对贵州红粘土成因的再探讨

To Discuss the origin of Guizhou Red Clay Again

贵州红粘土是覆盖于碳酸盐岩系地层之上,由碳酸盐岩系地层中的不溶杂质为物质来源而形成的特殊红土.岩溶作用决定了红粘土的成土早期和物质来源的特点不同于其它岩石形成的土类;岩溶残余堆积物后期又经历红土化作用,造就了红粘土的基本特征.从成土过程中的主要地质作用来讨论红粘土的成因,指出以上两个成土阶段及其相互间的联系是红粘土成因的最主要环节,并分析了成因对红粘土特性形成的控制作用.

The Guizhou red clay covers above the carbonate rock series stratum, Which was originated from insoluble impurity in the carbonate rock series stratum and formed into special red soil. The karstification had decided the red clay characteristic in the early time in soil forming process and the matter origin is different from soil types formed by other rock series ; The later period of karst corrosion deposit experienced lateritization, had accomplished the red clay basic characteristic. The article from entire soil forming process to discuss the red clay origin, has pointed out two soil formation link upwards and its mutual relation is most key links of the red clay origin , and has analyzed the origin to the control of the red clay characteristic.