Question

which process is depicted in the image below?

seafloor spreading
trench formation
island formation
seamount shredding

Explanation:

Analyze the visual evidence

Using the Seafloor Spreading and Mid-Ocean Ridge knowledge points

The diagram shows two plates of oceanic lithosphere moving apart, driven by upwelling magma and melting in the asthenosphere. This divergent boundary process creates new oceanic crust.

Evaluate the given options

Using the Seafloor Spreading knowledge point

• seafloor spreading: This matches the divergent movement and magma upwelling shown.
• trench formation: Occurs at convergent boundaries, not divergent.
• island formation: Typically associated with hotspots or subduction zones.
• seamount shredding: Not a standard geological process depicted here.

Answer:

• seafloor spreading (Correct answer)
• trench formation
• island formation
• seamount shredding