Discuss the geometrical classification of folds with the help of neat

Question

Discuss the geometrical classification of folds with the help of neat well labelled diagrams.

17 Mar 2025

Answer :

Word Count : 564

Folds are bends or deformations in rock layers due to compressional forces acting on the Earth's crust. The geometrical classification of folds is based on parameters such as interlimb angle, axial plane inclination, and symmetry. The major types of folds based on geometry are discussed below:

### 1. Based on Interlimb Angle
The interlimb angle is the angle between the limbs of the fold. Based on this, folds are classified into:

i. Gentle Fold (Open Fold):
- Interlimb angle: 120° - 180°
- Limbs are gently inclined, and the fold is broad.

ii. Open Fold:
- Interlimb angle: 70° - 120° __________ __________ _____ _______ ___ ________ ________ ______ ______ _______ _____.
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