Penven, P., Raisson, F., Droz, L., Jorry, S.J., Fierens, R., Counts, J., Wilckens, H., Cattaneo, A., Jouet, G. (2021). Contourite and mixed turbidite-contourite systems in the Mozambique Channel (SW Indian Ocean): Link between geometry, sediment characteristics and modelled bottom currents. Marine Geology, 437, 106502, https://doi.org/10.1016/j.margeo.2021.106502,download.