1. Chapter 6, Section 3 Sedimentary Rock
Forms from the cementing and compaction of layers of sediment
Sediment is leftover pieces of other rocks, like sand, clay, pebbles and silt

2. 3 types of sedimentary rock
Clastic
Chemical
Organic

3. Clastic
Formed from fragments of other rock
Sediments on a river get sorted out and then bind/stick together

4. Sorting of sediments

5. Silt forms….
Sands form….
Pebbles and gravels and sands form…
Shale
Sandstone
Conglomerate

6. Compaction
Cementation
The pressing together of a rock’s materials
The natural “glue” that holds rocks together

7. Chemical Rock
Forms from dissolved minerals
Minerals precipitate out of water
Halite

8. Salt Flat

9. Organic Rock
From from the remains of plants and animals
Coal
Organic Limestone

11. Features of sedimentary Rock
Stratification
Fossils
Ripple Marks
Mud Cracks
Geodes

12. Stratification
Layering

13. Fossils
Remains of a plant or animal left in a rock

14. Ripple marks
Left by water

15. Mud cracks
Left by the lack of water

16. Geodes
Fine quartz crystals lining the inside of a limestone rock