沙洲并陆与长江口北部岸线的演变

Shoal's merging into land and evolution of north coastline of Changjiang Estuary

全新世以来 ,长江口北岸南通 扬州南部经历了“浅海—陆地”的成陆过程 .4ka ,B .P .前 ,本区为一漏斗形的浅水海湾 ,河口拦门沙极为发育 .4ka ,B .P .以来 ,沙洲并岸 ,河口陆地淤长 。

North Changjiang Estuary and south Nantong Yangzhou has experienced the process from shallow sea to land since Holocene. 4ka,B.P.ago, the district had been reduced into a huge bay as a funnel, and the estuarine sand bars developed very well in the Estuary.Since 4ka,B.P.,the sand bars have merged into the land which has expanded gradually in the Estuary,and the coastline of north Changjiang Estuary moved southeastwards.