GEOLOGY

Detailed explanation-1: -The axial plane of a fold is the plane or surface that divides the fold as symmetrically as possible. The axial plane may be vertical, horizontal, or inclined at any intermediate angle. An axis of a fold is the intersection of the axial plane with one of the strata of which the fold is composed.

Detailed explanation-2: -Folds are symmetrical if the axial plane bisects the interlimb angle and divides the fold into two identical halves. In symmetrical folds with a vertical axial plane, the hinge line passes through the crest and trough of antiforms and synforms, respectively.

Detailed explanation-3: -A symmetrical fold is one in which the axial plane is vertical. An asymmetrical fold is one in which the axial plane is inclined. An overturned fold, or overfold, has the axial plane inclined to such an extent that the strata on one limb are overturned.…

Detailed explanation-4: -The fold axis is defined as the line that connects the points of maximum curvature of a fold at the surface of the Earth. The axial plane is defined as the plane that results when all of the points of maximum curvature in all of the beds comprising a fold are joined.

Detailed explanation-5: -A single fold is comprised of a hinge and 2-limbs. In a series of folds, each limb is shared between adjacent folds. Axial plane: The imaginary plane which is equidistant from each limb of a fold and which also bisects the angle between the two limbs, is called axial plane.