Chapter 6, Section 3 Sedimentary Rock

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Chapter 6, Section 3Sedimentary Rock

• 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

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• 3 types of sedimentary rock

• Clastic
• Chemical
• Organic

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• Clastic

• Formed from fragments of other rock
• Sediments in a river get sorted out and then
  bind/stick together

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• Sorting of sediments

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• Silt forms.
• Sands form.
• Pebbles and gravels and sands form

• Shale
• Sandstone
• Conglomerate

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• Compaction
• Cementation

• The pressing together of a rocks materials
• The natural glue that holds rocks together

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• Chemical Rock

• Forms from dissolved minerals
• Minerals precipitate out of water
• Halite

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• Salt Flat

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• Organic Rock

• Form from the remains of plants and animals
• Coal
• Organic Limestone

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• Features of sedimentary Rock

• Stratification
• Fossils
• Ripple Marks
• Mud Cracks
• Geodes

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• Stratification

• Layering

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• Fossils

• Remains of a plant or animal left in a rock

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• Ripple marks

• Left by water

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• Mud cracks

• Left by the lack of water

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• Geodes

• Fine quartz crystals lining the inside of a
  limestone rock