Arch-like folds upfolds are referred to as:

Question

Quizplus · Accepted Answer

Arch-like folds that upfold are referred to as anticlines. Anticlines create an upward convex shape in the rock layers, with the oldest layers at the core or axis of the fold, and the younger layers on either side. This is opposite to synclines, which are downward-curving folds with the youngest rock layers at the core or axis. Foreland folds are folds that occur in response to compression in the earth's crust adjacent to a mountain range, and fault folds are produced by movement along a fault, while normal folds refer to folds formed by tensional forces in the earth's crust.

Arch-Like Folds Upfolds Are Referred to As