Which outcome occurs because of cyclical magma buoyancy increase near a subduction zone?

💡 Explanation

Episodic volcanism arises from magma buoyancy modulation. Increases drive magma pulses leading to variations in eruption intensity, because magma episodically ascends via buoyancy. Thus, shifts occur rather than steady eruptions or immediate crater formation.

• Which risk increases when extensive groundwater depletion weakens karst bedrock?
• Which mechanism accelerates the formation of 'a'ā lava flows?
• Which outcome occurs when glacial retreat exposes extensive loess deposits to fluvial erosion?
• Which consequence results when sediment accretion ceases along coastlines?
• Which outcome increases risks to structures built along a fault line running through alluvial deposits undergoing increased seismic activity?
• Which outcome increases proximal fault stress when stick-slip behavior occurs?