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Sunken Continents versus Continental Drift

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Author Topic: Sunken Continents versus Continental Drift  (Read 3814 times)
Carolyn Silver
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« Reply #15 on: July 28, 2008, 11:22:43 pm »

As stated in theosophical literature, 'hidden deep in the unfathomed ocean beds' there may be 'other, far older continents whose strata have never been geologically explored' [18].
    Some islands have apparently sunk as recently as late Pleistocene time. For instance, M. Ewing reported prehistoric beach sand in two deep-sea core samples brought up from depths of 3 and 5.5 km on the Mid-Atlantic Ridge, over 1000 km from the coast. In one core there were two layers of sand which were dated, on the basis of sedimentation rates, at 20,000-100,000 years and 225,000-325,000 years [19]. R.W. Kolbe reported finds of numerous freshwater diatoms in several cores on the Mid-Atlantic Ridge, over 900 km from the coast of Equatorial West Africa. He stated that one possible explanation is that the areas concerned were islands 10-12,000 years ago, and the diatoms were deposited in lake sediments which later sank beneath 3 km of seawater. He argued that this was far more plausible than the theory that turbidity currents had carried the diatoms 930 km along the sea bottom then upwards more than 1000 km to deposit them on top of a submarine hill [20]. The Atlantis seamount, located at 37°N on the Mid-Atlantic Ridge, has a flat top at a depth of about 180 fathoms, covered with cobbles or current-rippled sand. About a ton of limestone cobbles was dredged from its summit, one of which gave a radiocarbon age of 12,000 +/- 900 years. According to B.C. Heezen and his colleagues, the limestone was probably lithified above water, and the seamount may therefore have been an island within the past 12,000 years [21].
    According to modern theosophy, Poseidonis -- Plato's 'Atlantis' -- was an island about the size of Ireland, situated in the Atlantic Ocean opposite the strait of Gibraltar, and sank in a major cataclysm in 9565 BC [22]. Former exploration geologist Christian O'Brien believes that Poseidonis was a large mid-Atlantic ridge island centred on the Azores [23]. By contouring the seabed, he found that the Azores were separated and surrounded by a net of submarine valleys that had all the hallmarks of having once been river valleys on the surface. He concluded that the island had originally measured 720 km across from east to west, and 480 km from north to south, with high mountain ranges rising over 3660 metres above sea level. Before or during its submergence, it tilted by about 0.4° with the result that the south coast sank about 3355 metres but the north coast only some 1830 metres. Only the mountain peaks remained above the waters, and now form the ten islands of the Azores. O'Brien thinks the island could have sunk within a period of a few years or even months, and points out that six areas of hot spring fields (associated with volcanic disturbances) are known in the mid-Atlantic ridge area, and four of them lie in the Kane-Atlantis area close to the Azores. Further surveys and core samples are required to test O'Brien's hypothesis.

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