This will causedifferent ascent velocities and then different diffusion rates of volatile in magma. The change of the pH2o in magmas during their ascenting triggers the changes of the stability of phlologopite,leucite and sanidine.

 
  • 从而引起岩浆在上升过程中所含挥发分发生散失的程度有差异,造成PH2o的变化,而这正是控制金云母、透长石及白榴石稳定性及变化的主要物理参数。
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