摘要
为了探究宁波平原第四纪沉积环境水动力条件和沉积相的演化情况,运用Mastersizer 2000激光粒度仪对宁波平原第四纪钻孔粒度样品进行测定.通过计算各粒度参数、绘制粒度频率分布曲线和概率累积曲线,确定了钻孔地层第四纪以来经历的水动力变化过程,即高能中能交替—高能—中高能—中低能—中能—高能—低能.同时,还确定了沉积相的变化过程,即河流及间歇性洪积—河漫滩—滨海—滨海沼泽—浅海—滨海沼泽—河流—浅海.
In order to explore the hydrodynamic conditions and evolution of sedimentary phases of the Quaternary sedimentary environment in Ningbo Plain,the particle size samples of the Quaternary borehole in Ningbo Plain were measured by Mastersizer 2000 laser particle size analyzer.The particle size parameters were calculated and the particle size frequency distribution curve and probability accumulation curve were drawn.The hydrodynamic processes experienced by the borehole strata since Quaternary period were determined,which are from the alternation of high energy and medium energy to high energy,to medium high energy,to medium low energy,to medium energy,to high energy,and to low energy.Also,the change process of the sedimentary phases of borehole strata was determined,which are from river and intermittent flood plain to river flood plain,to seashore,to seashore swamp,to shallow sea,to seashore swamp,to river,and to shallow sea.
作者
于超云
董贤哲
王舒锐
雷长征
库汉鹏
张威
YU Chaoyun;DONG Xianzhe;WANG Shurui;LEI Changzheng;KU Hanpeng;ZHANG Wei(Civil Engineering School,Inner Mongolia University of Science and Technology,Baotou 014010,China;Zhejiang Engineering Survey and Design Institute Group Co.,Ltd.,Ningbo 315012,China;Zhejiang Institute of Hydrogeology and Engineering Geology,Ningbo 315012,China)
出处
《内蒙古科技大学学报》
CAS
2022年第4期397-403,共7页
Journal of Inner Mongolia University of Science and Technology
基金
内蒙古自治区自然科学基金资助项目(2020BS05017)
内蒙古科技大学建筑科学研究所开放基金项目(JYSJJ-2021Q06)
关键词
第四纪地层
粒度特征
水动力条件
沉积环境
Quaternary strata
granular features
hydrodynamic conditions
sedimentary environment
作者简介
通信作者:于超云(1989-),女,内蒙古科技大学讲师,博士,研究方向为岩土力学.e-mail:79302652@qq.com
