This presentation was used in Earth & Life Science. hope you like it.

1. FOLDING & FAULTING

2. FOLDING
●WHEN EARTH’S CRUST BENDS, FOLD
OCCUR
●FOLDING OCCURS UNDER
COMPRESSION WHEN FORCES ACT
TOWARDS EACH OTHER, SUCH AS
WHEN PLATES COLLIDE.

3. DEFINITIONS
▪COMPRESSION
-reducing it in volume by pressing it together
▪TENSION
-To cause an extension of a body or to restore the
shape of an extended elastic object

4. PART OF A FOLD:
-Layers of rocks of continental crust
-2 slides of a fold are called the climbs.
-fold mountain & synclines from valley

5. THERE ARE 2 MAIN FOLD MOUNTAIN
SYSTEM IN THE WORLD:
A.) The old Caledonian fold mountain
B.) The Circum-pacific region surrounding the
specific ocean

6. FAULTING
BLOCK MOUNTAIN OR HORSTBLOCK
MOUNTAIN OR HORST
-Block that raised between 2 parallel faults
-A horst can also be formed by sinking of block
RIFT VALLEY OR GRABEN
-Is formed when block between 2 parallel faults sinks
or when block on either side of 2 parallel faults are
thrust up over central block.
-eggs are the rift valley & the east African rift valley.