Which mechanism limits lateral spreading forces in effusive volcanic dome formation?

💡 Explanation

Silica polymerization increases lava viscosity inhibiting flow because entangled polymer chains raise the magma's internal friction; therefore, domes maintain steeper slopes rather than flattening through gravitational spreading as low-viscosity lava would.

• Which mechanism causes increased coastal subsidence during an earthquake along a subduction zone lacking sediment?
• Which geological feature is most directly shaped by strike-slip movement along a transform fault boundary?
• Which process most directly causes terrace formation in a river valley after alluvial deposition?
• Which horizon generation occurs because extensive leaching concentrates recalcitrant minerals during pedogenesis?
• Which risk increases when dune stabilization fails during drought?
• Which outcome results when oblique stress occurs along transform boundaries?