A fold that arches upward with the rocks dipping away from the center, where the oldest rocks are at the center and the youngest are draped over them.

A fold that bends downward, with the youngest rocks located at the center and the oldest rocks at the outer edges.

A geological structure formed when molten rock and gas escape from a magma chamber, often resulting in mountains and craters.

A type of volcanic structure that is large and dome-shaped, formed by the flow of low-viscosity lava, typically resulting in gentle slopes.

A geological feature formed by the movement of crustal blocks that slide up and down along faults, resulting in alternating elevations of mountains and valleys.

A geological process where one tectonic plate sinks beneath another, leading to the formation of features like volcanoes and mountain ranges.

A type of fold that remains horizontal except for a simple bend in the rock layers, resulting in a minor change in elevation.

The geological feature characterized by a series of volcanic islands formed by the subduction of an oceanic plate beneath another oceanic  plate.

The type of volcanic eruption characterized by the explosive release of gas and ash due to high viscosity lava.

Which type of volcano is formed primarily from the accumulation of volcanic ash and small fragments of lava, typically resulting in a steep, conical shape?