Ocean bank

Ocean banks may be of volcanic nature. Banks may be carbonate or terrigenous. In tropical areas some banks are submerged atolls. As they are not associated with any landmass, banks have no outside source of sediments. Carbonate banks are typically platforms, rising from the ocean depths, whereas terrigenous banks are elevated sedimentary deposits. Seamounts, by contrast, are mountains rising from the deep sea and are steeper and higher in comparison to the surrounding seabed. Examples of these are Pioneer and Guide Seamounts, west of the Farallon Islands. The Pioneer Seamount has a depth of 1,000 meters, ==Prominent banks==

The largest banks in the world are: • Grand Banks of Newfoundland (280,000 km2) - terrigenous bank • Agulhas Bank (116,000 km2) • Great Bahama Bank (95,798.12 km2, has islands, area without islands) • Saya de Malha (35,000 km2, excluding the separate North bank, least depth 7 m) • Seychelles Bank (31,000 km2, including islands of 266 km2) • Georges Bank (28,800 km2) - terrigenous bank • Lansdowne Bank (4,300 km2, west of New Caledonia, least depth 3.7 m) • Dogger Bank (17,600 km2, least depth 13 m) • Little Bahama Bank (14,260.64 km2, has islands, area without islands) • Great Chagos Bank (12,642 km2, including islands of 4.5 km2) • Reed Bank, Spratly Islands (8,866 km2, least depth 9 m) • Caicos Bank, Caicos Islands (7,680 km2, including islands of 589.5 km2) • Macclesfield Bank (6,448 km2, least depth 9.2 m) • North Bank or Ritchie Bank (5,800 km2, north of Saya de Malha, least depth 2, including islands of 14.87 km2) • Rosalind Bank (4,500 km2, least depth 7.3 m) • Bassas de Pedro (2,474.33 km2, least depth 16.4 m), part of the Amindivi Subgroup of Lakshadweep, India ==See also==