At what temperature does lava viscosity reduce to cause accelerated lateral lava flow rates?

💡 Explanation

Silica polymerization controls magma viscosity; therefore, as temperature rises and this threshold is met, polymerization decreases because silicate chains depolymerize, rather than any pressure overcoming the material's rigidity or any saturation point within convection.

• Which mechanism most directly causes detachment of sea stacks?
• Which process drives abyssal ocean circulation when surface water cools and increases in salinity?
• Which change arises if arid region soils experience increased rainfall?
• Which mechanism causes higher salinity in terminal lakes located in arid regions?
• Which outcome arises when excessive development restricts floodplains near levees?
• Which outcome results when insolation variability weakens the equatorial temperature gradient?