Hydrothermal mineralisation, in particular gold in Scotland, Ghana, Mauritania, Tanzania, Ethiopia and the Solomon Islands.
Te and Se geochemistry and mineral deposits.
Stable and radiogenic isotopes in fluid-rock interaction and hydrothermal mineralisation.
Mineral carbonation for CO2 sequestration.
Sediments as paleoenvironmental indicators - trace element and isotope proxies, including selenium isotopes - in the Cariaco Basin and Neoproterozoic sequences in Ethiopia.