Posted on 01/16/2022 3:44:11 PM PST by BenLurkin
Researchers at ETH Zurich have demonstrated in the lab how well a mineral common at the boundary between the Earth’s core and mantle conducts heat. This leads them to suspect that the Earth’s heat may dissipate sooner than previously thought.
The evolution of our Earth is the story of its cooling: 4.5 billion years ago, extreme temperatures prevailed on the surface of the young Earth, and it was covered by a deep ocean of magma. Over millions of years, the planet’s surface cooled to form a brittle crust. However, the enormous thermal energy emanating from the Earth’s interior set dynamic processes in motion, such as mantle convection, plate tectonics, and volcanism.
Still unanswered, though, are the questions of how fast the Earth cooled and how long it might take for this ongoing cooling to bring the aforementioned heat-driven processes to a halt.
One possible answer may lie in the thermal conductivity of the minerals that form the boundary between the Earth’s core and mantle.
This boundary layer is relevant because it is here that the viscous rock of the Earth’s mantle is in direct contact with the hot iron-nickel melt of the planet’s outer core. The temperature gradient between the two layers is very steep, so there is potentially a lot of heat flowing here. The boundary layer is formed mainly of the mineral bridgmanite. However, researchers have a hard time estimating how much heat this mineral conducts from the Earth’s core to the mantle because experimental verification is very difficult.
(Excerpt) Read more at scitechdaily.com ...
Man-caused, of course.
It’s those evil SUV’s.
Another crisis!
Hell cooling off? I dunno about that.
FFS!
Somebody please don’t let dems and idiots get their hands on this, climate change, global warming is insufferable enough.
OMG...
LOL
We’re all gonna DIE!
The best insulation in the universe must be dirt.
Somebody tell Al gore that the earth no longer has a fever.
Yeah... we can tell by all the volcanoes going off!
Trump’s fault. Trump and those damned SUVs.
Womyn and minorities will be hardest hit.
I hope it isn't by next week. I have a driveway full of ice that I want to melt first.
“bridgmanite”
A mineral created by reselling the Brooklyn Bridge over and over?
A little something to scare the Sheep
So Climate warming just might make sense.
You do know we’re talking abou tbillions of hyears, right?
Earth is cooling off faster than expected?
Hallelujah! Manufacture more SUVs! More drilling, more oil! More coal fired power plants! More backyard BBQs! We must do everything possible to prevent another “Snowball Earth.”
Would booster shots help?
Jules Verne’s Journey to the Center of the Earth.
The exploration party left litter all the way and this disturbed the ecology down there.
and
The Core (movie released 2003)
Geophysicist Dr. Josh Keyes (Aaron Eckhart) discovers that an unknown force has caused the earth’s inner core to stop rotating. With the planet’s magnetic field rapidly deteriorating, our atmosphere literally starts to come apart at the seams with catastrophic consequences. To resolve the crisis, Keyes, along with a team of the world’s most gifted scientists, travel into the earth’s core. Their mission: detonate a device that will reactivate the core.
But Rotten Tomatoes said:
Is Core a good movie?
The Core has a great cast of talented actors, but even that doesn’t save this lacking, and mediocre story. This is one of the worst action films that has come out of Hollywood, and really makes the disaster genre an irrelevant bad joke. This is a film that should be avoided.
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