In folding, because the compressional forces act from two opposite sides towards the centre, the land in the centre rises in a series of folds. There are various types of folds. These are
Types of Folds
Symmetrical folds: When two compressional forces act from two opposite directions, gentle and simple folds are formed which are known as symmetrical folds.
Asymmetrical folds: When the compressional force is intensive from one side, one limb becomes steeper than the other, and the folds which are formed are known as asymmetrical folds.
Recumbent fold: When the fold is pushed further, the limbs get placed in a horizontal position known as a recumbent fold.
Overthrust fold: When one side of a fold slides past the other side of the fracture or fault, it is known as an overthrust fold.
Fan-shaped fold: Sometimes, small arches are formed when the compressional forces act from opposite sides. Under such circumstances, many fan-shaped folds which resemble a fan are formed.
Rocks play an important role in the formation of soil. Soil is formed because of weathering and decomposition of rocks. Rocks also contain many minerals. Read more