ABSTRACT
Single phase solid inclusions contain only one phase, which may be amorphous or crystalline silicate, or magnetite and graphite. The apatite solid inclusions usually existed in zircon of granite, suggests that phosphate separate out earlier than that of zircon in the magma. Actually the homogenization temperatures of gas liquid inclusions can only represent the low limits of rock forming temperature. In order to get initial crystalling temperatures of magmatic rocks, one should determine the homogenization temperatures of melt inclusions in accessory minerals that crystallized from magma in the early period of intrusion. The homogenization temperature are mainly acquired from high temperature heating stage homogenization and quenching methods. The temperature at that time is just homogenization temperature. This method is objective, reliable, accurate, and can be used to understand the relation between the phase equilibrium of melt and temperature during the experiment.
