抄録
We experimentally studied the equilibration mechanism of jadeite (Jd: NaAlSi2O6) and spodumene (Spd: LiAlSi2O6) at 700°C for 72 hours and 800°C for 48 hours at 2 GPa. Our obaservations indicate that the mineral replacement via dissolution-reprecipitation rather than a diffusive Na-Li exchange occurred. Moreover, even trace amount of water may work as a solvent and enhance rapid mineral replacement at subsolidus conditions.
