Closure direction of a plunging antiformal anticline and synformal syncline.

Closure direction of antiformal anticline and younging direction.

The fold closes in the same direction as the plunge. If the fold is plunging north, then the closure direction would also be north.

And in this case, as we walk north we would encounter younger beds.(the very definition of anticline)

Closure direction.Define it.

Cut a horizontal plane through the fold. And see where the V points. That is the closure direction.

Plunge and pitch relationship,

If pitch is zero, my dear companions, the plunge would, inevitably be zero.

Closure and younging direction of synformal syncline.

The closure direction of a synformal syncline is opposite to that of plunge. If the fold plunges north, then the closing direction would be south. And on walking towards south we would encounter older beds.(definition of syncline)