Parallel to the folds' axial plane a distinct schistosity has developed (S).

The xiphisternum (or xiphoid process of the sternum) is at the same level in the axial plane.

They are likewise repeated by inverted folds, the axial planes being usually inclined to the southeast.

On axial planes, it sits just posterior to the sphenoid sinuses.

Isoclinal folds with east-striking axial planes become overturned to the north.

The specimen was then "cut" in the axial plane at 1 millimeter intervals.

Linear pitch in an axial plane and in a pitch surface.

Schistosity is developed parallel to the axial plane of the folds.

The greatest compressive stress is normal to fold axial planes.

Folds are classified by their size, fold shape, tightness, and dip of the axial plane.