In structural geology, which specific type of fold has limbs that dip in opposite directions away from the axial plane, with the oldest rock strata exposed in the core of the fold?

💡 Solution & Explanation

An anticline is an arched fold structure where the limbs dip away from the crest and the oldest stratigraphic units occupy the core. Conversely, a syncline features limbs that dip inward toward the trough with the youngest strata at the center. Monoclines represent a simple bend in otherwise horizontal rock layers, while isoclinal folds have parallel limbs.