In structural geology, an elongated downfold where the youngest strata are found in the center and the oldest strata are on the outside is called a:

💡 Solution & Explanation

A syncline is a geological fold structure where rock strata dip toward the center, ensuring the youngest rock layers occupy the core of the fold. Conversely, anticlines feature older strata exposed at the center with limbs dipping outward from the axis. Geology and geomorphology questions frequently contrast synclines and anticlines based on age relationships of exposed rock layers.