TY JOUR TI On spreading of Antarctic Bottom Water in fracture zones of the Mid-Atlantic Ridge at 7–8°N KW Antarctic Bottom Water KW Mid-Atlantic Ridge KW fracture zones KW bottom topography KW multibeam echo sounding KW potential temperature JO Russian Journal of Earth Sciences AU Dudkov, I.Y. AU Kapustina, M.V. AU Sivkov, V.V. PY 2022 IS 22 PB Geophysical Center of the Russian Academy of Sciences