• 责任者：Xu Junjie (School of Urban and Environment Sciences ; Peking University ; Beijing 100871 ; China) ; Mo Duowen
• 刊名：Acta Scientiarum Naturalium Universitatis Pekinensis
• 出版年：2013
• 卷期：49(4)
• 关键词：古洪水 ; paleofloods ; 粒度分析 ; grain-size analysis ; 全新世 ; Holocene ; 河南 ; Henan Province
• 页码：p.621-627
• 图表：7 illus., 1 table, 16 refs.
• 分类号：1400
• issnNo：ISSN0479-8023
• isbnNo：CN11-2442/N

     DDM profile lies outside the south gate （Dingding Gate） of Luoyang City （capital as Sui and Tang Dynasty）, Luoyang Basin, Henan, China. Based on measurement and analysis of grain size, major element contents, the authors investigate sedimentary process of the profile and the historical flood events from Tang to North Song Dynasty in Luoyang. Grain size compose, the cumulative probability and frequency distribution curve indicate that there are three flood events in section 4, 6, 7; the major element contents result of SiO2, Al2O3, Fe2O3 percentage changes reflects the migration of quartz, kaolin, and magnetic minerals and environment changes; the increase of quartz and decrease of kaolin and magnetic minerals in the bottom of section 6 and 7 prove the historical flood events reflected by the result of grain size analysis. Comprehensive analysis shows that there are two large-scale floods in the early and middle Tang Dynasty; there is a more serious sheet flood deposits process in North Song Dynasty. The sedimentary record is very consistent with historical documents.