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 tropical rainfall near the equator?
• What geological outcome can be observed as soluble minerals are removed via percolating rainwater in soil?
• Which consequence results when barrier island sediment reservoirs deplete?
• Which consequence results when wind-deposited loess deposits experience prolonged saturation?
• Which mechanism causes rhyolitic magma formation at continental volcanic arcs?
• Which geologic outcome results from repeated rupture along a transform fault boundary located beneath a shallow ocean?