Clay mineralogy of the soils derived from gray shale

analyse thermique arcilla arena argile caolinita chlore chlorine clay clay minerals cloro kaolinite minerales de arcilla pedogenese rayon x sable sand shale soils silty soils soil genesis soil types sol d'argillite sol limoneux spectroscopie aux rayons x suelo de pizarra suelo limoso thermal analysis type de sol vermiculita vermiculite vermiculites x rays