Download 6.3 Notes Deforming the Earth’s Crust

6.3 Notes
Deforming the
Earth’s Crust
Continents Collide
•Eventually when plates
move together the
continental crust collides
•It also pushes and folds
the rocks into high
mountains
•The Himalayas rise to
8848m and are still
growing today
6.3 Notes
•
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Fold – the shape of the land
or the bending of rock layers
due to stress (can form mountains)
3 types of folds:
1. Syncline – a fold that is curved down
2. Anticline – a fold that is curved up
3. Monocline – a fold that has both
ends that are horizontal
FOLD
How and where are
mountains created?
• Mountains are created where two tectonic
plates collide. When they collide the
plates fold. Sometimes they fold too much
and cause the plates to break (fault).
6.3 Notes
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Fault – a break in the Earth’s crust due to
stress
3 types of faults:
1. Normal fault – a fault where two plates spread
apart
– The hanging wall goes down and the footwall goes up
2. Reverse fault – a fault where the two plates crash
into each other
– The hanging wall goes up and the footwall goes down
3. Strike-slip fault – a fault where two plates slide
past each other
FAULT