Chemical geodynamics is a term coined nearly forty years ago to highlight the
important link between Earth's geochemical evolution and plate tectonics &
mantle convection. Significant progress in our understanding of this connection
has taken place since then through advances in the analytical precision of
geochemical measurements, dramatically improved geophysical imaging techniques,
application of novel isotope systems, and great advances in computational
power. Thee latter especially has improved geodynamical models and data
interpretation techniques. We provide a review of these advances and their
impact on chemical geodynamics, or perhaps, dynamical geochemistry. To focus
this review we will address primarily the role of whole mantle convection and
oceanic crust formation and recycling together with an update on our
understanding of noble gas systematics