Which factor most increases isostatic rebound rates in fjord regions post-glaciation?

💡 Explanation

When ice sheets melt, isostatic rebound occurs because the reduced load causes buoyant uplift in the Earth's crust, mediated by mantle flow; lower mantle viscosity allows faster crustal response. Therefore mantle viscosity influences rebound rates, rather than erosion, remaining ice cover, or ocean thermal expansion which have secondary effects.

• Which consequence results when melting permafrost underlies pipelines?
• Which slope instability outcome is driven by solifluction?
• Which mechanism causes strong regional uplift during flat-slab subduction?
• Which process dictates glacial lake outburst floods depositing poorly-sorted material downstream in many mountainous regions?
• Which outcome reduces coastal wetland health when sand accumulates?
• Which outcome results when increased wave refraction focuses energy onto pre-existing coastal sea stacks composed of weaker sedimentary rock?