Shanxi Formation is a set of paralic continental deposit,of which,fluvial,swamp and lacustrine facies alternatively presented regularly.

山西组为一套近海型的陆相沉,其相、沼泽相及湖泊相有规律地交替出现。

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

在盆地内堆了从陆相到海相，从浅水到深水的各种沈体系，组变细和变深的充填序列。

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.

本文应用陆相层序地层学方法对吐哈盆地侏罗系沉层序进行了综合分析，划分出三套层序和一套超层序。