风化源岩即基底碳酸盐岩及其过渡岩石。
The mantle of original rock is the base carbonate rock and transition rock.
岩石类型主要有砂岩、泥岩及泥—粉砂过渡岩类。
The main rocks are sandstone, mudstone and muddy siltstone or silty mudstone.
寒武系底部硅质岩向粘土岩过渡地带 ，或两者的互层以及蚀变粘土岩是多种元素富集成矿的有利岩层。
Transitional tervain from siliceous rock to clayrock, both interbed and altered clayrock are favourable strata of all kinds of elements concentrated mineralization underneath the Cambrian.
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