Posted on 07/07/2016 5:53:44 AM PDT by BenLurkin
Two continent-size blobs of hot — and possibly molten — rock can be found deep underground, about halfway to the center of the Earth, according to a new study. These curious structures — each of which is so large that it would be 100 times taller than Mount Everest...
One of the blobs is located beneath the Pacific Ocean, and the other can be found beneath the Atlantic. These underground structures start where the Earth's mantle meets the core, but they send "plumes" up through the rock like a Lava Lamp, the researchers said.
...
Different types of seismic waves travel at different speeds, depending on the type of rock the blobs are moving through. And by comparing the timing and delay of signals from multiple locations, seismologists can build models of what's going on in the Earth's interior.
The blobs are characterized by slower wave speeds, which suggests they are a different temperature from the rest of the Earth's mantle...But at some of the edges, normal wave speeds transition abruptly to low wave speeds. A pure temperature difference would result in a more gradual change... which suggests the blobs are likely made up of something different from what makes up their surroundings.
Because they're big and characterized by the slower wave speeds, the blobs have been called large low velocity provinces (LLVPs). And ... scientists call the areas large low shear velocity provinces (LLSVPs).
...
If an especially large "superplume" of magma from one of these blobs were to make it to the surface, it would result in "massive eruptions where the lava will come out for millions of years at a time," ...There isn't much cause for alarm, though. "The next one could be on its way," he said, "but it could be a million years away."
(Excerpt) Read more at livescience.com ...
globull warming
Was that wrong?
No, but the 1970’s are remembered by symbols; Lava lamps, leisure suits, platform shoes, pet rocks, white afros, sideburns, mustaches, neck chains, disco, Captain & Tenille, etc.
Long gas lines, inflation, national malaise, Jimmy Carter, etc.
;^)
The link shows our soloar system as seen from the outside in some aliens room.
http://www.alanrudnick.org/wp-content/uploads/2013/12/lava-lamp.jpg
Here is the Universe.
http://peewee.com/wp-content/uploads/Lava-Lamp-on-shelves.jpg.
Groovy
"How can we blame this on Bush, the GOP, Halliburton, the Koch Bros and the NRA?"
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