Copied from Azores talk page
- http://www.texasbeyondhistory.net/coast/prehistory/images/sea-level.html - Sea level 200-300 ft lower 10,000B.C. than today. 6,500 B.C. sea levels rise. Some coastlines are 50-100 miles farther.
- http://phys.org/news/2013-06-mega-quakes-volcanoes.html - Sidelight12 Talk 13:44, 1 July 2013 (UTC)
- http://phys.org/news/2012-02-atlantis-volcano-mega-eruptions.html - Sidelight12 Talk 14:02, 1 July 2013 (UTC)
- http://phys.org/news/2011-05-atlantic-resting-.html - Sidelight12 Talk 14:20, 1 July 2013 (UTC)
How far below sea level is the Azores Plateau? How much lower were sea levels 10,000B.C. or even 5,000B.C.? Is there a record of a landslide or tsunami in the Atlantic? Sidelight12 Talk 01:38, 21 June 2013 (UTC)
LGM and Gulf Stream
I'd rather not make unexpected changes to the page, therefore I'm putting this into the discussion page.
Further to the Azores hypothesis, I believe you are overlooking a couple supporting points:
1) The weight of the glaciers on the continents. Consider the glacial mass of a 2-4 km of ice on top of Canada, the Great Lakes and New England regions of the US, Northern Europe, Northern Russia, and Northwest Siberia. This is equivalent to an ocean on top of the northern continents. Additional glacial weight would have been exerted on the southern Andes, and on mountains throughout the world. Here are a couple maps of the northern hemisphere during the Last Glacial Maximum circa 22,000 YA, and the relevant Wikipedia page:
2) Please note the glaciation was focused on the North Atlantic / North Sea region. This indicates that something was disrupting the Gulf Stream. Here's a couple maps of the stream-flow, and the relevant Wikipedia page:
Without the warm waters of the Caribbean reaching the Northern Atlantic, Europe would freeze, and the flow of frigid waters from the Labrador Sea would freeze the Atlantic coast of North America as far south as New York. Iceland is a large igneous province created by a plume (essentially a super-volcano) not a continental fragment, therefore if it was covered in a glacier several kilometres thick, it should sink under the weight. Magmatic displacement from both Iceland, and the continents to the east and west of the North Atlantic would have placed stress on the Mid-Atlantic Rise (MAR), as well as other volcanically active areas. Consider the information in the following article:
While the article is about super-volcanoes in general, the information is relevant to the MAR. If molten rock accumulated under the MAR its buoyancy would simply lift the MAR, as region only has water above it, which is both lighter than continental rock, and easily displaced.
Conclusion: Atlantis' rising and falling could be the cause of the repeated glaciations of the last few million years.