Complex sentence: She then went on to complete a PhD in 2002, supervised by Sally A Gibson at the University of Cambridge (Clare College), with a thesis "Magmatism of the Vitim Volcanic Field, Baikal Rift Zone, Siberia".
Split into simpler sentences: She then went on to complete a PhD, supervised by Dr Sally A Gibson at the University of Cambridge (Clare College). Her thesis title was: "Magmatism of the Vitim Volcanic Field, Baikal Rift Zone, Siberia".