GEOLOGY

Detailed explanation-1: -A divergent boundary may form beneath the continental lithosphere, where mantle convection cells cause the plates to push apart and form a Rift Valley.

Detailed explanation-2: -Many rift valleys are part of “triple junctions, ” a type of divergent boundary where three tectonic plates meet at about 120° angles.

Detailed explanation-3: -tectonic activity creates rift valleys The valleys form when continental crust is pulling apart allowing the land to drop down between parallel faults. These valleys also form when oceanic plates are moving apart forming a divergent boundary.

Detailed explanation-4: -Rifting is defined as the splitting apart of a single tectonic plate into two or more tectonic plates separated by divergent plate boundaries. The rifting of a continental tectonic plate creates normal fault valleys, small tilted block mountains, and volcanism.

Detailed explanation-5: -A divergent plate boundary on land rips apart continents (Figure below). When plate divergence occurs on land, the continental crust rifts, or splits. This effectively creates a new ocean basin as the pieces of the continent move apart.