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在1.0~5.0GPa,温度约1350°C条件下测量了福建塔庄粗面玄武岩的纵波速度。结果发现当p<3.0GPa时,随着温度升高,粗面玄武岩纵波速度逐渐降低。而在p=3.0GPa,t为529~816°C;p=4.0GPa,t为537~807°C;p=5.0GPa,t为607~802°C时,粗面玄武岩纵波速度随温度升高反而升高,显示出异常变化。通过对p为1.0~5.0GPa条件下的最终实验产物及p=4.0GPa,t为587,724,887°C温度点上的实验产物观察表明,实验产物中形成的一种隐晶—微晶集合体是造成粗面玄武岩纵波速度异常的主要原因,而粗面玄武岩向榴辉岩的转变可能是弹性波速度随温度升高而升高的次要原因。
The P-wave velocities of the Taqunshan basalts in Fujian Province were measured at 1.0 ~ 5.0GPa and temperature of about 1350 ° C. The results show that when p <3.0GPa, with the temperature increases, the longitudinal wave velocity of the basalts gradually decreases. P = 3.0GPa, t is 529 ~ 816 ° C; p = 4.0GPa, t is 537 ~ 807 ° C; p = 5.0GPa, t is 607 ~ 802 ° C, the longitudinal wave velocity But with the temperature increased but showed abnormal changes. The experimental results of p = 1.0 ~ 5.0GPa under the conditions of the final experimental products and p = 4.0GPa, t 587,724,887 ° C temperature point of the experimental results show that the experimental product formed a hidden Crystalline-microcrystalline aggregates are the main reason for the anomalous P-wave velocity anomalies in rough basalts, whereas the transformation from rough basalts to eclogites may be the secondary reason that elastic wave velocity increases with temperature.