Atlantis: Geological Hypothesis

Atlantis: Geological Hypothesis

Atlantis, on the off chance that it existed, would have been the consequence of crustal collapsing as the Africa plate endeavored to subduct underneath the Eurasian in the North Atlantic. The northward development of the Africa plate made a subduction zone the whole way across its fringe with the Eurasian plate. Roughly 50 million years prior, something made harm the plate limit in the region of what is presently the Azores submerged level. This harm made an obstruction to subduction locally. All northward development by the Africa plate, here, was changed over into crustal collapsing.

A few million years after the fact, as indicated by R. Searle (1980), another unique limit was made. The shared limit amongst Africa and Eurasia is to a great extent east-west in bearing. This new extend of limit, called the Terceira Ridge, is toward the Northwest. Something happened. The Africa plate began moving in an alternate heading.

This Terceira Ridge in the West is a unique limit (likewise called a "spreading focus," like the mid-Atlantic Ridge). More distant east before Gibraltar, the limit is at present just somewhat and discontinuously concurrent. Past Gibraltar, in the Mediterranean, the limit turns out to be intensely concurrent. The example is clear. The Africa plate is turning far from Eurasia in the West, and toward it in the East. Be that as it may, why?

Around 36 million years prior, the Africa plate could no more push against the region of limit harm. The mountains made there had jabbed over the sea surface, making an island. With an enduring hindrance at the new Atlantis, yet with proceeded with subduction more distant east, the main result would be one of pivot - avoided around the obstruction. With this new example of plate development, the direct backing of the new mountains was pulled back. The new rakish movement around the range of limit harm bit by bit would have debilitated those mountains, bringing on the island to separate throughout the following a few million years.

There is substantially more to this geographical story. A great part of the confirmation can't be incorporated into this short article. Quickly, the harm was not limited to the range of Atlantis, but rather made burdens crosswise over North Africa, severing a bit of the plate, making the new Arabia plate, and shaping the Great Rift Valley, still during the time spent arrangement today. A large number of years after the new pivot had begun, the harm had crawled along the plate limit toward Gibraltar and brought about its inevitable conclusion. For about a million years, the Mediterranean was cut off from the seas of the world and went away. This was the Messinian Salinity Crisis - 5.9 - 5.2 million years prior. Also, for a spell, Atlantis was a landmass of Europe and Africa.

discoveries 2016