What is a deep sea trench? - Search
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  1. Deep-sea trench | Oceanography, Geology & Marine Life

    • deep-sea trench, any long, narrow, steep-sided depression in the ocean bottom in which occur the maximum oceanic depths, approximately 7,300 to more than 11,000 metres (24,000 to 36,000 feet)… See more

    Types

    Deep-sea trenches generally lie seaward of and parallel to adjacent island arcs or mountain … See more

    Britannica
    Structure

    Deep-sea trenches and their approaches are striking features on the ocean floor. In general, the cross sections of deep-sea trenches are V-shaped with steeper landward si… See more

    Britannica
    Origin of deep-sea trenches

    Geophysical data provide important clues concerning the origin of trenches. No abnormalities in the flow of internal Earth heat or variations in the Earth’s magnetic field occur … See more

    Britannica
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  2. Ocean Trench - Education

     
  3. The Deepest Oceanic Trenches In The World - WorldAtlas

  4. Mariana Trench | Depth, Location, Facts, Maps, & Pictures

  5. Oceanic trench - Wikipedia

  6. Ocean Trenches - Woods Hole Oceanographic Institution

    Nov 7, 2019 · What are ocean trenches? Ocean trenches are steep depressions in the deepest parts of the ocean [where old ocean crust from one tectonic plate is pushed beneath another plate, raising mountains, causing earthquakes, and …

  7. Ocean Trenches: The Deepest Regions on Earth - ThoughtCo

  8. deep-sea trench summary | Britannica

  9. How Do Ocean Trenches Form? - WorldAtlas

  10. Mariana Trench - Wikipedia

    The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km …

  11. How the Mariana Trench Became Earth's Deepest Point

  12. The Mariana Trench - the deepest place in the oceans ...

  13. The Deep Sea - Smithsonian Ocean

  14. The Mariana Trench Is 7 Miles Deep: What’s Down There?

  15. How Do Ocean Trenches Form? Learn the Secrets of the Deep Sea

  16. Geography of the Sea | Deep ocean trenches - Extreme Science

  17. Mariana Trench and Challenger Deep: 6 facts about the oceanic …

  18. Oceans' extreme depths measured in precise detail - BBC News

  19. What is the “deep” ocean? - NOAA Ocean Exploration

  20. Unexpected Life Found In The Ocean's Deepest Trench

  21. Mapping, listening at the bottom of the sea - NOAA Research