摘要
上海市陆域东部滨海平原区埋深三、五十米以上及西部湖沼平原区埋深二十多米以上分布有数层“硬土”,现在可以确定,均属于晚更新世晚期的陆相沉积。
A few stiff clay layer distribute depth (30~50)m in the shallow of eastern littoral plain and depth over 20m in the western lake basin bog plain of Shanghai municipality. Except the stiff clay on surface,they belong to sediment of later period of late Pleistocene,it may be determined now.
关键词
上海
硬土
沉积环境
时代划分
stiff clay,shallow,Shanghai municipality
