My research aims to understand the marine biogeochemistry of metals. By combining a range of techniques, ranging from mass spectrometric to genomic, my work examines: metal cycling in the modern ocean; processes that control the deposition and removal of metals from seawater; relating metal availability to phytoplankton physiology and how this modulates primary productivity; how metal availability may affect Earth's climate over geological timescales (and vice versa).
Recent projects include:
- Studying 'micronutrient' metal cycling in the modern ocean and interactions with marine primary producers
- Investigating patterns, processes, and mechanisms of metal isotope fractionation in biological systems
- Understanding environmental and physiological controls on trace metal incorporation into CaCO3
- Probing the fildelty of sedimentary archives to record seawater metal isotope chemistry