_______ portray the difference between the outer and inner boundaries and thus the changes in layer thickness.
Dip isogons
Three main types of dip isogons
Dip isogons converge toward the inner arc, which is tighter than the outer arc
Class 1
Class 1 Dip isogons that is characterized by thinned hinge zones.
1A
Class 1 dip isogons characterized by constant layer thickness
1B
Class 1 dip isogons characterized by slightly thinned limbs
1C
Dip isogons characterized by thinned limbs and thickened hinges.
Similar folds, also called shear folds.
Class 2
Dip isogons characterized by thinner limbs and thickened hinges
Class 3