各种类型的沉积物床面形态及层理构造大量保存在沉积岩中,成为恢复古沉积环境和古地理的重要标志之一。1981年,作者在山东白沙口海岸,对海岸带不同地貌条件下的床面形态系列及层理构造进行了观测,并对其形成过程进行了探讨。白沙口位于山东半岛南岸,五垒岛湾的西南隅(图1).面对浩瀚的黄海,为沙坝 Various types of sediment bed shape and bedding structure deposited in a large number of sedimentary rocks, to restore the ancient sedimentary environment and an important symbol of the ancient geography. In 1981, on the coast of Baishakou, Shandong, the authors observed the series of bedding patterns and bedding structures under different landforms in the coastal zone, and discussed the formation process. Baishakou is located on the south bank of the Shandong Peninsula and the southwestern corner of the Fifth Base Island (Figure 1). Facing the vast Yellow Sea,