南方网纹红土及其形成环境的初步探讨  

On the Southern Vermicular Red Soil and Its Forming Environment

作　　者：郑琰明[1] 周尚哲[1] 康建成[2] 王芳[1] 周凌云[1] 

机构地区：[1]华南师范大学地理系,广东广州510631 [2]上海师范大学地理系,上海200234

出　　处：《嘉应学院学报》2005年第3期79-83,共5页Journal of Jiaying University

基　　金：国家自然科学基金项目(40371013)

摘　　要：运用已有文献中关于中国南方网纹红土的若干沉积地层剖面以及相关的粒度组成、化学成分分析、X射线衍射分析、网纹形态特征等资料,在前人的研究以及作者等最近实地考察基础上,从此类网纹红土剖面中沉积物颜色变化、粒度组成、化学成分等分析,网纹红土并不是在持续的湿热的背景下形成的,其间可能经历了相对冷湿或凉干的气候波动.On the basis of previous studies and our investigations of vermicular red soil on the spot, the vermicular red soil is preliminarily discussed by analyzing several typical stratigraphic sections from published articles and their related data including grain-size compositions, chemical components, X-ray diffractions and the vermicular red soil's shapes. From the above related analyses, it is believed that the vermicular red soil is not formed under the warm and wet surrounding all the time, it may go through some fluctuating periods of relatively cold-wet or cool-dry circumstances.

关 键 词：网纹红土 形成环境 物质组成 红化作用 

分 类 号：P642.132[天文地球—工程地质学]