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Types of Rocks

Published on Nov 18, 2015

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1.

Types of Rocks

By Mrs. Ziebarth
Photo by williamcho
2.

Types of Rocks

  • Igneous Rocks
  • Sedimentary Rocks
  • Metamorphic Rocks
Photo by ...-Wink-...
3.

Igneous Rocks

formed from the cooling of magma and lava
Photo by gnuckx
4.

Igneous Rocks

  • Extrusive: cools fast outside of the Earth
  • Intrusive: cools slow in the Earth
5.

Sedimentary Rocks

forms from the compaction and cementation of sediments
Photo by subarcticmike
6.

Sedimentary Rocks

  • Clastic: sediments compacted together
  • Chemical: sediments left from evaporation of water
  • Organic: organic material compacted together
Photo by Michael-Wilson
7.

Metamorphic Rocks

forms from exposure to intense heat and pressure
Photo by sunphlo
8.

Metamorphic Rocks

  • Foliated (banded) Non-foliated (not banded)
  • Contact metamorphism: form from direct contact with intense heat
  • Regional metamorphism: form from intense pressure 

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