• Composition and evolution of the continental crust and its implications for crust formation and recycling processes.


  • Li isotopic studies of surface processes, continental crust formation and evolution, crust-mantle recycling processes and meteorites


  • Lithospheric dynamics in Tanzania : why did two segments of Archean lithosphere (Tanzanian craton and Mozambique Belt) respond so differently to contractional orogeny?


  • Lithospheric dynamics in the North China craton: what were the main processes that removed the Archean mantle root from beneath the eastern block of the craton?