Skip to comments.Geologic History of North America Gets Overturned
Posted on 04/17/2013 7:05:48 AM PDT by Renfield
t's time to redraw the map of the world during the reign of the dinosaurs, two scientists say.
Picture the U.S. West Coast as a tortured tectonic boundary, similar to Australia and Southeast Asia today. Erase the giant subduction zone researchers have long nestled against western North America. Drop a vast archipelago into the ancient Panthalassa Ocean, usually drawn as an empty void, the kind on which medieval mapmakers would have depicted fantastical beasts.
"Now it fits together," said Karin Sigloch, a seismologist at Ludwig-Maximilians-University in Munich, and lead study author. "We've come up with a pretty different solution that I think will hold up."
With a spectacularly clear look at the remnants of ancient subduction zones under North America, Sigloch and her colleague Mitch Mihalynuk have revised 200 million years of geologic history. The results of their study are published today (April 3) in the journal Nature....
(Excerpt) Read more at news.yahoo.com ...
According to this revelation, when a plate sinks well into the abyss of the earth’s core, down 1,200 miles; it retains some of the original structure it had when it was close to the surface. I would have assumed it would have been disolved by then.
The climate and typography assumptions of the Jurassic and earlier remain.
This has been a result of new discoveries, understanding, and modeling over the past decade or so.
I think it's pretty widely believed that subducted slabs are actually hitting the core-mantle boundary, astonishingly.
“I would have assumed it would have been disolved by then.”
Yeah! Cuz it’s, like, millions of degrees down there right? Somebody said that.
The center of the earth is a nuclear reactor, which is why it has never cooled down. Fission products are created by this nuclear reaction, resulting in an increase in volume as a single atom of one element decays and becomes multiple atoms of other elements.
The author of the linked study is an imbecile.
What exactly motivates the belief and fascination with random kooks instead of actual scientists?
Personally, I think the expanding planet theory is too hilariously stupid not to laugh at it or anyone that gives it any creedence.
There's no evidence the Earth is expanding based on GPS. There are thousands of pieces of evidence that subduction occurs, based on GPS and seismic profiling. Expanding Earth is garbage. Case closed.
Well see that’s because the Bush’s Fault is constantly moving and can’t be pinned down to just one place!
I read a book once, so I’m pretty smart. I think the Earth is like a big tick, except that it doesn’t have to eat anything to get bigger. If you look at pictures of it from space it is round, just like a really big tick that is about to pop.
How ‘bout the hydroplate theory?
I have enough geology background to find that link fascinating and at the same time wonder if it’s complete bullsh_t.
What is absolute BS is the notion that convective currents beneath the lithosphere move the continents. Ever wonder: what about Newton’s Third Law?
Indeed, the science is settled.
Crosslink to this previous post:
Cosmic Impact Site That Created Earths Axial Tilt and Fault Lines
Report and Opinion. 2010;2(2):1-2]. (ISSN: 1553-9873) | Feb 2010 | Mihai Draghici
Posted on 12/08/2010 8:07:46 PM PST by mdraghici
|GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach|
Yep. Once you’ve seen Neal Adams you can never go back. And when was it? Might it have been as it says in the Original Testament...in the time of Peleg, when the earth was divided, and the fountains of the deep were exposed...? (paraphrased.) The earth expanded within the memory of man, within historical times.
I don’t know if I buy all this. However, the apparent wash to the the east at the tip of South America, and at Panama is certainly interesting. North and South America have only been connected for about 3 million years. I have always felt as if my body wanted a 25 hour day, and I think others notice the same effect. So I certainly think an event affecting the speed of the earth’s rotation is possible.
And I have fallen arches, as do so many others, indicating that we were designed for a lighter gravity. ;-’)
I've read this one both ways. Speeding up and slowing down. The brain because of the physical world surrounding us believes in most reactions slowing after said action is a law of nature. It is the natural order to which each of us is exposed, till what was in motion comes to be at rest. In the world of time and space in the universe heard for countless years the expanse of the universe is slowing down only to next read and hear (oops) the expanse has not slowed. The entire discussion reminds me of the global warming theory. Global warming where we were told humans were cooling the planet about fifty years ago and a new ice age is coming. Then we were told, no, humans are increasing the rate at which the planet is warming and the ice is melting. Next we were told because things started to cool once more ... it's Climate Change. Have fun everyone. Lies and liars come in all aspects of life and science. I shall pray for God to control. Man has little to no control in this vastness called space.
You sold me.
It also explains how the parallel laid down rocks in my area are uplifted in a north westerly manner in parallel sinusoidal ridges.
Then I guess we’re both imbeciles or kooks.
I am okay with it - helps me to fit in out here on the Left Coast.
On why you think that the notion of convective currents is “BS” and the relevance of Newton’s Third Law.
The website mentions the Lyustikh paper - give it a read, perhaps even its references.
I already read it. Codswallop.
Not sure what link you’re referring to, but the threeimpacts link is working. From that site I cited a paper that criticizes drift and convection. You said you read it and then classified it as garbage. I have asked you to elaborate why you classify it as you do. So: please explain why the paper by Lyustikh is garbage.
Who won today, by the way, sweeping the Mets.
Just marking for later.
That reply is so flawed that it’s not even worth addressing.
Strategerist - why don’t you help out stormer?
You were supposed to critique the paper cited at he link. Such bluster.
If the earth is expanding, it's due to the slow build up of space dust and meteors continually hitting the earth.