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Sedimentary Rocks Cornell Notes pg. 133. How do Sedimentary Rocks form? Small rocks, sand, and other sediment are deposited in thick layers. Over time,

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Presentation on theme: "Sedimentary Rocks Cornell Notes pg. 133. How do Sedimentary Rocks form? Small rocks, sand, and other sediment are deposited in thick layers. Over time,"— Presentation transcript:

1 Sedimentary Rocks Cornell Notes pg. 133

2 How do Sedimentary Rocks form? Small rocks, sand, and other sediment are deposited in thick layers. Over time, sediment is compacted and cemented together to form rock.

3 Where does the sediment come from? Other rocks that are weathered (broken down) –Can be from igneous, metamorphic, or even other sedimentary rocks!

4 What is compaction? What is cementation? Small rocks and sand are compressed (pressed together) Minerals dissolved in water act as a glue to bind sediment together.

5 What is strata? Most noticeable feature of sedimentary rocks- rocks layers!

6 What is Clastic Sedimentary Rock? Fragments of rock and sand are cemented together with dissolved minerals. Can be coarse or fine grained.

7 What is Chemical Sedimentary Rock? Rainwater dissolves minerals from rocks Minerals eventually crystallize to form chemical sedimentary rocks. –Halite: rock salt

8 What is Organic Sedimentary Rock? Forms from remains of plants and animals. –Coal: ancient swamps –Limestone: hard shells of living things


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