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A lost world in the Atlantic ocean?

  1. Jul 11, 2011 #1

    (Courtesy NileQueen)

    It's not the first time to discover land under the ocean, anybody remember the lost city Mega in Cuba? There is another interesting element here, 56 million years. Remember what happened 55 million years ago? Could there be a relation?
    Last edited by a moderator: Apr 26, 2017
  2. jcsd
  3. Jul 12, 2011 #2
    Anyway that was the Paleocene Eocene Thermal Maximum 55 million years ago, characterized by large changes in geologic processes, especially in the oceans, also with unexplained deposits, like tropical algae and fern remains in the Arctic.

    I guess it's a taboo subject but when suddenly http://www.natureasia.com/en/highlights/details.php?id=1340 starts to relate, that would make one wonder about what really happened.


    Meanwhile I received the paper, here is the abstract

    Ross A. Hartley, Gareth G. Roberts, Nicky White, Chris Richardson (2011) Transient convective uplift of an ancient buried landscape DOI: 10.1038/NGEO1191 NATURE GEOSCIENCE, ADVANCE ONLINE PUBLICATION 11 July 2011

    Now isn't that interesting and maybe supportive of an old PET(M)-idea here?
    Last edited by a moderator: Apr 26, 2017
  4. Jul 12, 2011 #3


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    There were some (that might called suspicious) Russians who produced side-scan sonar images of orthogonal structures on the seafloor off Cuba. I don't know if this has ever been confirmed or resolved. Long ago I read Plato and Donnelly in the hopes something might eventually be discovered. Since then I've come to regard such literature more as cautionary parables.

    I'm interested Earth's history and geology, as well as old legends. What old idea did you have in mind?

  5. Jul 12, 2011 #4
    We had threads about this here (now locked), you can find them searching for 'cuba' and 'mega' using the "search this forum" feature top right in the main page of the earth forum.

    Since nobody has ever exposed anything yet (as far as I know), rather then that there was some confirmation from scientific sides, I don't think there is any reason to add labels like 'suspicious'. Time for the mythbusters to investigate.

    You can also find locked threads about that, searching for PETM, the essential thing is thinking about a tectonical cause, rather than a paleoclimatologic one. And obviously this is all about tectonics.
    Last edited: Jul 12, 2011
  6. Jul 12, 2011 #5
    Don't forget 'Doggerland'... http://en.wikipedia.org/wiki/Doggerland

    Similar factors apply to a lot of the *shallow* continental shelves. But, takes a mantle plume or 'blip' to lift deeper zones to the surface.

    Hmm: About 50~~60 mya, the North Atlantic was still opening, and the young, warm sea-bed would have been comparatively buoyant. As it cooled, it would have subsided, taking the adjacent continental margin down again. So, no surprise there, and certainly no Atlanteans...
    http://museum.gov.ns.ca/fossils/geol/globe.htm [Broken]
    Last edited by a moderator: May 5, 2017
  7. Jul 12, 2011 #6
    And of course there is The North Sea, which was dry land less than 10,000 years ago, which yields a lot of megafaunal fossils, but that is not a tectonic issue.

    Here is another underwater landscape. Newly discovered volcanoes near Antarctica. Age has not been estimated yet. It is an undersea chain of islands.

    edit: Doggerland is also North Sea, but I am thinking of the trawlers that go out from Urk and bring back fossils.
    I think they trawl the Brown Bank.
    Last edited: Jul 12, 2011
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