矿物形成时捕获的包裹体,一般说来是均一的流体,在后来的地质作用下,由于温度和压力发生变化(一般是下降),以致其包裹体中物质的相态也要发生变化,可能有矿物晶出(子矿物),液体体积收缩出现气泡……显然,这时包裹体内物质由一相变为二相(如液相、气相)、三相(固相、液相、气相),以致多相。 The inclusions captured during mineral formation are generally homogeneous fluids. In later geological processes, the phase state of the material in the inclusions also changes due to changes in temperature and pressure (usually downwards) There is a mineral crystal out (sub-mineral), the volume of liquid shrink bubbles ... ... Obviously, when the material in the package from a phase into two phases (such as liquid, gas phase), three phase (solid phase, liquid phase, gas phase) So multiphase.