Which volcanic outcome from Iceland's glaciers melting occurs from isostatic rebound?

💡 Explanation

Increased eruption frequency occurs due to decreased pressure on the mantle; therefore, isostatic rebound triggers decompression melting, because the removal of ice mass reduces lithostatic pressure rather than altering magma properties during fractional crystallization.

• Which mechanism drives the observed periodic changes in global thermohaline circulation strength?
• Which downslope movement results when permafrost thaws and the active layer loses shear strength?
• Which outcome is driven when the Juan de Fuca plate subducts?
• Which mechanism causes caldera formation after a Plinian eruption in a stratovolcano?
• Which outcome develops when cohesive properties saturate alluvial soil?
• Which outcome is accelerated when levee construction reduces floodplain extent?