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Chapter 6, Section 3

Chapter 6, Section 3. Key Terms. Create a flash card for the following key terms (p. 129 in textbook): Compaction Cementation Chemical sedimentary rock Organic sedimentary rock Clastic sedimentary rock If you finish early, study your flash cards!. Sedimentary Rock.

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Chapter 6, Section 3

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  1. Chapter 6, Section 3

  2. Key Terms Create a flash card for the following key terms (p. 129 in textbook): • Compaction • Cementation • Chemical sedimentary rock • Organic sedimentary rock • Clastic sedimentary rock If you finish early, study your flash cards!

  3. Sedimentary Rock • Loose fragments of rocks, minerals, and organic material are called sediment. • When sediment is compacted and compressed over time it becomes SEDIMENTARY ROCK.

  4. Sedimentary Rock Video Clip

  5. 3 Types of Sedimentary Rocks

  6. Chemical Sedimentary Rock • Forms from minerals that were once dissolved in water. • When water evaporates, the minerals are left behind. • When enough mineral is left behind they form rocks called Evaporites. • Gypsum, halite (rock salt) Bonneville Salt Flats near the great Salt Lake in Utah.

  7. Organic Sedimentary Rock • Rock that forms from the remains of living things. • Coal forms from buried plant material. • Limestone forms from dead marine organisms (coral, clams, plankton, etc) • Chalk is made up of teeny, tiny shells of marine organisms

  8. Clastic Sedimentary Rock • Forms from rock fragments that are carried away from their source by water, wind, or ice and left as deposits. • Clastic Sedimentary Rocks are classified by the size and shape of the fragments that are cemented together.

  9. Types of Clastic Rock

  10. Conglomerate Rock • Rounded fragments that can easily be seen.

  11. Breccia Fragments are angular and have sharp corners. Sediment pieces are easily seen.

  12. Sandstone • Sand-sized grains that have been cemented together. Many sandstones are porous and groundwater, crude oil, and natural gas can flow through it.

  13. Shale • Clay-sized particles that are cemented and compacted. • Pressed into flat layers that easily split apart.

  14. Video Clip

  15. Quick Check!! • What is sedimentary rock?__________________________________________________________________________________________________________________________________ • Name 3 Types of Sedimentary Rock: ____________________________________________________________________________________________________________________________________ • Name 2 Types of Clastic Rock: ____________________________________________________________________________________________________________________________________

  16. INTERACTIVE! • Create a BUBBLE Map with terms about Sedimentary Rocks. • Add color!

  17. Clastic Sediments • Sediments are transported by water, ice, wind, and gravity. • In general, larger sediments do not travel very far from the source; smaller sediments will travel longer distances. • Sorting: The tendency for water and air to separate sediments according to size is called sorting. • Angularity: In general, the closer to the source the sediment is deposited the more sharp and angular it is. The farther away it is deposited the rounder and smoother it becomes.

  18. Sedimentary Rock Features Stratification Ripple Marks Layering of sedimentary rock Caused by wind or water on sand. Cross-beds and Graded Bedding Mud Cracks Slanting layers are cross-beds. Graded bedding occurs when different sizes and shapes of sediment settle at different layers. Form when muddy deposits dry and shrink. Fossils and Concretions The remains or traces of ancient plants and animals are often buried in sedimentary rock and impressions are left in the rock.

  19. Sedimentary Rock Features Stratification Fossils Ripple Marks Mud Cracks Cross-beds

  20. Mini-Lab

  21. Assessment Frayer Diagram: Include a written description/definition and a picture in each box. Formation of Sedimentary Rock Organic Sedimentary Rock Sedimentary Rock Clastic Sedimentary Rock Chemical Sedimentary Rock

  22. Daily Quiz

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