3 ms·

I don't think it has anything to do with that. The water in these zones is seawater convecting down, then up, through the hot rock.

• westurner 2y ago
  So, unknown what's between 410km and these hydrothermal vents at 3km (3020m)?
  • pfdietz 2y ago
    I didn't say that, it's just that it isn't relevant.
    • westurner 2y ago
      In your opinion, a subsurface ocean is not relevant to hydrothermal vents.
      • pfdietz 2y ago
        Not one so deep, no.