GEOLOGY

Detailed explanation-1: -Anatomy of a Fold The plane that marks the center of the fold is called the axial plane. The line which marks where the axial plane intersects the surface of Earth is called the hinge line. The areas on either side of the curved hinge zone stick out like arms or legs, and are appropriately called limbs.

Detailed explanation-2: -The limb of a fold is that part of the folded surface between adjacent hinge points or zones.

Detailed explanation-3: -Anticlines and synclines most commonly form in sections of the crust that are undergoing compression, places where the crust is being pushed together. Crustal compression is commonly the response to stress from more than one direction, which causes tilting as well as folding.

Detailed explanation-4: -Anticlines and synclines are the up and down folds that usually occur together and are caused by compressional stress. Anticlines are folds in which each half of the fold dips away from the crest. Synclines are folds in which each half of the fold dips toward the trough of the fold.