The GALAH sample will be useful for examining the dominant dynamical processes that occur during Galaxy development. Without radial mixing, the dispersed debris from open clusters detected by GALAH would be on near-circular orbits and confined to a fairly narrow annulus around the Galaxy, reflecting their early dynamical properties. Using GALAH, we can examine the radial extent of the chemically-tagged debris of disrupted clusters; we will then have a direct measurement of how important radial mixing, and other dynamical processes, has been to Milky Way evolution.

The large, homogeneously observed and analyzed GALAH stellar sample will help to separate the different nucleosynthetic processes that lie behind the chemical evolution of the Galaxy. By examining how the different elements relate to one another using principal component analysis (PCA), we can examine the structure of the different dominant nucleosynthetic processes. Furthermore, we can learn about the contributions of the various nucleosynthetic processes in each Galactic component, as a function of position, velocity, and orbital integrals.