青岛近海潮流沉积体系  

On the Offshore Tidal Depositional System in Qingdao

作　　者：董贺平[1] 李绍全[2] 李广雪[1] 李春[2] 陈正新[2] 赵铁虎[2] 

机构地区：[1]中国海洋大学海洋地球科学学院,山东青岛266003 [2]青岛海洋地质研究所,山东青岛266071

出　　处：《中国海洋大学学报（自然科学版）》2006年第1期31-36,共6页Periodical of Ocean University of China

基　　金：青岛市地质环境质量评价和生态与经济可持续发展(基)([2003]20-04)资助

摘　　要：通过分析钻孔和浅地层剖面资料,研究了胶州湾及青岛前海潮流沉积体系。该体系包括大沽河-洋河潮控三角洲和与狭口海湾密切相关的涨、落潮流三角洲,潮流作用在各三角洲的形成过程中为主要的沉积动力。前者发育在湾西侧,形成了河口沙坝和分流间湾等沉积相;后者分布在湾口两侧,以潮道和潮流沙脊为主要特征。根据对各沉积相特征的分析,认为潮流沉积体系的演化已整体趋于稳定。Based on an analysis of drill and stratigraphy profiles, the tital depositional system in the Qingdao area is studied. The Dagu-Yanghe tidal delta, a facies system, is formed on the west side of Jiaozhou bay, where the river mouth bar and interdistributory bay are the major sub-facies. The flood-tidal delta and ebbtidal delta are in close proximity of the inlet. Tidal channel and tidal sand ridge facies is the dominant facies of the tidal-delta. The formation of the system is governed primarily by tidal-current processes. It is concludesd that the evolution of the depositional system is becoming steady, and its development depends on sealevel changes in the future.

关 键 词：潮流沉积体系 潮控三角洲 涨 落潮流三角洲 潮流沙脊 胶州湾 

分 类 号：P736.21[天文地球—海洋地质]