Elements such as carbon, sulfur, and water, have key roles throughout the planet formation process and during subsequent planetary evolution.
They are major reservoirs of mass in protoplanetary disks, affecting gas and grain dynamics; they have active roles in planetary differentiation, forming major components of planetary cores, affecting the budget of highly siderophile elements, and enabling the formation of continental crust; and they are bioessential, being necessary components of all known life, and lying at the heart of atmosphere/hydrosphere cycles that sustain a habitable planet.
In this talk we combine astrophysical observations of stellar accretion processes with geological observations of volcanic eruption products to trace sulfur and carbon from planet formation into the deep Earth.