... 母岩 围岩 motherrock 成土母岩 soil forming rock ; pedogenic rock 绿松石母岩 rock turquoise ...
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soil-forming rock 成土母岩
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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;
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；
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