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Which geological process creates new oceanic crust at mid... | QuestionStock

Representative image for question: Which geological process creates new oceanic crust at mid-ocean ridges?

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Which geological process creates new oceanic crust at mid-ocean ridges?

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Which geological process creates new oceanic crust at mid-ocean ridges?

Options:

Sea-floor spreading (basaltic upwelling)
Subduction
Transform faulting
Lithification

Correct answer: Sea-floor spreading (basaltic upwelling)

Explanation: Sea-floor spreading occurs as basaltic magma wells up at mid-ocean ridges and solidifies into new crust; typical spreading rates range from about 2 to 15 cm per year.

Created 2026-03-10T17:17:33.430Z. Updated 2026-03-10T17:17:33.430Z.