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江苏省为我国东部沿海省份之一,位于淮河、长江下游、其沿海地区是指纵串南通市、盐城市和连云港市的(南)通—(赣)榆运河以东地区,面积约二万平方公里,海岸线长;北起苏鲁交界的锈针河口,南至长江口共一千余公里。海岸类型除连云港云台山一带为基岩侵蚀岸外,其余均为泥沙质堆积海岸,沿海平原地势低平,地面标高2—5米。组成物质:北部为黄淮堆积物,岩性以亚砂土、亚粘土为主,夹薄层粉砂。南部为长江三角洲堆积,岩性以粉砂、亚砂土为主,夹淤泥质亚粘土。中部为过渡相堆积,岩性为亚粘土。全新统厚度20—30米,成陆年代一
Jiangsu Province, one of the eastern coastal provinces in China, is located in the lower reaches of the Huaihe River and the Yangtze River. Its coastal areas refer to the eastern part of the (South) Tong- (Gan) Yu Canal in Nantong, Yancheng and Lianyungang, covering an area of about 20,000 Square kilometers, long coastline; North from the junction of the rust needle needle estuary, south to the mouth of a total of more than 1000 km. In addition to coastal types of Lianyungang Yuntaishan erosion of rock basement outside the bedrock, the rest are silt accumulation coast, the coastal plain low level, the ground elevation of 2-5 meters. Composition of material: the north of the Huanghuai deposits, lithology to sub-sand, mainly sub-clay, folder thin silt. South of the Yangtze River delta accumulation, lithology to silt, sandy soil, muddy loam folder clayey silt. The middle of the transitional phase accumulation, lithology is a clay. Holocene thickness of 20-30 meters, into a land era