Which volcanic chain development results from divergent plate thinning?

💡 Explanation

A linear volcanic chain arises due to decompression melting, because lithospheric thinning causes the asthenosphere to rise and partially melt via adiabatic decompression. This forms volcanoes along the divergent boundary, therefore a chain perpendicular to the plate motion results, rather than arcs associated with subduction.

• Which outcome increases within a closed-basin lake when evaporation dominates inflow?
• Which phenomenon causes poleward heat transport within Earth's atmosphere?
• Which process causes increased wave energy behind a barrier island during rising sea level?
• Which effect results when approaching air masses deflect in the northern hemisphere due to planetary vorticity?
• Which influence prevents speleothem formation after cave flooding?
• Which outcome is exacerbated when groundwater pressure increases within fault zones?