The Upper Permian System Longtan coal measure in the Changguang coal deposit is a complete sedimentary cycle, consisting of a regressive and a transgressive series.
长广煤田上二迭统龙潭含煤岩系是由海退系列和海进系列组成的一个完整沉积旋回。
2
While applying the method to the time series data of sedimentary rock in Talimu basin, the prediction and classification of layer in petroleum well have got solution.
在塔里木盆地沉积岩时间序列化学数据的应用实例中，解决了石油井下地层预测和归类问题。
3
This article distinguishes two different sedimentary environments of Fuyu and Yang-dachengzi oil-bearing series in Sanzhao depression with geological analytical method of trend surface.