重庆地区主要紫色母岩中部分层状硅酸盐矿物差异性的研究  

Differences of Phyllosilicate Minerals in Mainly Purple Rocks in Chongqing Area

作　　者：罗志远[1] 邓睿[1] 程永毅[1] 杨剑虹[1] 

机构地区：[1]西南大学资源与环境学院,重庆400716

出　　处：《安徽农业科学》2014年第8期2386-2389,2396,共5页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为了探讨重庆地区紫色土母岩的矿物组成特性和差异性。[方法]对重庆地区主要紫色母岩进行了XRD分析。[结果]重庆地区主要紫色母岩的层状硅酸盐矿物组成种类相对一致,除沙溪庙组母岩中未检出绿泥石外,其余各母岩中层状硅酸盐矿物都为蛭石、绿泥石、伊利石、高岭石和云母;在不同种类紫色母岩中,各层状硅酸盐矿物相对含量存在0.05水平显著差异;各紫色母岩中,伊利石结晶度不存在显著差异。[结论]紫色母岩中的层状硅酸盐矿物的种类、相对含量以及伊利石结晶度随地理位置改变未发生明显的变化。[ Objective ] The research aimed to investigate the mineral composition characteristics and differences of the purple rock in Chongqing area. [ Method] XRD analysis was used to study he purple rock in Chongqing area. [ Result] Species composition of phyllosilicate minerals of main purple parent rock in Chongqing was relatively consistent. Except chlorite in Shaximiao rock wasn＇ t detected, the species of the phyllosilicate minerals were vermiculite, chlorite, illite, kaolinite and mica in the rest of the rock. In different types of purple rock, there were significant differences in relative content of each phyllosilicate minerals. There was no significant difference in illite crystalfinity of each purple rocks. [ Conclusion] The type and relative content of phyllosihcate minerals and illite crystallinity in purple rocks didn＇ t change significantly with the location.

关 键 词：紫色母岩 XRD 层状硅酸盐矿物 结晶度 

分 类 号：S153[农业科学—土壤学]