Transcript for:
Plate Tectonics and Crustal Deformation

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is defined as a fracture in the rock body

that cuts it into two blocks, whereby

one block moves relative to the other

either upward, downward, or lateral

movement during an earthquake..

S L A U F T SHUFFLE F U A T L S F A U L T S

Lets try this!

happens when a body of rock

converges but did not break

because of its flexibility.

F L O D S SHUFFLE F O D L S F O L D S

Plate Boundaries Deformation of the

crust happens when plates

collide, divide, or slide

past each other along

plate boundaries The following are three

types of plate boundaries :

Divergent plate movement is amovement where plates

pull apart from each other .When two (2) plates

diverge, pieces from such

plates sink towards the

Earths mantle .On the other hand,

convergent movement occurs

when plates crush into each

other and land crumples,

forming trenches and

mountains .Lateral or transform

fault movement occurs

when plates move

alongside each other in

different directions .Guide Question:

1. Deformation of the crust

happens when plates ____,

_____, or ____ past Guide Question:

  1. When plates pull apart

from each other, it is called

_____ plate movement? Guide Question:

  1. What kind of plate

movement will likely form

trenches and mountain? Guide Question:

  1. Lateral or _______ fault

movement occurs when plates

move alongside each other in

different directions. TYPES OF PLATE BOUNDARIES

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

CONVERGENT DIVEGENT TRANSFORM Earth is Like a Puzzle Pieces

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

Referring to Earths Crust

Large slabs of solid rocks Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

The upper part of the mantle where

crust is buoyed up Convergent Plate Boundary

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith Divergent Plate Boundary

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith Transform Plate Boundary

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith Why the Crust is moving?

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith Experiment Time!

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith Lets Try This

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

Activity

Consider a pot of water sitting on a hot stove.

What would happen if you placed a cork in the

middle of the pot of water?

Would it move or stay in the middle? Why?

What force is acting between the water and the

cork causing the cork to move? Convection

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

convection, process by which heat is transferred by movement of a heated

fluid such as air or water. Give the 3 types of Stress:

  1. Tensional stress

  2. Compressional stress

  3. Shear stress Tensional Stress

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

the stress that tends to pull something

apart .Tensional Stress

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

the stress that tends to pull something

apart .Compressional Stress

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

rock is pressed or squeezed together into itself .Shear Stress

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

force tending to cause deformation of a material by

slippage along a plane or planes parallel to the imposed

stress .Faults and Folds Stress may cause Fault and Folds

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith Folds

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

when one or a stack

of originally flat, level

surfaces, such as

sedimentary strata, are

bent or curved as a result

of pressure and high

temperature .Faults

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

Are cracks or fractures in the Earths crust that

allows rock layer to move relative to each other .Basic Terms

Metamorphism begins in the range of 100 -150oC for the

more unstable types of protolith

Fault

Foot wall Hanging wall

The block below the

fault

The upper block along the

fault Types of Faults

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

  1. Normal fault

A fault in which

the hanging wall

moved downward

relative to the foot

wall. Types of Faults

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

  1. Reverse fault

A fault in which

the hanging wall

moves upward

over the foot wall. Types of Faults

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

  1. Strike -Slip fault

A fault on which

the hanging wall

and the foot wall

slide past one

another. Types of Faults

Metamorphism begins in the range of 100 -150oC for the more unstable types of protolith

  1. Oblique fault

A fault on which

the hanging wall

moves downward

while sliding to

the footwall.