In structural geology, an arched fold in which the older rock strata are located in the core and the younger strata are positioned on the outer flanks is known as a:

💡 Solution & Explanation

An anticline is a type of fold in structural geology that is arch-shaped, with the oldest rock strata located in the core and younger strata positioned on the outer flanks. In contrast, a syncline features younger rocks in its core with older strata on the outer limbs. Understanding these geological structures is essential for locating underground petroleum reserves and mineral deposits. Folds are created as tectonic forces compress the Earth crust, bending flat sedimentary layers.