Which sequence correctly represents the order of stages in the Wilson cycle?

• A. Rifting, spreading, subduction, collision
• B. Subduction, collision, rifting, spreading
• C. Spreading, rifting, collision, subduction
• D. Collision, rifting, spreading, subduction

Answer: (A)

The sequence tests how an ocean basin forms and then closes. It begins with rifting, where a continent stretches and splits, thinning the crust. As rifting progresses, seawater spills in and seafloor spreading creates new oceanic crust, widening the ocean basin. Over time, the aging oceanic crust is consumed at subduction zones, causing the basin to shrink and eventually close. When the basin shuts, the continental margins collide and mountain belts form from the compression. So the correct order is rifting, spreading, subduction, collision.