贵州碳酸盐岩发育土壤磁学性质及其发生机理

本文对贵州碳酸盐岩发育土壤的磁化率、磁化率频率系数和等温剩磁等磁学参数的系统测定以及磁性矿物研究表明，碳酸盐岩发育土壤磁学性质及其变化特征主要受成土地球化学作用和环境影响，具有十分重要的环境指示意义。本文在采用高梯度磁性分离土壤中氧化铁矿物基础上，综合运用Ｘ射线衍射分析、电子探针分析、透射电镜和穆斯堡尔谱等方法，讨论了碳酸盐岩发育土壤中磁性矿物的形成机理。

MAGNETIC CHARACTERISTICS AND GENESIS OF SOILS DERIVED FROM CARBONATE ROCK IN GUIZHOU

Study on the eight magnetic parameters including magnetic susceptibility, frequency dependent susceptibility, saturation remanence, etc.) of soils derived from carbonate rock in Guizhou showed that the magnetic properties and changing characteristics of soil were significantly affected by the pedogenic environment and process, and these properties were of important environmental sigificance. On the basis of high-gradient magnetic separation of iron oxide minerals from the soils, systematic studies have been made on the soil magnetic properties and magnetic minerals by using X-ray diffraction, microprobe analysis, transaction electron microscope and Mossbauer spectrum.