Which outcome amplifies effusive volcanism around shield volcanoes?

💡 Explanation

Increased magma supply amplifies volcanism because mantle plume decompression melting creates higher melt volumes; therefore effusive eruptions intensify,rather than sporadic or explosive eruptions which instead relate to higher magma viscosity or volatile content.

• Which consequence results when rapid groundwater withdrawal accelerates?
• Which mechanism influences the orientation of cirques during glacial formation on a large mountain range?
• Which phenomenon causes mantle upwelling beneath the overriding plate where an oceanic plate subducts at an increasing angle?
• Which erosional process is accelerated when freeze-thaw cycles occur within a cirque formation?
• Which mechanism causes thermocline formation after prolonged solar radiation on a freshwater lake with low turbidity?
• Which outcome mainly occurs when soil colloids destabilize?