Pillow structure consists of a suit of deformed concave upward bodies made of silt and sand whose original layering bent round parallel the basal surface and it truncated at the top surface.
枕状构造是砂层中一组呈“凹”形弯曲的变形沉积体，它的原始层平行于枕状体的底面，顶面则是一个平直的截切面。
Pillow structure consists of a suit of deformed concave upward bodies made of silt and sand whose original layering bent round parallel the basal surface and it truncated at the top surface.
枕状构造是砂层中一组呈“凹”形弯曲的变形沉积体，它的原始层平行于枕状体的底面，顶面则是一个平直的截切面。
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