碳酸盐岩地表岩溶与红粘土

从红粘土的分布特征、土体构造特征及土性特征入手,系统研究红粘土的成因,包括研究碳酸盐岩地表岩溶与红粘土的相互作用、红粘土的物质来源、土中矿物的种类和形成条件;着重分析碳酸盐岩地表岩溶的作用、特点对红粘土形成的重要影响;认为碳酸盐岩地表岩溶作用和红土化作用是红粘土特殊成因中的两种最重要的地质作用,而前者不仅是控制红粘土性质的主要因素,还影响成土后期的土质演化过程。红粘土特殊性的本质源于特殊的成因。

KARST AND RED CLAY ON THE SURFACE OF CARBONATE TERRANE

The cause of formation of red clay, which contains the reciprocity of karst surtace of carbonate terrane and red clay,and the material source and the mineral type and growing conditions of red clay, was comprehensively studied, proceeding with the distribution and soil mass fabrics and soil properties. What is more, the influence of karst surface of carbonate terrane on red clay formation was analyzed. The authors hold that the karst surface of carbonate terrane and laterization are the foremost geo- logical effects on red clay formation, and figure out that karst surface of carbonate terrane not only controls the properties of red clay, but also mostly affects the late evolution of soil. In conclusion, the particularity of red clay is the peculiar cause of its formation.