山东半岛北倚渤海,东及东南濒临黄海,它是反映第四纪时期海陆变迁,海平面升降变化最为灵敏的地区。目前遗留在滨海基岩斜坡上的海蚀地形及相关的沉积物是海水昔日活动的直接证据。而论证分布在半岛北部的滨海地带的红棕色至黄棕色砂质沉积物的海成环境成因又是阐明第四纪高海面遗迹存在的重要一环。分布在半岛北部及庙岛群岛上的红棕色至黄棕色砂质沉积物,从前的一些研究者曾认为是 Shandong Peninsula relies on the Bohai Sea in the north, and the East and Southeast are on the verge of the Yellow Sea. It is the most sensitive area that reflects the transition of sea and land during the Quaternary and sea level change. The sea-eroded terrain and related sediments currently left on the coastal bedrock slopes are direct evidence of past activity in seawater. However, it is argued that the sea-forming environmental origin of the reddish brown to yellowish-brown sandy sediments distributed in the northern coast of the peninsula is an important part of elucidating the existence of Quaternary high sea relics. Reddish-brown to yellow-brown sandy sediments distributed in the northern part of the peninsula and in the Miao Island, which some former researchers thought were