and ...
"Satan's Triangle" gave me nightmares for months after I saw it ...
Posted on 11/13/2018 9:40:34 AM PST by ETL
Settled Science?
There are alternative theories that are just as entertaining as the idea of swimming continents.
better animations from cartoonist Neal Adams:
https://www.youtube.com/watch?v=oJfBSc6e7QQ
better explanation from a real geology professor:
https://www.youtube.com/watch?v=dy-b8M_nOcw
Who said that anything here was Settled Science? This isn't GoreBull Warming.
Is it increasing in mass, or is it becoming less dense?
and ...
"Satan's Triangle" gave me nightmares for months after I saw it ...
ML/NJ
Expanding Earth is certainly intriguing.
You don’t believe in continental drift, or plate tectonics?
You ever look at these maps of continental drift and wonder if any other continents or islands existed that were subsided and are now lost?
That’s cool.
“the planet was much warmer than it was today”
Guess the dinosaurs were riding around in SUV’s, because there sure weren’t any humans there to cause global warming.
No.
In fact when I was in college (RPI '68), some speaker came to give a talk about this stuff and he was considered a quack.
Also, there's a big difference between continental drift and the notion that there was a time when there was only one land-mass while water still covered two-thirds of the planet. You sorta have to explain how it got that way; not that the explanations of how the earth formed as we see it are any good either. (E.g.: tell me what the earth was like when it was 7000 miles in diameter, assuming you believe it accreted and it was 7000 miles in diameter sometime.)
ML/NJ
Landmasses usually get plastered onto a continental edge when one plate dives beneath another, especially if the rock consists of lighter, less dense materials, as is the case with continents. Continental rock (typically "granitic" in composition [not necessarily granite, but of the same basic minerals as granite) is different than ocean floor rock. It is less dense and so 'floats' on the denser oceanic (basaltic) rock.
The Museum of Natural History here in New York has a hands-on exhibit where they have two rocks of the same size placed side-by-side, one is granite, the other basalt. There you can easily tell the difference in density between, the basalt being clearly heavier than the granite.
No. In fact when I was in college (RPI '68), some speaker came to give a talk about this stuff and he was considered a quack.
Of course. Back in the 60s, even late 60s, the theory was still pretty much new. Now there is overwhelming evidence to support it.
I actually had a structural geology professor (mid 1970s) who didn’t accept plate tectonics. You just parroted back his convoluted explanation and you were fine. Argue with him and you ended up with a “C”. One of my earliest experiences in finding out that scientists are all too human!
“While early Earth’s undersea surface was made entirely of dark, heavy volcanic rock called basalt, over time, a lighter kind of rock formed. This rock, called granite, was buoyant. It floated up from the ocean floor and gathered in thick layers, creating landmasses that we call continents.”
Lol! Kind of like a lefty "teaching" politics or American history.
yep!
I didn’t make a very good parrot!
Turn left at At the Mountains of Madness. Watch out for the killer Penguins.
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