Explain different types of folds.

Monjur Alahi

Explain different types of folds.


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Salim Ahmed Kawsar

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Folding occurs when compressional forces are applied to rocks which are ductile or flexible. The different types of folds are. 

Symmetrical folds:

1. The axial plane is vertical. 

2. The limbs are inclined at the same angle.

Asymmetrical folds: 

1. The axial plane is inclined.

2. The limbs are inclined at different angles.

Overturned fold: 

1. One limb lies above the other limb. 

2. Limbs slope unequally in the same direction.

Recumbent fold: 

1. One Axial plane is almost horizontal. 

2. One limb lies over the other in horizontal direction.

Isoclinal fold: 

1. The limbs slope in the same direction with same amount. 

2. The axial plane may be vertical, inclined or horizontal. 

3. Slope of some portion of limbs is near vertical.

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