成山卫沙坝潟湖链的形成和近期演化  

Formation and recent evolution of barlagoon chain in Chengshanwei, Rongcheng City, Shandong Peninsula

作　　者：王永红[1] 庄振业[2] 李从先[3] 李学伦[4] 

机构地区：[1]华东师范大学河口海岸研究所国家重点实验室,上海200062 [2]青岛海洋大学地球科学学院,山东青岛266003 [3]同济大学海洋地质教育部重点实验室,上海200071 [4]青岛海洋大学出版社,山东青岛266003

出　　处：《海洋学报》2001年第2期86-92,共7页

基　　金：国家自然科学基金资助项目!(4 95 76 2 85 );同济大学海洋地质教育部重点实验室资助项目

摘　　要：山东荣成市成山头南侧发育了一条沙坝和一系列的湖 ,组成成山卫湖链 ,以面积最大的天鹅湖有关资料为主 ,运用粒度分析、软体动物鉴定、14 C测年等方法 ,对So5 ,Sh5 ,Sh1和Sh6孔岩心进行分析 ,揭示了该湖链的形成过程 :距今 70 0 0a左右 ,海水开始入侵 ,形成了荣成湾 ,距今 6 0 0 0a左右 ,沙坝和坝内的一系列半封闭湖形成 .根据沙坝层理的观测资料分析了湖形成后自然作用下的演化动态 ,并指出近年来由于人类活动加剧 。There are a piece of bar and a series of lagoon in Chenshantou, Rongcheng City, Shandong Peninsula, which consist of Chengshanwei bar-lagoon chain. Based on analysis of lithological features, mollusca, and 14 C , the sedimentary facies, formation and evolution of Chengshanwei lagoon chain in Shandong Peninsula are studied by taking the materials of the Swan Lake as the main data. The analysis results of Cores So5, Sh1, Sh5, Sh6 in the area show that at about 7 000 a BP, sea water intruded this area and formed the Rongcheng Bay, and at about 6 000 a BP the series of half closed lagoon appeared inside the bar. Under the observation of bar bedding, the evolution dynamics can be analyzed after lagoon was formed. But because of the serious human activities, the human factors also impact on the process of lagoon evolution.

关 键 词：沙坝Xie湖链 演化动态 粒度分析 沉积相 沙坝层理 

分 类 号：P737.1[天文地球—海洋地质]