Which outcome occurs when rising mantle plumes encounter lithospheric thinning?

💡 Explanation

Flood basalt provinces form because decompression melting creates large magma volumes via mantle plume upwelling combined with thinned lithosphere; therefore basalts erupt rather than stratovolcanoes because crust doesn't support viscous magma buildup.

• Which mechanism causes increased cirque erosion following deglaciation?
• Which mechanism limits the poleward extent of Hadley cells in Earth's atmosphere?
• Which mechanism causes increased coastal upwelling during La Niña conditions?
• Which process amplifies stream downcutting when tectonic uplift increases erosion rate?
• Which feedback results when volcanic tephra deposition increases albedo?
• Which outcome occurs when 'regelation' inhibits ice flow within a cirque?