Which process limits magma dome steepness during effusive eruptions?

💡 Explanation

Viscosity-limited spreading caps dome slope because magma viscosity resists flow under gravity; the resultant topography diffuses outward, rather than steepening. Dome steepness is therefore viscosity-controlled, rather than dictated by purely external forces or alteration processes.

• Which soil consequence results when increased water runoff accelerates weathering?
• Which effect accelerates longshore drift when approaching headlands?
• Which outcome follows when cooled lava contracts in the Earth's crust?
• Which volcanic outcome on island arcs happens from decompression?
• Which pedogenesis rates outcome results from impeded drainage?
• Which risk increases for alpine glaciers facing foehn wind patterns?