Subduction

{
  "id": "MLC-T-OAG-003670",
  "term": "Subduction",
  "field": "Oil and gas",
  "definition": "The process at a convergent plate boundary in which one plate slides beneath another and sinks into the mantle, building deep oceanic trenches, volcanic arcs and mountain belts. Water released from the sinking slab lowers the melting point of the overlying mantle wedge, so the magma that feeds arc volcanoes forms there. Subduction zones generate the largest earthquakes recorded, such as the magnitude 9.5 Chile event of 1960.",
  "subject": "Geology",
  "url": "https://mlchart.com/terminology/oil-and-gas/subduction/"
}