Krylov Seamount
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| Krylov Seamount | |
|---|---|
 | |
  Krylov Seamount Krylov Seamount (North Atlantic) | |
| Summit depth | 1,240 metres (4,070 ft) |
| Location | |
| Coordinates | 17°31′N 30°07.5′W / 17.517°N 30.1250°W[1] |
Krylov Seamount (also known as Albatross Seamount[2] or Krylou Seamount[3]) is a volcanic seamount in the Atlantic Ocean, west of the Cape Verde islands. It is formed by one seamount and one ridge which are separated by a 5 kilometres (3.1 mi) wide depression, and it rises to a minimum depth of 1,240 metres (4,070 ft); formerly the depression was interpreted to be a caldera. The seamount probably formed no later than 70-75 million years ago before sinking to its current depth.
The seamount was discovered in 1981 by a Russian research ship and named after the Russian naval engineer and mathematician Aleksey Krylov.[2]
Geography and geomorphology
Krylov Seamount lies 300 kilometres (190 mi)[1] west of the Cape Verde islands[4] in the Cape Verde Basin[5] of the East Atlantic,[6] at a water depth of 4,600–4,700 metres (15,100–15,400 ft); the highest point lies at 1,270 metres (4,170 ft)[7] and the seamount rises about 3,200 metres (10,500 ft) above the seafloor.[8] It is an elongated volcano that consists of an eastern summit at about 1,240 metres (4,070 ft) depth ("Krylov Seamount" proper), separated from a 15–20 kilometres (9.3–12.4 mi) western ridge ("Krylov Ridge") by a 5 kilometres (3.1 mi) wide depression.[9] Formerly, the whole seamount was interpreted to be an apparently volcanic breccia-filled[1] summit caldera[7] plus three separate summits sharing a common pedestal at 2,500–2,600 metres (8,200–8,500 ft) depth. The terrain of the seamount is covered by organic debris, which with depth gives way to pillow lavas;[10] marine sediments cover much of the outer slopes of the seamount.[1] The seafloor under Krylov is about 95 million years old.[11]