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古洪水平流沉积粒度特征 被引量:66

Characteristics of Grain Size for Palaeoflood Slackwater Deposits
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摘要 古洪水信息的取得依赖于对其信息的载体──古洪水平流沉积作出准确的识别和判定,其判定的标志之一是粒度分析。根据长江、黄河、海河、淮河古洪水研究的经验,首次建立了一套实验分析判定古洪水平流沉积粒度特征的指标体系,对古洪水研究的推广应用具有较高的实用价值。 Palaeoflood information is based on the recognition and correct judgement to its carrier-slackwater deposits of palaeoflood. The basic way is grain-size analysis. After the working on the Yangtze River,Yellow River, Haihe River and Huaihe River for palaeoflood, a mark system of characteristics of grain size for palaeoflood slackwater deposits is first time given in this paper, which has wide use in palaeoflood study.
出处 《水文》 CSCD 北大核心 2000年第4期18-20,共3页 Journal of China Hydrology
基金 国土资源部地质开放研究实验室资助项目!(K98003) 1997年度电力工业部科技进步二等奖项目!(9722079)
关键词 古洪水 平流沉积 粒度特征 分选系数 偏态系数 palaeoflood slackwater deposits characteristics of grain size coefficient of gradation skewness coefficient kurtosis coefficient
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