Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome occurs when viscous lava cools rapidly against glaciers?
A)Formation of steep-sided volcanic mesas✓
B)Extensive shield volcano development results
C)Development of layered sedimentary deposits
D)Erosion creates rounded and smooth terrain
💡 Explanation
Steep-sided volcanic mesas (tukurs) form because the rapid SURFACE cooling from glaciers induces COLUMNAR JOINTING within the viscous lava; therefore, rapid cooling causes steep mesa formation, rather than other volcanic landforms from slower effusion.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Geography →- Which outcome is amplified because of the Ekman spiral effect within deep coastal waters?
- Which mechanism accelerates barrier island submergence during increased storm frequency?
- Which enhanced outcome results when increased wave reformation focuses energy laterally between sea stacks?
- Which atmospheric process is directly driven by differential heating between equator and poles?
- Which outcome occurs when rapid groundwater extraction increases?
- Which outcome dominates when sand supply decreases substantially in dune fields?
