Which outcome is documented in the causal chain Oceanic lithosphere subducts beneath another plate. -> Fluids from the descending slab lower the melting point in the mantle wedge. in the subduction chain at convergent plate boundaries scope?

Answer options

• Option: fold mountain range
  "fold mountain range" vs. "volcanic arc" A fold mountain range remains an; misses the target mapping. fold mountain range remains in chain scope subduction chain at convergent plate boundaries. The task targets this mapping, so fold mountain range remains wrong in this prompt. fold mountain range shares 2 documented chain claims.
• Option: rift valley
  "rift valley" vs. "volcanic arc" A rift valley remains a tectonic; misses the target mapping. rift valley remains in chain scope subduction chain at convergent plate boundaries. The task targets this mapping, so rift valley remains wrong in this prompt. rift valley shares 2 documented chain claims.
• Option: impact crater
  "impact crater" vs. "volcanic arc" An impact crater is a geological; misses the target mapping. impact crater remains in chain scope subduction chain at convergent plate boundaries. The task targets this mapping, so impact crater remains wrong in this prompt. impact crater shares 2 documented chain claims.
• Correct: volcanic arc
  "volcanic arc" - target A volcanic arc is documented as the outcome of subduction,. volcanic arc remains in chain scope subduction chain at convergent plate boundaries. The task targets this mapping, and volcanic arc remains correct in this prompt. volcanic arc shares 3 documented chain claims.

Solution

volcanic arc

source qualification qualified geoscience source; not chronology-only. The prompt targets volcanic arc, so the graph keeps this mapping stable against close alternatives. Source: Wikidata. As of: 2026-02-13.

Fun fact

causal_chain requires documented cause, event, and outcome; mere before-after proximity is not enough. volcanic arc carries the additional dataset detail subduction chain at convergent plate boundaries. The graph therefore uses a multi-hop graph path.