Posted on 05/25/2021 12:21:58 PM PDT by BenLurkin
The emergence and disappearance of these archipelagos and "mega-islands" would also have been affected by the rise and fall of the sea level, controlled by glacial melt – something else the scientists modeled across a period of 1.5 million years.
Researchers factored seismic data collected from the region over the last 40 years into the calculations, as well as the current geography of the islands. The team was able to work backwards to the late Eocene period, matching island shorelines with the era when they would have emerged from the ocean.
"These periods of emergence may have favored the existence of episodic mega-islands and transient terrestrial connections between the Greater Antilles, the Lesser Antilles, and the northern part of the Aves Ridge (Saba Bank)," write the researchers.
"During the Pleistocene, archipelagos, and mega-islands formed repeatedly during glacial maximum episodes."
These land bridges are more common than you might think, existing for millions of years and then disappearing for millions more. There was once a connection between Russia and Canada, for instance, and between the UK and the rest of Europe.
While the idea of landmasses in the Antilles region has been proposed before, no one has looked in this much detail at this particular area. In the future, the researchers want to use the same techniques to extend their models southwards and cover the entire Caribbean Plate.
(Excerpt) Read more at sciencealert.com ...
“Did you come up with an answer as to why?”
If he had an answer he wouldn’t have to ask, would he! /s
Probably some great archeological sites on the other side of Guam.
People jumping in way over their heads tend to make a lot of noise.
There was a connection between Russia and Canada? Where was Alaska while that was happening?
There was a connection, but it happened sometime before there was Russia or Canada.
If you take the view that there was a connection between what is NOW Canada and Russia, you could argue that Alaska was recently part of Russia, so no need to get all unsettled about a lost puzzle piece.
That said, Ave Atque Vale And Good night!
NEWS FLASH!!!!!! Not only was there a land bridge between Russia and Alaska there were others too!
/s
No kidding. People get paid to study this? wow.
It was earmarked to become part of Russia under the appropriate political conditions? So it wasn't Alaska yet...
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