Roberta Guerra

Sedimentary Geochronology: Integration of radionuclides (Pb-210, Cs-137, C-14) and geochemical proxies into Bayesian age-depth models to reconstruct high-resolution chronologies of environmental changes.

Carbon Cycling and Marine Biogeochemistry: Study of carbon cycles with a focus on sources, transformation processes, and dynamic fluxes. The research employs mixing models based on geochemical tracers to characterize sources, analyzing ecosystem responses to natural forcing and anthropogenic pressures.

Contaminant Fate: Historical reconstruction of legacy and emerging contaminants to assess the impact of human activity within sedimentary archives.

Water Mass Dynamics and Polar Processes: Investigation of water mass dynamics in sensitive regions, with a specific focus on the Arctic. The research analyzes "Atlantification" (the progressive inflow of warm, saline Atlantic waters into the Arctic Basin) and its impact on glacial melting. Geochemical tracers, including long-lived radioisotopes, are used to reconstruct water mass residence times, track nutrient cycles, and map the impact of glacial inputs on Arctic polar ecosystems.

Marine Governance: Integration of geochemical evidence into climate adaptation strategies and international policy frameworks.