What Kind of Subduction Occurs When Old, Dense Lithosphere Sinks

question 29

Multiple Choice

What kind of subduction occurs when old, dense lithosphere sinks into the mantle by its own weight rather than by compressional force?

• A)Forced subduction
• B)Mantle plume subduction
• C)Spontaneous subduction
• D)Overriding subduction

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Definitions:

George McClellan

A Union general during the American Civil War known for his cautious tactics and failed 1864 presidential bid against Abraham Lincoln.

1864

A significant year during the American Civil War, marked by key battles and Union victories that helped to shape the outcome of the conflict.

Civil War

Refers to the American Civil War, a conflict between the Northern states (Union) and the Southern states (Confederacy) from 1861 to 1865, primarily over issues of slavery and states' rights.