Posted on 05/09/2019 12:57:57 PM PDT by ETL
In their research, the scientists point to an earthquake that occurred off the coast of Portugal in 1755, which destroyed the city of Lisbon, and a 7.9-magnitude quake that struck the Portuguese capital in 1969.
Duarte describes the newly-found structure in the tectonic plate as a very good candidate for the source of these events.
The 20 upper kilometers [12.4 miles] of the plate is made of soft rocks that are light and the bottom is dense and heavy (because the plate is very old, more than 100 million years), Duarte told Fox News.
This causes this lower part to detach from the upper part and sink in the mantle by the pull of gravity," he added, noting that the process is aided by the infiltration of water that softens the upper part of the plate. ..."
As for a shrinking Atlantic Ocean, Duarte noted that oceans are born, and then spread, before eventually closing to form a new supercontinent, in what is known as the supercontinental cycle.
The Atlantic, for example, was formed from the breakup of the supercontinent Pangea, then spread to assume its current form.
It makes sense that a new supercontinent will form in the future as the result of the closing of the Atlantic, Duarte added.
Estimates suggest that the new supercontinent, Pangaea Proxima, will form in around 200 million years.
But for that to happen, new subduction zones have to form in the margins of the Atlantic, he said.
What we may be witnessing here is precisely the birth of a new subduction zone that may spread over the entire Atlantic which will eventually lead to its closing.
(Excerpt) Read more at foxnews.com ...
Somehow, yeah, I can. :^) That one really cleaned house:
https://www.imdb.com/title/tt0075686/awards
In a subduction zone, one of Earths tectonic plates dives beneath another, sinking into the mantle, the layer under the crust.
As oceanic crust disappears, continents may draw closer together and collide, as has happened numerous times in the history of the planet.
Subduction zones also spawn the biggest earthquakes on the planet, as in Japan, Chile and Alaska. ..."
https://www.livescience.com/37418-subduction-zone-forming-off-spain.html
Yeah, it must really sting around this time of the year, right after May the 4th.
Me & you both...my #1 fave.
I think some turnbuckles and cables should fix this crisis.
Just need taxes raised to start.
Thanks FN!
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