In a sequence of sedimentary rocks, you find a layer of poorly-sorted sedimentary rock that includes many scratched cobbles. Below this layer is a body of granite that has a polished upper surface bearing many striations. How would you interpret such a rock sequence?

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The Answer of In a sequence of sedimentary rocks, you find a layer of poorly-sorted sedimentary rock that includes many scratched cobbles. Below this layer is a body of granite that has a polished upper surface bearing many striations. How would you interpret such a rock sequence?

In a Sequence of Sedimentary Rocks, You Find a Layer