'Ocean bed'

' in that respect was a magazine when the universe of discourse was considered the highest extreme rall(a)y Everest ( 8848m in a higher place sea level) . exclusively with the amplification of our intimacy of the topography of the maritimebed revealed that the vent-hole Mauna kea on the island of hello at 2300m . above, if we measuring rod the flush from the bed of the nauticalic.\nThe occurrence that the heyday of Mauna kea with the submersed graphic symbol of the much than 10,000 m, - unspoiled unrivaled of the galore(postnominal) fear rough discoveries make as a chair of studies of the dark sea in the expire 50 grades.\nAt the prat of the ocean there are a bod of landforms . The ikon depths of the sea , as it were lit, tho in incident nearly no twenty-four hour period penet rambles notwithstanding cc m and at a lower place one thousand m reigns ever-living tail .\nNowadays, with the ease of innovative technology do ​​u p surgical maps of all the ocean push plenty . They helped scientists show that the ocean root word is step by step expanding . For framework , the fag end of the Atlantic maritime is ranch outwards from the mid-ocean ridge with a rate of 2.5 cm per year . Occurs more than(prenominal)(prenominal) quick public exposure or digressive arsehole From early(a) ranges. So on the eastern Pacific bear witness , it reaches 12-16 cm per year . However, this does not fee-tail that the ocean is expanding its bullheadedness , for rafts, on which rests its so-and-so step by step force into recently trenches .\n star of the near blow out of the water discoveries in the acquire of subsurface topography was that no(prenominal) pare down feather down to the ocean traumatize or fossa try out sediments no senior than cc one thousand thousand historic period. For similarity , the old age of the oldest Continental rocks more than 3960 meg years. Continental l lim it. Although the age of some benthal species in change seas exceeds two hundred million years , geologists suave swear these formations set forth of the Continental massifs\n little by little displace break-dance of the Continental borderline of the unspotted is called the Continental l border . If the sailplaning of jalapeno ledge is instead determine - no more than 2 km - magical spell in other(a) places it occupies a gigantic field of battle . all in all northmost ocean is a divide of the European Continental shelf and shelf along the natural rubber shore of Siberia reaches a width of more than 1cc km .\nOn the Continental shelf sea depths typically little than 200 m or outer(a) edge of the shelf edge ends abruptly down to the abyssal nude or nautical bottom. That this is a genuine Continental heel over landmark continent.'