Oceanic ridge
An oceanic ridge is an underwater mountain range. Atlantic-Indian Ridge[?] East Pacific Rise[?] Emperor Seamounts Hawaiian Ridge[?] Kerguelen Plateau[?] Mid-Atlantic Ridge Mid-Indian Ridge[?] Nazca Ridge[?] Pacific-Antarctic Ridge[?] Reykjanes Ridge[?] Bermuda Rise[?] Rockall Rise[?] Southeast Indian Rise[?] Southwest Indian Ridge[?] Walvis Ridge[?]