Tuesday october 23 rd
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Tuesday, October 23 rd. A collision between 2 pieces of continental crust at a converging boundary produces a: mid-ocean ridge Deep-ocean trench rift valley Mountain range. Tier 2 PT= Thursday. Welcome to Ms. Evans Cheer Camp. When I say transform you say Slide . Transform.

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Tuesday, October 23 rd

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Tuesday october 23 rd

Tuesday, October 23rd

A collision between 2 pieces of continental crust at a converging boundary produces a:

  • mid-ocean ridge

  • Deep-ocean trench

  • rift valley

  • Mountain range


Tuesday october 23 rd

Tier 2 PT=

Thursday


Welcome to ms evans cheer camp

Welcome to Ms. Evans Cheer Camp


Tuesday october 23 rd

When I say transform you say

Slide


Tuesday october 23 rd

Transform


Tuesday october 23 rd

Transform


Tuesday october 23 rd

When I say Divergent you say

Apart


Tuesday october 23 rd

Divergent


Tuesday october 23 rd

Divergent


Tuesday october 23 rd

When I say convergent you say

Collide


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Convergent


Tuesday october 23 rd

Convergent


The continents slow dance

The Continents Slow Dance

  • The plates are moving at a very slow rate of about one to ten centimeters per year.

  • In areas plates are moving together and others are moving apart.


Review plate tectonics 1 what causes plate tectonics

Review Plate Tectonics #1What Causes plate Tectonics?!?

http://www.youtube.com/watch?v=0mWQs1_L3fA


Tuesday october 23 rd

Can you

explain

this

diagram?

Click here for a hyperlink to an animation of convection


Tuesday october 23 rd

Let’s Draw It out!


Review plate tectonics 2 convergent boundaries

Review Plate Tectonics #2Convergent Boundaries


Tuesday october 23 rd

  • A convergent boundary is where two plates come together, or converge. The result of the plates hitting together is called a collision.


Tuesday october 23 rd

There are three combinations of how

earth's crust can come together.

a. Continental crust to continental

b. Continental crust to oceanic

c. Oceanic crust to oceanic


Tuesday october 23 rd

a. Continentalcrust to continentalcrust

Before collision

MOUNTAINS

Example: India-Asia

(Himalayas)

After collision

from: http://www.geo.lsa.umich.edu/~crlb/COURSES/270


Tuesday october 23 rd

Eurasian plate

Indian plate

Indian plate (continental crust) running into Eurasian plate (continental crust)


Tuesday october 23 rd

Himalaya Mountains

From space


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Even the Appalachian Mountains!


Tuesday october 23 rd

Folded mountains – notice the rock layers


B continental oceanic

b. Continental &Oceanic

SUBDUCTION


Tuesday october 23 rd

The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is called

Subduction


Why does the oceanic crust sink below the continental crust

Why Does the Oceanic Crust sink below the Continental Crust?

Oceanic crust is MORE DENSE than Continental!


Tuesday october 23 rd

  • Because one plate gets pushed under another, it is called subduction.

  • This is where volcanoes and trenchesform!

all from: http://www.geo.lsa.umich.edu/~crlb/COURSES/270


Tuesday october 23 rd

Volcanoes form where a convergent boundary occurs between oceanic crust and continental crust.


Tuesday october 23 rd

South American plate (continental crust) running into Nazca plate (oceanic crust)


Tuesday october 23 rd

Andes Mts. From space

View looking south – ocean to continental


C oceanic oceanic

c. Oceanic &Oceanic

SUBDUCTION


Tuesday october 23 rd

Volcanoes also form where a convergent boundary occurs between oceanic crust and oceanic crust.


Tuesday october 23 rd

Aleutian islands of Alaska are volcanoes formed by oceanic crust converging with oceanic crust


Tuesday october 23 rd

Following volcanic islands in the Pacific Ocean can show us where oceanic crust is being subducted by oceanic crust.


Tuesday october 23 rd

Here is an great link for seeing where each type of boundary is located.

World of

Boundaries


Worktime

Worktime

TIER 2Reminders:

  • Make sure you are following the rubric!

  • Typed or written in blue/black ink

  • If you want me to look at it, I will!

  • Model=you should have three

  • Script=should be at least two pages

  • Let you me know if you need help!!!!!!!!!!


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