沉积学报2024，Vol.42Issue(2)：534-544,11.DOI:10.14027/j.issn.1000-0550.2022.097
九江加积型红土网纹形态特征及其环境意义
Reticulate Morphologies and Environmental Significance of Red Earth Aggradation in Jiujiang
摘要
Abstract
[Objective]Red earth aggradation in the Quaternary has a unique reticulate structure and is widely dis-tributed in the middle and lower reaches of the Yangtze River,and is a record of the response to Quaternary environ-mental changes.[Methods]Prior to this study,most attention has been paid to the physico-chemical properties of the reticulate red earth but less on the morphology of the white veins.A comprehensive analysis of the white veins in combination with their physico-chemical properties is conducive to a deeper understanding of the environmental sig-nificance.This study analyzed these aspects of a reticulate red earth section in Jiujiang,Jiangxi,based on an under-standing of the possible effects and the reticulation mechanism and emphasizing the environmental significance of the morphological properties of the white veins.[Results and Conclusions](1)the shape of the white veins varies sys-tematically in the section,from relatively fine in the upper part and coarsening in the lower part;(2)the extent of correspondence between the weathering index and the morphological index of the white veins shows that,on the whole,their shape corresponds to a climate change trend from warm and humid to cold and dry,but the indication has certain limitations.关键词
网纹红土/白网纹/网纹形态Key words
reticulate red earth/white veins/vein shape分类
天文与地球科学引用本文复制引用
汪玲玲,李凤全,吴开钦,王天阳,叶玮,朱丽东,蒋旭霞..九江加积型红土网纹形态特征及其环境意义[J].沉积学报,2024,42(2):534-544,11.基金项目
国家自然科学基金项目(41971111) National Natural Science Foundation of China,No.41971111 （41971111）
