Question

The Gutenberg discontinuity is located at:

• A. boundary between the Earth's crust and mantle
• B. within the mantle zone
• C. boundary between the Earth's mantle and core
• D. within the core zone

Hint:

Gutenberg = mantle-core boundary; S-waves stop here due to liquid outer core.

Answer 1

The Correct Option is C

The Gutenberg discontinuity is the boundary between the Earth's mantle and outer core, occurring at a depth of approximately 2,900 km. It is identified by a sudden change in seismic wave velocities—S-waves disappear as they cannot travel through the liquid outer core.