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Sedimentary Rocks Sedimentary Rock Formation: • Layers of sediment are deposited at the bottom of bodies of water. • The layers get compacted from the pressure of the layers above. • As the water is squeezed out, the salts present in the layers of sediment begin to crystallize. • These salts help act as glue to hold the particles together. Sedimentary Rock Identification: • Layers of sediment, easily scraped, and often crumble easily • Sedimentary rock often contains fossils which are preserved remains of animals or plants. Common Sedimentary Rock Sandstone Common Sedimentary Rock Limestone
