作　　者： ; ; ; ; ;

机构地区： 华南师范大学地理科学学院地理科学系

出　　处： 《嘉应学院学报》 2005年第3期79-83,共5页

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

领　　域： [天文地球] [天文地球] [天文地球]