中高盐度NaCl-H_2O溶液包裹体3种存在形式(T_h＞T_m、T_h=T_m、T_h＜T_m)的形成机制及捕获时的物化条件研究

首次提出均一捕获的中高盐度NaCl-H_2O溶液包裹体出现的3种类型(T_h>T_m、T_h=T_m、T_h|△V_s|,即在NaCl饱和曲线上温度小于Tr点温度(|△_l|=|△V_s|时的温度)段捕获包裹体的T_h=T_m,T_h或T_m为其捕获时温度。当包裹体的|△_l|≤|△V_s|,即在NaCl饱和曲线上温度大于或等于Tr点温度段捕获的包裹体的T_hT_m,T_h是该类包裹体捕获的最低温度。在温度和密度均大于Tr点的等容线上捕获的包裹体的T_h

Formation mechanisms for three forms(T_h>T_m,T_h=T_m and T_h

It is proposed for the first time that the three forms(T_h>T_m,T_h=T_m and T_h|△V_s|,i.e.the inclusions trapped at the temperature less than the temperature range at the Tr point(which is the temperature at |△V_1|=|△V_s|)on the NaCl saturation curve,the inclusions have T_h=T_m,where T_h or T_m is the temperature during their entrapment.If |△V_i|≤|△V_s|,i.e.the inclusions trapped at the temperatures equivalent to or higher than the temperature range at the Tr point on the NaCl saturation curve,the inclusions have T_hT_m,where T_h is the lowest temperature during entrapment of this type of inclusion.When the inclusions trapped at the temperatures and densities less than those on the isochore at the Tr point,the inclusions have T_h