Nonmarine sequence stratigraphy is used to analyze Jurassic depositional sequences in Tu-ha basin, and three sequences and one supersequence are divided in this paper.

本文应用陆相层序层学法吐哈侏罗系沉积层序进行了综分析，划分出三套层序和一套超层序。

These basins were generally filled with upward fining and deepening sedimentary sequence that comprises nonmarine to marine, shallow marine to deep marine depositional systems.

内堆积了从陆相到海相，从浅水到深水的各种沈积体系，组成向上变细和变深的充填序列。