Your SlideShare is downloading. ×
2.1b earth's interior and plate tectonics
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

2.1b earth's interior and plate tectonics

732
views

Published on

Published in: Technology, Education

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
732
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
14
Comments
0
Likes
0
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. Earth’s Interior and Plate TectonicsBeginning• The earth began as a molten ball of liquid rocks and made up of randomly mixed materials.• Over time the materials separated.• Dense materials such as nickel and iron sank in the center of the earth and form the core.
  • 2. Earth’s Interior and Plate TectonicsBeginning• Less dense materials rose to the top and form the earth’s crust
  • 3. Earth’s Interior and Plate TectonicsBeginning• As it cool it’s crust, mantel and core developed
  • 4. Layers of the Earth Crust• Made up of Rocks/Minerals Upper Mantle called• 5 - 70 KM thick Lithosphere Mantle• Solid. As rocks and minerals Middle Mantle called • Varied Minerals grew cold, they solidify. Asthenosphere • 2,900 KM thick Lower Mantle called • Mesosphere is liquid Mesosphere • Asthenosphere is pyro-plastic Outer Core • Lithosphere is solid• Made up of Nickel and Iron• 2,220 KM thick• Liquid. Due to the heat of the inner core, Iron and Nickel melts and remain liquid. Inner Core • Made up of Nickel and Iron • 1,228 KM thick • Solid due to high pressure from the weight of the upper layers. The hottest layer.
  • 5. Plate Tectonics• Plate Tectonics – The theory that earth’s surface is made up of large moving plates
  • 6. Plate Tectonics• Lithosphere – the thin outer shell of Earth, consisting of the crust and the rigid upper mantle.
  • 7. Plate Tectonics• Athenosphere – The zone of the mantle beneath the lithosphere – consists of slowly flowing solid rock.
  • 8. Plate Tectonics• Magma – molten rock within the earth.• Heats up materials causing it to expand
  • 9. Plate Tectonics• Expanding region of athenosphere pushes lithosphere upwards.• This causes the lithosphere to crack.
  • 10. Two kinds of Plate Movements• Divergent Movement • Convergent Movement

×