Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome occurs when a subducting plate hydrates mantle peridotite?
A)Decreased mantle melting point✓
B)Increased frequency of deep earthquakes
C)Faster plate boundary propagation
D)Reduced volcanic arc formation
💡 Explanation
A lower melting point occurs because the addition of water via the mechanism of flux melting lowers the solidus temperature of the mantle. Therefore, melting initiates at lower temperatures, rather than only at areas of high heat by decompression melting from uplift.
🏆 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 occurs when hydraulic conductivity increases locally in soil?
- Which pedological outcome develops via capillary action in loess?
- Which volcanic outcome increases following increased subduction rate?
- Which outcome is typically observed within volcanic lava domes undergoing cooling?
- Which outcome occurs when groynes impede drift alongshore?
- Which consequence results when a barrier island chain is destabilized by increased storm surge frequency?
