Dr Isaac J Onyett

My research delves into the early stages of the solar system, particularly the formation of terrestrial planets, asteroids, and their building blocks. By examining the mass-independent isotope composition of solar system materials, I aim to uncover the origins of these celestial bodies and understand the transport and processing of material during the initial few million years of the protoplanetary disk's evolution. I have a keen interest in silicon isotopes and have dedicated recent years to developing methodologies that utilize them as mass-independent tracers.

Currently, my work centers on studying the mass-independent isotopic composition of silicon and chromium in chondrules—early-formed silicate melt spherules. This research aims to trace their origins within the disk and is complemented by short-lived radiometric dating (Al-Mg) to provide additional temporal insights.