准噶尔盆地南缘柴窝堡地区地层综合划分与对比

Stratigraphic Division and Correlation in Chaiwopu Region of the Southern Margin of Junggar Basin

依据大量的工区实际资料,从煤层发育特征、岩性标志、孢粉学特征等方面入手,深入研究了准噶尔盆地南缘新近纪-二叠纪地层中记录的地质事件,建立了准噶尔盆地南缘柴窝堡地区新近纪-二叠纪地层划分对比的标志。柴窝堡地区新近纪-二叠纪地层中的生物事件信息和旋回沉积层的形成均与当时的古气候变化密切相关,古气候的变化影响到沉积环境的改变,从而导致了沉积岩颜色的变化、孢粉组合的差异,这些大范围变化的相似性,形成了地层划分与对比的良好标志。

Based on great number of actual data in the work area,from the aspects of characteristics of coal-seam development,lithologic markers,palaontological assemblage characteristics,etc,the geologic event records of Neogene-Permian strata in the southern margin of Junggar Basin were studied deeply. The stratigraphic classification and correlation markers of Neogene-Permian of Chaiwopu Region were established. The geologic event data and the formation of sedimentary cycle are closely related with the ancient climate changes in the Chaiwopu Region,the ancient climate changes affect the changes of sedimentary environment,by which the color changes of sedimentary rocks and lineament of difference of animal-plant combination are induced,for the similarity of these big range of changes,a good marker of stratigraphic classification and correlation is created.