Mantle minerals are characterized by stability under which conditions?

Mantle minerals are characterized by stability under which conditions?

• A. Low Temperature and Pressure
• B. High Temperatures and High Pressures
• C. Thin Atmosphere
• D. Surface Conditions

Answer: (B)

Mantle minerals are stable under high temperatures and high pressures found with depth inside the Earth. As you go deeper, both pressure and temperature rise, favoring mineral structures that are dense and can withstand intense heat. The thin atmosphere and surface conditions don’t apply to the mantle, where rock is already subjected to much higher pressures and temperatures. So the environment that best describes mantle mineral stability is high temperatures and high pressures.

Mantle minerals are stable under high temperatures and high pressures found with depth inside the Earth. As you go deeper, both pressure and temperature rise, favoring mineral structures that are dense and can withstand intense heat. The thin atmosphere and surface conditions don’t apply to the mantle, where rock is already subjected to much higher pressures and temperatures. So the environment that best describes mantle mineral stability is high temperatures and high pressures.