Posted on 08/01/2018 10:54:18 AM PDT by ETL
"In this research, there was no evidence of heat coming directly up from the Earth's core to power the surface volcano at Yellowstone," Zhou said. "Instead, the underground images we captured suggest that Yellowstone volcanoes were produced by a gigantic ancient oceanic plate that dove under the Western United States about 30 million years ago. This ancient oceanic plate broke into pieces, resulting in perturbations of unusual rocks in the mantle which led to volcanic eruptions in the past 16 million years."..."
"This evidence was in direct contradiction to the plume model," Zhou said.
In her study, Zhou found the new images of the Earth's deep interior showed that the oceanic Farallon plate, which used to be where the Pacific Ocean is now, wedged itself beneath the present-day Western United States. The ancient oceanic plate was broken into pieces just like the seafloor in the Pacific today. A section of the subducted oceanic plate started tearing off and sinking down to the deep earth.
The sinking section of oceanic plate slowly pushed hot materials upward to form the volcanoes that now make up Yellowstone. Further, the series of volcanoes that make up Yellowstone have been slowly moving, achingly so, ever since. "The process started at the Oregon-Idaho border about 16 million years ago and propagated northwestward, forming a line of volcanoes that are progressively younger as they stretched northwest to present-day Wyoming," Zhou added.
The previously-held plume model was used to explain the unique Yellowstone hotspot track -- the line of volcanoes in Oregon, Idaho, and Wyoming that dots part of the Midwest.
(Excerpt) Read more at sciencedaily.com ...
Intersting
I never bought the plume theory either.
"The previously-held plume model was used to explain the unique Yellowstone hotspot track -- the line of volcanoes in Oregon, Idaho, and Wyoming that dots part of the Midwest. "If the North American plate was moving slowly over a position-fixed plume at Yellowstone, it will displace older volcanoes towards the Oregon-Idaho border and form a line of volcanoes, but such a deep plume has not been found." Zhou said. So, what caused the track? Zhou intends to find out."
But I thought the ‘science was settled.’
Gee, I wonder what else they could be wrong about.
They want us so badly to believe them, but they also keep telling us that their last sure thing was bogus stuff that they just made up that didnt pan out.
So asteroid strike?
Whatever the source of the heat, the volcanic activity along the trail is especially powerful because of the type of rock that makes up the magma there, namely continental/granitic rock. This type of magma is very thick and viscous, and so traps more explosive gases which then build up leading to the historic super erruptions there.
I remember this theory from back in college.........decades ago..............
In Idaho we’re just waiting for the thing to get safely over the border into Wyoming. Then we won’t have to worry about it anymore.
Boise, Idaho has a Geothermal Heating District that provides hot water heat to homes.
Although some scientists believe an asteroid MAY have started the 'trail' activity in Oregon 16+ million years ago, the question here is, is it, what they've thought for some time now, the North American Plate riding over a stationary deep-seated hot spot (like in Hawaii with the Pacific Plate), or is it an ancient oceanic plate still in the process of 'subducting' (an old ocean plate diving beneath the NA Plate) that is the cause of the line of volcanic erruptions. Both, I suppose, could produce a line of volcanoes, each younger than the one before, like with Hawaii.
LOL. You’ll breathe a big sigh of relief when it finally hits the border.
Nobody escapes the supervolcano....
It comes for us all.
Not only do the subducted plates move, but they have changed where our states are located. Oregon, Idaho, and Wyoming are now in the Midwest. People in Chicago, St. Louis, and Minneapolis need to keep an eye out for new volcanos in their neighborhoods.
Another piece of the Farallon Plate is the Juan de Fuca plate. That plate is sub ducting under the Pacific Northwest creating the Cascade volcanoes and in the future triggering a monster earthquake and potential tsunami.
According to the past two or three supererruptions along the trail, next one is due any day now.
2 million years ago, 1.3 million, 0.6 million...
The shifting of the tectonic plates,,,?
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