布朗意──蒙索盆地煤相研究
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摘要:
本文以布郎意－蒙索盆地厚度达４０ｍ的第一煤层为单元，根据煤样光片光泽、色彩及组构划分出八类煤相。用有机岩石学方法及热解分析法详细研究了这些煤相。结果表明该煤层主要为微异地－异地沉积，生源输入以木本植物为主；煤层内部也存在类似煤系地层那样的旋回沉积，其原因推测为泥炭非均一性引起差异压缩；煤相的变化主要由水动力条件及水平面高低引起．这种变化明显影响了显微组合的物理一化学性质，如镜质体反射率、孢子体荧光及煤相的氢指数。该研究还指出了各种沉积环境标志物的可靠性。关键词
Abstract:本文以布郎意－蒙索盆地厚度达４０ｍ的第一煤层为单元，根据煤样光片光泽、色彩及组构划分出八类煤相。用有机岩石学方法及热解分析法详细研究了这些煤相。结果表明该煤层主要为微异地－异地沉积，生源输入以木本植物为主；煤层内部也存在类似煤系地层那样的旋回沉积，其原因推测为泥炭非均一性引起差异压缩；煤相的变化主要由水动力条件及水平面高低引起．这种变化明显影响了显微组合的物理一化学性质，如镜质体反射率、孢子体荧光及煤相的氢指数。该研究还指出了各种沉积环境标志物的可靠性。关键词
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