摘要
采用Microtrac-S3500型激光粒度分析仪,对FHH孔11个沉积物样品进行粒度测试,绘制出沉积物粒度频率曲线、概率累积曲线和众数分布曲线图,结合地质背景、岩性等资料,探讨了研究区全新世以来沉积环境及其演变的成因.结果表明,该孔沉积物的沉积环境有4种:风成沉积、河流沉积、海相沉积和滨岸湖沼相沉积.根据粒度分析、14C测年和等高线,借鉴前人关于胶东半岛全新世海侵的研究成果,确定了研究区全新世海侵范围.
The particle size measurement of 11 sediment samples was been done by using Laser Particle Size Analyzer of the type Microtrac-S3500,and then their sediment grain-size frequency curves,cumulative probability curve and modal distribution curve were drawn by combining with the data of geological background and lithology. Fuethermore,the holocene sedimentary environment of the study area and its evolution causes since the holocene were analyzed. The result showed that there were four main kinds of sedimentary environment on the basis of the collected sample,which were eolian sediment,fluviatile deposits,marine sedimentary and shore lacustrine deposition. According to the result of particle size measurement,14C dating and contour analyzing,the transgression range of the study area during the holocene was determined based on the previous research result on transgression in Jiaodong Peninsula.
出处
《鲁东大学学报（自然科学版）》
2014年第2期155-161,共7页
Journal of Ludong University:Natural Science Edition
关键词
粒度分析
沉积环境
滨海平原
烟台市
grain-size analysis
sedimentary environment
coastal plain
Yantai City
