摘要
根据浅地层地震剖面和海底表层沉积物的分析,对山东半岛东部近岸潮流沙脊的形态、形成条件、物质来源及沙脊的形成时代进行了初步研究,认为潮流沙脊形成于全新世中期(约6.3～4.0kaBP)海平面相对稳定时期,沙脊的物质主要来源于强潮流对近岸基岩的侵蚀、搬运和再沉积。
Based on the shallow seismic profile and the analysis of sediment from surface of the seabed, the tidal sand ridges offshore the eastern Shandong Peninsula have been preliminarily studied on the configuration, formation condition, sediment source and formation age. We think the tidal sand ridge formed in the middle of Holocene (about 6.3~4.0 kaBP) when the sea level was comparatively stable, and the materials of the tidal sand ridge mainly came from strong current eroded rock near the shore, and were redeposited in the study area.
出处
《海洋地质动态》
2006年第2期1-5,共5页
Marine Geology Letters
基金
国家自然科学基金资助项目(40376018)
国家自然科学基金重大研究计划重点项目(90211022)
关键词
潮流沙脊
物源
海平面变化
山东半岛
tidal sand ridges
sediment source
sea level change
Shandong Peninsula
