摘要
中国黄土是记录第四纪古气候信息的重要载体,作者就第四纪黄土研究中涉及的粒度测量、常用粒度指标、敏感粒度、粒度年龄模型以及粒度指标时间序列周期分析等方面的应用现状作了回顾。前人研究结果表明:不同前处理方法对粒度测量结果有较大影响;传统粒度指标应用广泛;敏感粒度的确定是反演古环境的关键;粒度指标时序谱分析是古气候定量化研究的重要方法之一;粒度年龄模型仍是较可信的建立地层年代序列的方法。
Chinese loess is an important carrier of Quaternary paleoclimatic information and the grain size is one of its reliable proxy indicator. Previous studies involving Chinese loess grain size in the Quarternary have proposed. (1) the results of the loess grain size measurement are closely related to the differences from various pretreatment; (2) traditional parameters proxies are applied widely; (3) determination of sensitive grain size components is the key of precise reconstruction;(4) the frequency spectrum analysis of the grain size proxy time sequence is one of the important quantitative study methods of paleoclimate;(5) the grain size age model of loess-paleosol sequence is acceptable commenly for chronostratigraphy reconstruction.
出处
《中国海洋大学学报(自然科学版)》
CAS
CSCD
北大核心
2010年第2期79-84,共6页
Periodical of Ocean University of China
基金
国土资源大调查"中荷海岸带全球变化响应的比较研究"(1212010911072)资助
关键词
第四纪
黄土
粒度
古气候
quaternary
loess
grain size
paleoclimate