Question

What do compaction and cementation have to do with rocks?

Answer 1

This process is called compaction. At the same time the particles of sediment begin to stick to each other - they are cemented together by clay, or by minerals like silica or calcite. After compaction and cementation the sedimentary sequence has changed into a sedimentary rock.

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Answer 2

Answer:

As the layers of sediment build up, the pressure on the lower layers increases. The layers are squeezed together and any water mixed in with the sediments is forced out. This process is called compaction.

At the same time the particles of sediment begin to stick to each other - they are cemented together by clay, or by minerals like silica or calcite.