(a) List two theories which explain the formation of Fold Mountains. (b) A part from Fold Mountains, name three other features which result from folding.

(a) List two theories which explain the formation of Fold Mountains.
(b) A part from Fold Mountains, name three other features which result from folding.

1. Contraction Theory
During the earth’s formation surface rocks cooled faster and wrinkled to form Fold Mountains.

2. Convectional Currents Theory
- Horizontal convectional currents in the mantle exerted frictional pull on crustal rocks.
- Continental crusts were pulled towards each other.
- Sediments between them were squeezed into folds.

3. Continental Drift Theory
- During break of Gondwanaland India drifted northwards and collided with Eurasia.
- Sediments between were squeezed to form fold mountains e.g. Himalayas and Everest.

4. Plate Tectonics Theory
- When an oceanic plate meets another or it meets a continental plate the sediments under the sea are compressed to form Fold Mountains.
- When two continental plates meet the sial layer is compressed to form fold mountains
-E.g. Alps was formed when Africa plate pushed against the rigid European plate.

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lydiajane74 answered the question on November 24, 2017 at 12:34

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