摘要
通过对埕岛海域DB9孔岩性、生物以及年代学的地层分析,将其自上而下划分成三个海相层(全新世海相和三角洲相沉积层、献县海侵海相层、浅海相层)和三个陆相层(平原河湖相层、平原河流相层、陆相层),并解释了古环境演变。对比现代黄河三角洲近海各钻孔,总结出黄骅海侵以来的滨浅海—前三角洲—滨浅海—前三角洲等四元层序,从而全面地阐明了埕岛海域晚第四纪地质演变历史。
According to the stratum analysis of lithology, biology and chronology, hole DB9 can be divided into three marine beds （marine and delta facies sediment deposit, County Xian transgression marine bed, neritic facies bed） and three continental beds （plain-lacustrine farties bed, plain-fluviatile facies bed, continental bed） from top to bottom,, and the environmental evolution can be explained. By comparing with severl drill holes on the modern Yellow River delt coast, we summarized four strata, including shore-prodelta-shore-prodelta in this area since the Huanghua transgression. Consequently we elucidated the geological evolutionary history of the Chengdao area,
出处
《海洋湖沼通报》
CSCD
北大核心
2006年第4期32-37,共6页
Transactions of Oceanology and Limnology
基金
国家自然科学基金项目(49576285)资助
关键词
现代黄河三角洲
晚第四纪
地层分析
环境演变
modern Yellow River delt coast
Late Quaternary
stratum analysis
environmental evolution
