煤变质古地温恢复方法探讨

On the Re■onstructing Method of Coal Metamorphic Palaeogeotherm

以重庆南桐煤田为例，采用煤岩学、X衍射分析等方法确定了煤变质的主要变质期、有效变质时间和相对受热条件，应用包裹体均一测温法、镜煤反射率古地温法、顺磁共振分析和牙形石色变分析等，求取煤变质古温度、古温度梯度和古地温的空间展布特征。

This paper adoptsa lot of methods as the coal petrology,X-raydiffracfion analysis,to make an approach to thereconstructing method of coal metamorphic pa-laeogeotherm in detail relatively.Furthermore,the author sahsalso determined the features ofthe palacotemperature distriduted in space dur-ing the coal metamorphic epoch by taking theNantong coalfield of Chongqing city as anexample.