• CitizenKong@lemmy.world
    link
    fedilink
    arrow-up
    9
    arrow-down
    1
    ·
    10 months ago

    Also, wouldn’t water erosion make them less deep not more, due to generally smoothing the stone?

    • HonoraryMancunian@lemmy.world
      link
      fedilink
      arrow-up
      3
      arrow-down
      1
      ·
      10 months ago

      Maybe water pools in them long after it dries out on the surrounding brick, but whether still water still erodes stone I don’t know.