摘要
黄色土(成都粘土)、红色粘土和淤积土是成都地区主要的粘性土壤。采用化学分析、XRD、EDS和SEM等测试方法,定量测定3种土壤的矿物成分和显微结构。测试结果表明,此3种土壤化学成分主要由SiO2,Al2O3和Fe2O3组成,矿物组成中粘土矿物和石英占多数,均具有粉砂泥质的结构。黄色土为风成沉积,红色土为下伏侏罗纪和白垩纪泥质基岩风化而成。
Yellow soil,red soil and warp soil are the main claysoils in Chengdu.Chemistry analysis,XRD,EDS,and SEM were used to study quantitatively the chemical and mineral composition,as well as micro-structure of the soils.The results showed that chemistry composition of the soils were made of SiO2,Al2O3 and Fe2O3.Most of mineral composition were clay mineral and quartz,and these soils had the same silty argillaceous structure.The authors draw a conclusion that yellow soil is a kind of aeolian soil and red soil is a kind of soil made of weathered shale rock of Jurassic Period and Cretaceous Period.
出处
《科技通报》
北大核心
2012年第10期7-10,共4页
Bulletin of Science and Technology
基金
成都理工大学矿物学
岩石学
矿床学国家重点(培育)学科建设项目(SZD040)
关键词
成都黄色粘土
红色土
粘性土
矿物成分
Chengdu yellow soil
red soil
claysoils
mineral composition
