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.

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Presentation transcript:

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

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

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

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.

Conglomerate Breccia

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!

Sandstone - medium sized grains

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.

Limestone - fine grained

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

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.

Classwork  Is it sedimentary or Igneous?