In structural geology, an arched fold in which the oldest strata are located in the core and the limbs dip away from the axis is termed a:

💡 Solution & Explanation

An anticline is an upward-arching fold with older strata exposed near its central core and limbs sloping downward away from the axis. Synclines exhibit the exact opposite geometry, holding younger strata at their core. These fold structures form due to compressional tectonic forces within the Earth crust.