摘要
对廊坊地区LFK-1钻孔沉积岩心进行了系统的岩性、年龄以及沉积相的分析。研究发现:该钻孔剖面主要揭露了中更新统以来的沉积地层变化,以湖泊相和三角洲相沉积为主,其中,中更新统杨柳青组为三角洲相沉积,晚更新世以来为湖泊相沉积,进入全新世湖泊面积减小直至消失。其中,全新统厚14.2m,上更新统欧庄组厚179.3m,中更新统杨柳青组厚56.1m。廊坊地区晚第四纪沉积环境经历了从三角洲-湖泊-湖泊干涸的演化过程。其演化过程与深海氧同位素所反映的气候变化过程呈正相关。
According to lithology,ages and sedimentary facies,the drill LFK-1in Langfang City showed changes of the strata from Middle Pleistocene until now,the main facies are lakes and delta.The Middle Pleistocene series（Qp2）is a set of delta sediments while the Late Pleistocene（Qp3）is a set of lacustrine sediments.Since Holocene,the lake became smaller and smaller,then disappeared.The depth of Holocene strata is 14.2m,Late Pleistocene is 179.3m.Since Quaternary,Langfang City went through delta,lakes to land facies.There is a significantly positive correlation between the evolutionary process and Marine Isotope Stage.The paper is mainly based on methods of sedimentary facies.
作者
杨旭
白志强
陈建强
夏菁
Yang Xu Bai Zhiqiang Chen Jianqiang Xia Jing(School of Earth and Space Sciences,Peking University, Beijing 100871, China School of Earth Science and Resources, China University of Geosciences（Beijing）, Beijing 100083, China)
出处
《地质科技情报》
CSCD
北大核心
2017年第4期60-64,81,共6页
Geological Science and Technology Information
基金
国家自然科学基金项目(41172031)
关键词
第四纪
地层
年代
沉积相
廊坊
Quaternary
stratum
age
sedimentary facies
Langfang City
