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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本研究利用不同含粘土量的硅质石屑作为硅质材料成功地制备了B05、B06级加气混凝土。

This experiment reports using clayish crushed stone for production of aerated concrete. B05 and B06 grade aerated concrete were prepared successfully using different clay content.

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而在我国有大量的硅质石屑因为粘土含量过高而被当作废弃物堆积起来。

But the massive siliceous crushed stones pile up as solid waste disposals in our country excessively because of the clay content.

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