Tectonic Trench

{
  "id": "MLC-T-ENV-027749",
  "term": "Tectonic Trench",
  "field": "Environment",
  "definition": "1. A narrow, elongate depression of the deep seafloor associated with a subduction zone. These can be oriented parallel to a volcanic arc and are commonly aligned with the edge of the adjacent continent, between the continental margin and the abyssal hills. Trenches are commonly greater than 2 kilometers deeper than the surrounding ocean floor, and they may be thousands of kilometers long.\n\n2. An oceanic trench is a linear depression of the sea floor caused by the subduction of one plate under another.",
  "references": [
    "Federal Geographic Data Committee Coastal and Marine Ecological Classification Standard, June 2012 FGDC-STD-018-2012",
    "USGS Earthquake Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/tectonic-trench/"
}