Photo of Lucie A Cassarino

Dr Lucie A Cassarino

BSc(Axi-MarseillesII), MA, PhD

  • BS8 1RJ


Research output per year

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Personal profile

Research interests

My research interests are modern marine biogeochemical cycles with a focus on the silicon cycles and the silicon isotopic fractionation. The investigation of the silicon cycle is of great importance due to its close link with the carbon cycle and thus climate changes. 

To do so, I use the silicon isotopes, which has been highlighted first as a proxy for phytoplankton productivity, to better understand the silica sources and sinks. Nevertheless, the big picture requires to look at smaller scale in order to better constrain the silicon isotopes as a proxy for our understanding of the marine system. My research particularly focuses on the silicon isotope fractionation origins during silicon biomineralisation (precipitation of silica) in diatoms and deep-sea sponges to better model past phytoplankton productivity and silicic acid concentration. Furthermore, I use the silicon isotopes to understand the marine sediment/pore waters interactions and nutrient fluxes at the seawater/sediment interface as a potential source of nutrient to the water column. Finally, I study water masses mixing impact on the surface phytoplankton bloom and their silicon isotopes signature. My research has a particular interest in the West Antarctic Peninsula environment but also relies on other field data and laboratory experiments. 

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Research Output

  • 5 Article (Academic Journal)
  • 1 Review article (Academic Journal)

Sediment efflux of silicon on the Greenland margin and implications for the marine silicon cycle

Ng, H. C., Cassarino, L. A., Pickering, R. A., Woodward, E. M. S., Hammond, S. & Hendry, K., 1 Jan 2020, In : Earth and Planetary Science Letters. 529, 13 p., 115877.

Research output: Contribution to journalArticle (Academic Journal)

  • Using Stable Isotopes to Disentangle Marine Sedimentary Signals in Reactive Silicon Pools

    Pickering, R., Cassarino, L. A., Hendry, K., Wang, X., Maiti, K. & Krause, J., 16 Aug 2020, In : Geophysical Research Letters. 47, 15, 11 p., e2020GL087877.

    Research output: Contribution to journalArticle (Academic Journal)

  • Silicon isotopic systematics of deep-sea sponge grounds in the North Atlantic

    Hendry, K. R., Cassarino, L., Bates, S. L., Culwick, T., Frost, M., Goodwin, C. & Howell, K. L., 15 Apr 2019, In : Quaternary Science Reviews. 210, p. 1-14 14 p.

    Research output: Contribution to journalReview article (Academic Journal)

    Open Access
  • 6 Citations (Scopus)
    61 Downloads (Pure)