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这个研究确定,压力小于总压,增加水对玄武岩固相线、角闪石稳定上限以及在控制水逸度和氧逸度(fH_2O, fO_2)的条件下对共存结晶相、液相、流体相成分的影响。这些实验证明了在fH_2O≈0.6 f~0H_2O (f~0H_2O为纯水逸度)的地质环境中对于玄武岩浆的一些可能分异模型的尝试。它们也证明了控制P_eH_2O(平衡水压)值小于P_T(总压)的可能性。
This study determined that the pressure is less than the total pressure, increasing the upper limit of stability for basalt solidus and amphibole and controlling the coexistence of crystalline phase, liquid phase, and fluid phase under controlled conditions of water fate and oxygen fugacity (fH2O, fO2) Effect of composition. These experiments proved that some possible differentiation models for basalt magma in geological environment with fH2O ~ 0.6 f ~ 0H2O (pure water f = 0H2O) are validated. They also demonstrate the possibility of controlling the P_eH_2O (equilibrium pressure) value to be less than P_T (total pressure).