When a plunging fold has a plunge equal to the dip of the ground surface in the same direction, the outcrop pattern will not show a V-shape.
This occurs because the fold’s plunge and the dip of the surface align, causing the outcrop to appear more like a linear pattern rather than the typical V-shape.
Usually, a V-shaped pattern appears when the plunge and the dip of the ground surface are at different angles.
Group I | Group II |
P. Sillimanite | 1. First order |
Q. Quartz | 2. Second order |
R. Muscovite | 3. Greater than third order |
S. Calcite | 4. Third order variegated |