PhD Student

Research interests: Past Deoxygenation Events in the Mediterranean

Research
Past deoxygenation events provide long-term perspectives into the responses of ocean stressors to climate variability. The Mediterranean deep-sea settings have recorded past deoxygenation events linked to rapid climate changes as organic-rich deposits (sapropels or organic-rich-layers). I analyze the geochemical, mineralogical, and paleontological variations in these marine deoxygenation paleo-archives to study the evolution and complex interplay of redox conditions, marine productivity, and biogeochemical processes during periods of climate instability. This multiproxy approach involves assessing (i) variations in trace metal concentrations (Ba, Mo, U, Mn, V) and stable isotopes (δ13C, δ18O and δ138Ba of barite ), and (ii) dinoflagellates and ichnology analysis. Understanding marine responses to past climate changes will help to better forecast deoxygenation evolution in vulnerable regions.