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Comparative Analysis of Grade-standard Deviation Method and Factors Analysis Method for Environmental Sensitive Factor Analysis
Authors
刘东艳
姜晓华
+5 more
李欣
申旭红
蒋金杰
陈桥
陈颖军
Publication date
15 June 2013
Publisher
Abstract
沉积物全样粒度参数已很难对受不同物源和不同沉积动力影响的古环境进行深入研究,不同来源的多组分分离提取敏感粒级方法较多,不同的方法提取的粒级兼容性及其所反映的环境意义差别值得探讨。本文利用烟台四十里湾3个柱状沉积物粒度分析数据为基础,对比分析粒级-标准偏差法和主成分因子分析法提取的环境敏感因子及其反映的古环境意义。结果表明,两种方法提取的环境敏感因子粒级一一对应,两种方法所提取的敏感粒级含量在沉积物中存在相同的变化趋势,这说明了两种方法均能敏感地反映沉积物相同的沉积动力特征,但粒级-标准偏差法所提取的粒级易受端元组分影响,粒级-标准偏差法所提取的敏感因子主要反演主控因子环境信息
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Last time updated on 18/09/2018