Which outcome occurs when magma buoyancy exceeds lithospheric strength?

💡 Explanation

When buoyant magma overcomes lithospheric strength, magma diapirism pushes the magma to the surface forming a volcano; because volcanic eruptions occur, rather than subduction that would require convergent plate boundaries or metamorphism from pressure.

• Which downslope movement results when permafrost thaws and the active layer loses shear strength?
• Which process primarily dictates sediment sorting along coastlines during longshore drift?
• Which mechanism causes stepped topography to form along the valley floor downstream of a cirque?
• Which process drives the abyssal circulation pattern in the deep ocean?
• Which process degrades lagoon habitat behind barrier islands?
• Which mechanism causes higher salinity in terminal lakes located in arid regions?