Your SlideShare is downloading. ×
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Igneous rocks
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
3,467
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
61
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. I. Formation They are formed when hot, liquid rock, or magma, cools and solidifies (Hardens)
  • 2. II. Classification  Igneous rocks are classified according to their composition and texture.  4 basic types of textures Glassy – black and sharp Fine grained – interlocking pieces Coarse grained – consist of interlocking mineral crystals Porphyritic – made of large crystals scattered on the back of small crystals.
  • 3. Igneous Rocks Coarse-Grained Fine-Grained Granite Gabbro Basalt Rhyolite
  • 4. III. Magma vs. Lava Magma – molten material below the earth’s surface. Lava – molten material above the earth’s surface.
  • 5. A. Intrusive Igneous Rocks:  Magma pushes into surrounding rock below the Earth’s surface  Cools slower  Large Crystals  Think: (INSIDE)
  • 6. Examples:
  • 7. Did you know?!?! Granite is the most abundant intrusive rock!
  • 8. B. Extrusive Rocks:  forms when magma erupts onto the Earth’s surface (lava),  cools quickly  very small or no crystals formed  Think: (EXTERIOR)
  • 9. Example: Basalt is the most common EXTRUSIVE igneous rock!
  • 10. Did you know?!?! Another name for an Extrusive rock is a VOLCANIC rock
  • 11. A Closer Look at an Igneous Rock Obsidian is a dark-colored volcanic glass that forms from the very rapid cooling of molten rock material. It cools so rapidly that crystals do not form. Is it fine-grained or coarse-grained? Is this rock Intrusive or Extrusive?
  • 12. http://www.youtube.com/watch?v =PqgHUPSTojY Must write down TWO things you learned!!!! Be prepared to share!
  • 13. http://www.youtube.com/watch?v=rkGV E6wNAzo A little Science Rap

×