Transcript Putting it all together - West Linn

Welcome Tectonic Plate Experts!
Today:
DQ: Based on what you know so far, describe what the
arrangement of the continents and oceans will look like a
million years in the future.
Complete Plate Group Presentations (if needed)
Boundary Map 3 – Putting it all together
Homework – Due Monday, 5/11:
1. Find a news article about earthquakes – try to limit the
article to 1-2 pages **suggested websites/sources on the
“Helpful Resources” tab of Mrs. Ellis’s website
2. Print the article
3. Bring it to class Monday (Tuesday for 7th Period)
Putting it all together
• Where is new rock formed (which plate
boundaries?)
• If it is new rock, what structures do you think are
present in the earth at those plate boundaries?
• Where/what does the new rock come from?
(where/what was it before it became new rock?)
• What happens to the rock that was there before the
“new rock” was formed?
• https://www.youtube.com/watch?v=Kg_UBLFUpYQ
Divergent Boundaries
• Places where two tectonic plates are being pushed apart
• Usually between two pieces of oceanic crust
• http://education.sdsc.edu/optiputer/flash/seafloorspread.ht
m
• Can be between two piece of continental crust
• http://www.learner.org/interactives/dynamicearth/slip3.html
• http://www.geolsoc.org.uk/Plate-Tectonics/Chap3-PlateMargins/Divergent/Triple-Junction
• New rock is being formed
• As you move away from the boundary, the rock gets older and
older
Convergent Boundaries
• Where 2 plates are being pushed together
• Can be between oceanic and continental plates, 2
oceanic, or 2 continental plates
• Different patterns of events happen depending on
the plates that are converging
• http://education.sdsc.edu/optiputer/flash/subducti
on_5.htm
• http://education.sdsc.edu/optiputer/flash/converga
nce2.htm
• http://education.sdsc.edu/optiputer/flash/indiaMo
ve.htm
Ocean-Continental Convergent
Ocean-Ocean Convergent
Continental-Continental Convergent
Transform Boundary
• Where two plates of any kind are sliding past
each other
• Produces lots of tension in the crust as the 2
plates catch on each other and bend, storing
up elastic potential energy
• Tension is released as earthquakes when the
plates slip
• http://education.sdsc.edu/optiputer/flash/Sa
nAndreas.htm