第四系划分为四个“统”，十“个组”。
Quaternary system has been divided into four "series", including ten "f."..
为研究该区湖泊演化、气候变化、古地理变迁及第四系划分等提供了新资料。
The new data have been provided for the lake evolution, the climate change, the paleogeographic changes and the divide Quaternary period.
通过采用适合城市的多种第四系研究方法及手段，确定了青岛市市区第四系层序的划分；
The division of Quaternary stratigraphic sequence in Qingdao City was determined by using different methods suitable for Quaternary system study.
通过采用适合城市的多种第四系研究方法及手段，确定了青岛市市区第四系层序的划分；
The division of Quaternary stratigraphic sequence in Qingdao City was determined by using different methods suitable for Quaternary system study.
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