【摘要】 <正> 近年来,作者对一些不同类型岩浆岩(花岗岩、霞石正长岩、流纹岩、凝灰熔岩、玄武岩等)矿物中包裹体进行了研究,总结出鉴定熔融(固化)包裹体的特征,并利用南京大学仪器厂生产的LGHS-1型高温加热台对一些岩浆岩进行了成岩温度测定。加热台测温范围0—1450℃±,20℃加热腔体积为0.8立方厘米,温差20—50℃。利用岩石熔融包裹体均匀化温度,可以作为探讨岩浆岩矿物形成温度的一个手段。近十年来,国外在成岩温度测定方面进行了不少工作,对自然界各类岩石的温度进行了较系统的研究,从而丰富了我们对自然地质体形成及其演化规律内在联系的认识,并为深部地质研究提供了宝更多还原

【Abstract】 The thermometric investigation of melt ineluions in minerals is one of the effective methods for evaluating the temperature of rock-formation.In this work we take some main types of igneous rocks for determining their formation-temperature.On the basis of research results,the authors established some criteria such as: phase state,refractive index,extinction,morphology of gas phase and the phase change during heating etc.to characterize melt inclusions.The formation-temperatures of rocks were determined by homogenizing method or quenching method.The former has been used on the heating stage LGHS-1 made by ourselves- The heating duration ranges from 2 to 8 hours.The melt inclusions in minerals of the different rocks come to melt at 680-1100℃.The temperature of homo-genization is 980-1140℃ for acidic rocks (granite,adamellite),980-135℃ for volcanic rocks (quartz-keratophyre,lava,microclastic tuff lava),1040-1120℃for alkali rocks (nepheline syenite),and 1120-1450℃for basalts.更多还原