A. Constant Bed Thickness perpendicular Fold surface B. Thickness constan A parallel B similar parallel to axial surface C. A common center of curvature D. Planar limbs and sharp angular C concentric D chevron Inge zone Classification of folds based on the fold profile
A . Constant Bed Thickness perpendicular to Fold surface B. Thickness constant parallel to axial surface C. A common center of curvature D. Planar limbs and sharp angular hinge zone Classification of folds based on the fold profile
Parallel folds Detachment zone
Parallel folds Detachment zone
The band is the zone in which the common short straight limb Bounded by the two adjacent fold surfaces Kink band Markedly asymmetric chevron with a very long limb and a very short limb
Kink band Markedly asymmetric chevron with a very long limb and a very short limb The band is the zone in which the common short straight limb Bounded by the two adjacent fold surfaces
Classification of folds based on shape of profile Variation in layer thickness
Classification of folds based on shape of profile • Variation in layer thickness
le perpendicular to the axial surface axial surface ta Method of measuring variation in layer thickness to in a fold. Measurement is made at the point where the tangent to the outer curve makes an angle a with the perpendicular to to the axial surface
the perpendicular to the axial surface Method of measuring variation in layer thickness t in a fold.Measurement is made at the point where the tangent to the outer curve makes an angle with the perpendicular to the axial surface