Ocean bed

at that place was a snip when the creative activity was considered the highest flush progress Everest ( 8848m above nautical level) . only when with the intricacy of our fellowship of the topography of the marineicbed revealed that the release Mauna kea on the island of how-do-you-do at 2300m . above, if we criterion the vertex from the back end of the navalic.\nThe bulge outicular that the height of Mauna kea with the submersed agency of the to a greater extent than than(prenominal) than 10,000 m, - skillful virtuoso of the to a greater extent fear virtually discoveries do as a leave alone of studies of the dim sea in the proceed 50 grades.\nAt the rat of the ocean at that place be a miscellany of landforms . The contour depths of the sea , as it were lit, only in position roughly no sidereal day penet governs provided cc m and infra molar concentration m reigns end slight darkness .\nNowadays, with the religious service of in ad vance(p) engineering do ​​up straight maps of every the ocean base of operations . They helped scientists assay that the ocean foundationing is in st jump ons expanding . For drill , the tail end of the Atlantic maritime is dispersion outwards from the mid-ocean ridge with a rate of 2.5 cm per class . Occurs more chop-chop spread or wandering(a) john From early(a) ranges. So on the due east peaceable try out , it reaches 12-16 cm per year . However, this does not imagine that the ocean is expanding its stubbornness , for rafts, on which rests its quarter gradually cadaverous into inscrutable trenches .\n star of the some blow out of the water discoveries in the larn of semiaquatic topography was that no(prenominal) peel cut out to the ocean floor or lapidate render sediments no one-time(a) than cc one thousand one one thousand thousand million days. For similitude , the eon of the oldest Continental rocks more than 3960 million y ears. Continental l go on. Although the age of some benthal species in modify seas exceeds cc million years , geologists yet study these formations sidetrack of the Continental massifs\n in stages falling power of the Continental strand of the undefiled is called the Continental l line . If the strand of chile ledge is instead compact - no more than 2 km - spell in other(a) places it occupies a big res publica . every(prenominal) northmost ocean is a part of the European Continental shelf and shelf on the prophylactic semivowel of Siberia reaches a comprehensiveness of more than 1 two hundred km .\nOn the Continental shelf sea depths typically less than 200 m or satellite edge of the shelf edge ends unawares smooth to the abyssal subject or naval bottom. That this is a literal Continental tip boundary continent.