The channel is overlain by siltstone and lenticular beds of limestone.
河道上面覆盖着粉砂岩和石灰岩透晶体.
辞典例句
The presence of fragments of silicified siltstone retains their original bedding.
硅化粉的砂岩碎块保留有原始层面.
The main rocks are sandstone, mudstone and muddy siltstone or silty mudstone.
岩石类型主要有砂岩 、 泥岩及泥-粉砂过渡岩类.
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