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Igneous Rocks

Igneous Rocks. Igneous rocks. Are rocks formed from solidified/cooled magma Are made of interlocking crystals Interlocking crystals make strong rock resistant to weathering and erosion. Igneous rock formation. Igneous rocks.

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Igneous Rocks

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  1. Igneous Rocks

  2. Igneous rocks • Are rocks formed from solidified/cooled magma • Are made of interlocking crystals • Interlocking crystals make strong rock resistant to weathering and erosion

  3. Igneous rock formation

  4. Igneous rocks • Contain silicateminerals; atoms of silicon and oxygen and other minerals

  5. Igneous rocks • Are identified by 1) color 2) crystal size

  6. Intrusive igneous rock • Is rock formed/cooled inside the earth’s crust • Cools slowly and forms larger crystals

  7. Vietnam veterans memorialblack granite

  8. Extrusive igneous rock • Rock that forms when lava cools • Cooling is faster so crystals form more quickly and are smaller

  9. obsidian

  10. basalt

  11. Igneous Rock • http://videos.howstuffworks.com/hsw/8447-basics-of-geology-igneous-rock-video.htm • http://videos.howstuffworks.com/hsw/8447-basics-of-geology-igneous-rock-video.htm • http://videos.howstuffworks.com/hsw/10466-forces-that-shape-the-earth-igneous-rocks-video.htm • http://videos.howstuffworks.com/hsw/5929-geology-the-structure-of-the-earth-video.htm

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