Your SlideShare is downloading. ×
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

Igneous rocks

3,359
views

Published on

Published in: Technology, Spiritual

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
3,359
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
59
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

×