The distribution of the most-subsided areas, lacustrineterrace and Quanternary fold is characterised by the diagonal symmetry.
第四纪最大沉降中心、湖积台地及第四纪褶皱分布呈对角对称。
2
There are some softer accumulation horizon in the ox-bow lake and season river on the huge mucky soil of alluvial and lacustrine deposits in accumulation terrace around Dongting lake.
在洞庭湖漫滩阶地的冲湖积淤泥质软土上，分布着一些次级牛轭湖和季节性洪道成因的极软淤积物。
3
Multi-level lakeshore piled terraces or base terrace, lake sediments and high level paleo-lacustrine sediments distribute in the Lake Zhaling and Lake Eling valley basin.