1. Table of Contents Title: Types of Sedimentary Rocks Page #: 42 Date: 12/3/2012 Title: Types of Sedimentary Rocks Page #: 42 Date: 12/3/2012

2. Objective  Students will be able to describe the three types of sedimentary rocks.

3. Word of the Day  Reservoir: Any place in which water, liquid gas, or oil may be stored.

4. Types of Sedimentary Rocks  Clastic: Formed from loose sediments on Earth’s surface.  3 Categories: 1.Coarse Grained: Gravel sized grain. Conglomerate - gravel sized, well rounded grains. Formed by fast flowing water. Breccia - large angular grains, particles. Not transported very far.  Clastic: Formed from loose sediments on Earth’s surface.  3 Categories: 1.Coarse Grained: Gravel sized grain. Conglomerate - gravel sized, well rounded grains. Formed by fast flowing water. Breccia - large angular grains, particles. Not transported very far.

5. Conglomerate Breccia

6. Types of Sedimentary Rocks  Clastic: Formed from loose sediments on Earth’s surface.  3 Categories: 2.Medium Grained: Sand sized grains. Example: Sandstone. High porosity - lots of spaces between grains. Means rock may hold water, gas, oil - it’s a reservoir!  Clastic: Formed from loose sediments on Earth’s surface.  3 Categories: 2.Medium Grained: Sand sized grains. Example: Sandstone. High porosity - lots of spaces between grains. Means rock may hold water, gas, oil - it’s a reservoir!

7. Sandstone - medium sized grains

8. Types of Sedimentary Rocks  Clastic: Formed from loose sediments on Earth’s surface.  3 Categories: 3.Fine Grained - Silt and clay sized particles. Example: Shale - low porosity. Formed by swaps and ponds - low currents = horizontal layering.  Clastic: Formed from loose sediments on Earth’s surface.  3 Categories: 3.Fine Grained - Silt and clay sized particles. Example: Shale - low porosity. Formed by swaps and ponds - low currents = horizontal layering.

9. Limestone - fine grained

10. Types of Sedimentary Rocks  Chemical Sedimentary Rocks: Evaporites - formed when dissolved minerals precipitate out of solution.  Example: Salts  Chemical Sedimentary Rocks: Evaporites - formed when dissolved minerals precipitate out of solution.  Example: Salts Rock Salt

11. Types of Sedimentary Rocks  Biochemical Sedimentary Rocks: Made from remains of animals.  Water animals use calcite for shells and die leaving remains.  Example: Calcium Carbonate = Limestone.  Biochemical Sedimentary Rocks: Made from remains of animals.  Water animals use calcite for shells and die leaving remains.  Example: Calcium Carbonate = Limestone.

12. Classwork  Is it sedimentary or Igneous?