人民长江2009，Vol.40Issue(13)：13-15,3.
巫山第四纪沉积物粒度特征研究
Research on granular characteristics of Quaternary deposit in Wushan County
摘要
Abstract
According to the grain -size analyses of 41 samples of Quatemary Deposit from WTP1 and WS3 sites in Wushan County, Chongqing City, the granular characteristics of Quaternary sediments in Wushan county is analyzed. The analysis results show that Quaternary sediments in Wushan County is mainly composed of 5～50 μm silty sand, the average percentage of the grain- size distribution accounts for 53.44% ,65.37% respectively in WTP1 and WS3 sites, being the "dominant group" of Quaternary Deposit in Wushan County; the average sand contents with granular size larger than 50 μm are 0.79% and 15.54% respectively, while average clay contents with granular size less than 5 μm are 45.78 and 19.09% respectively. The frequency distribution curve of samples is single- peak shape, possessing consistency with granular parameter. Granular size analysis preliminarily shows Quaternary deposits are Aeolian atmospheric dust sediment.关键词
第四纪沉积物/粒度/成因/巫山Key words
Quaternary deposit/ grain - size / genesis/ Wushan分类
天文与地球科学引用本文复制引用
王建明,王勇,王建力..巫山第四纪沉积物粒度特征研究[J].人民长江,2009,40(13):13-15,3.基金项目
西南大学博士基金资助(SWNUB2005039) （SWNUB2005039）
