Quantitative understanding of thermal evolution of magma chambers

这项研究的目的是了解岩浆房的热演化和化学演化机制。结果表明：（1）气泡的数量可以影响岩浆的化学分异趋势。（2）在玄武岩浆房中，当岩浆是含水的且岩浆房位于深部时，边界层分馏作用相对于均匀分馏作用是重要的。3）冰岛Askja火山玄武岩浆演化为安山岩的时间约为3000年。

This study has been carried out to understand the mechanism of the thermal and chemical evolution of magma chambers. Thus, the following conclusions were reached : 1)Chemical differentiation trend of magmas can be affected by the amounts of bubbles. 2)In basaltic magma chamber, boundary layer fractionation can be important relative to homogeneous fractionation when magmas are hydrous and the magma chambers are located at depth. 3)It took ~3000 yr for basaltic magma to evolve to andesite at Askja volcano, Iceland.