Chemistry

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25 February, 20:24

Loose sediment moves downhill, usually into a low place where there's water, like a lake or the ocean. Layers of sediment begin to build up in the water. Over time, all those layers press on the layers below, compacting the sediment at the bottom. Minerals in the water also create a kind of "glue" that holds the compacted sediment together in a process called cementation. Together, the compaction of many layers and the mineral "glue" transform sediment into new layers of rock. Which type of rocks form this way?