Skip to comments.What Did the Continents Look Like Millions of Years Ago?
Posted on 09/25/2013 6:56:19 AM PDT by Renfield
The paleo-tectonic maps of retired geologist Ronald Blakey are mesmerizing and impossible to forget once you've seen them. Catalogued on his website Colorado Plateau Geosystems, these maps show the world adrift, its landscapes breaking apart and reconnecting again in entirely new forms, where continents are as temporary as the island chains that regularly smash together to create them, on a timescale where even oceans that exist for tens of millions of years can disappear leaving only the subtlest of geological traces.
With a particular emphasis on North America and the U.S. southwestwhere Blakey still lives, in Flagstaff, Arizonathese visually engaging reconstructions of the Earth's distant past show how dynamic a planet we live on, and imply yet more, unrecognizable changes ahead.
These images come from Ron Blakey's maps of the paleotectonic evolution of North America. The first map shows the land 510 million years ago, progressing from there reading left to right, top to bottom through the accretion and dissolution of Pangaea into the most recent Ice Age and, in the final image, North America in its present-day configuration....
(Excerpt) Read more at theatlantic.com ...
The west coast of North America as it appeared roughly 215 million years ago (map by Ron Blakey)
I like the old version better.
Ooohhh, there was so much more coastline to be had. I wonder if coastal property and water views were affordable back then.
Do you suppose we could go back to that...?
I was born just a couple of million years too late. I’d have had beach front property.
So if you lived in Baker, Calif., Rhyolite, Nev. or Yuma, Ariz. at the time, you would have had beach-front property.
All you’d need are a tall ship and fair winds. Lots of exploring to do!
Oh sure, lots o’coastline, but they didn’t have the Oprah Winfrey Network’s quality programming back then!!
That’s all well and good, but my ferry-ride to the mainland would take a week instead of an hour and a half...
On the other hand, had I stayed where I was born, I’d be a two hour drive to the sea. I’d miss the Rockies, though.
There’s no Cabo. There must be a Cabo.
I would have had my own island!
We obviously need a massive scheme of government intervention and control to stop anthropogenic continental drift!
He’s not even close. Geologists made a bad assumption fifty or so years ago.....
On the other hand, had I stayed where I was born, Id be a two hour drive to the sea. Id miss the Rockies, though.
"Where can we go when there's no San Francisco?
Better get ready to tie up the boat in Idaho."
--From Day After Day by Shango
“Where can you go,
When there’s no San Francisco!
Better get ready to tie up the boat,
Old song from the late 1960s.
An example of what can be done with too much time on someone’s hands. Nonsense.
Lots of time and the “cloning” and “warping” tools. LOL.
how is this “nonsense”? dr. blakey’s been working on these maps in conjunction with numerous scholarly publications and a few books since the 1970s.
My wife was watching one of those “celebrity house” shows, and one of them had a big wall/fireplace made of imported sandstone. I told her ours was imported sandstone, too. She asked where it was from, and I told her “Pangea”.
In all fairness, it is rather unfortunate that such maps end with the present day. It would be as creative a project to show, based on current tectonic trends, what the future holds.
For example, in a mere 50 million years, Africa is going to jam headlong into Eurasia, as the most dramatic change.
At 150 million years, Australia will join with Antarctica, yet likely have a land bridge to Eurasia. And at 250 million years, the continents are generally going to Pangea-up again.
Blakley’s work is not nonsense. My response was directed at the link posted in post 16. Apparently, if you get Google Earth, you too can be a geologist.
It is also true that the Earth’s rotation is slowing, but I’m pretty sure that if we end capitalism, adopt globalism and a massive egalitarian wealth redistribution, we can fix that. /s
Quite cheap. But instead of feral people, you’d have had to contend with angry dinos.
This is fantastic! “Annals of the Former World”, by John McPhee describes a lot of this, but I always had a hard time visualizing it well. Love it, love it, love it. Thanks for the link!
-——this is a concept that non-geologists really have problems with, because they dont understand the processes of how continents get uplifted and subside ——
So there we have it....... global warming is not causing the sea levels to rise. The continent is subsiding as it moves.
Chicken little must be reeducated. Quacky Lacky must develop a program to curtail continental drift.
This is not theory but reality. They have the drift numbers and proof, not models.
-——Where can you go,
When theres no San Francisco!-—
A new queertown is rising in Asheville NC so an immigrant queer from New York told me