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Yellowstone Discovery Suggests The Risk of Super-Eruption Is Actually Decreasing
ScienceAlert ^ | 06/06/2020 | DAVID NIELD

Posted on 06/07/2020 11:04:19 AM PDT by BenLurkin

The two new-found events have been named the McMullen Creek eruption (occurring about 8.99 million years ago) and the Grey's Landing eruption (occurring about 8.72 million years ago), and they significantly adjust Yellowstone's long-term volcanic timeline – and appear to show that huge eruptions are now occurring way less frequently than they once did.

Scientists were able to use a combination of chemical, magnetic, and radio-isotopic analysis to link volcanic deposits across tens of thousands of square kilometres (or several thousand square miles), joining together geological records that were previously treated as separate.

In other words, what had been seen as many smaller eruptions were in fact two giant ones.

Grey's Landing would have covered an area the size of New Jersey in ultra-hot volcanic glass – somewhere in the region of 23,000 square kilometres (or 8,880 square miles). It would have vapourised anything in its path, and spewed out a cloud of fine ash across the globe.

With both newly identified events occurring during the Miocene period (23–5.3 million years ago), it raises the number of Yellowstone super-eruptions during that time to six – or one every 500,000 years, on average.

Compare that to the two super-eruptions that are thought to have happened across the same region during the last three million years, an average of one every 1.5 million

(Excerpt) Read more at sciencealert.com ...


TOPICS: Science
KEYWORDS: catastrophism; supervolcano; yellowstone
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To: katana

“Does the phrase “Famous last words” occur to anyone else?”

Along with “The Calm Before The Storm.”


21 posted on 06/07/2020 11:56:36 AM PDT by oldvirginian (The average "progressive" makes Jethro Bodean look like Albert Einstein)
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To: oldvirginian

Along with OH shit!

5.56mm


22 posted on 06/07/2020 11:58:48 AM PDT by M Kehoe (DRAIN THE SWAMP! Finish THE WALL!)
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To: BenLurkin
"Yellowstone Discovery Suggests The Risk of Super-Eruption Is Actually Decreasing"

And I so had my hopes up:


23 posted on 06/07/2020 12:02:48 PM PDT by PLMerite ("They say that we were Cold Warriors. Yes, and a bloody good show, too." - Robert Conquest)
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To: Darksheare

Something the hysterians fail to understand. There have been a few small eruptions there since the last big one.


24 posted on 06/07/2020 12:19:20 PM PDT by crz
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To: crz

Yup.
There is a rhyolitic dome and other stuff within the caldera showing post caldera eruptives.


25 posted on 06/07/2020 12:30:07 PM PDT by Darksheare (Those who support liberal "Republicans" summarily support every action by same.)
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To: BenLurkin

The jinx is now in.


26 posted on 06/07/2020 12:52:42 PM PDT by Nuc 1.1 (Liberals aren't Patriots. Remember 1789!)
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To: BenLurkin
I don't believe scientists anymore unless they can launch a vehicle into space and mate with the ISS in 19 hours.

Here's the previous "science" on the caldera. At 500,000 years we may be overdue (ymmv) - this is Wikipedia after all.

Yep - We're all gonna die. Remember you heard it here first.

;-)


Source: Yellowstone Caldera
27 posted on 06/07/2020 1:23:42 PM PDT by Tunehead54 (Nothing funny here ;-)
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To: Tunehead54

For you math experts I just took the two latest eruptions and the average is 407,000 years. We’re overdue.


28 posted on 06/07/2020 1:40:29 PM PDT by Tunehead54 (Nothing funny here ;-)
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To: Darksheare

This really pisses me off..these hysterians.

The level of known eruptable lava is WAAAAYYY less than is usually required to force a large eruption there. Or any eruption for that matter.

Yet all we hear from some of those hysterians on say..youtube for example is..ITS READY TO BLOW!!!!

Now I wonder WTH they have not checked the Long Valley Caldera, or Mono Lake? Huh? The lava is up into the hills round abouts there.

Yet all they have in their pea brains is Yellowstone, Yellowstone, Yellowstone. Just because it has a bunch of geysers.

OH! Old Faithful looks to be spewing some off color steam! ITS GONNA BLOW!!!

Stupid. Then the one I am thinking of signs off with crickets chirping.


29 posted on 06/07/2020 1:40:59 PM PDT by crz
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To: crz

I like the term hysterians.


30 posted on 06/07/2020 1:56:20 PM PDT by Trillian
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To: crz

There’s a spreading zone buried below the southern end of the Salton Sea.
Couple years back a minor earthquake swarm indicated fluid injection at depth.
There are obsidian domes that had been mined for obsidian in recorded history.
So eruption there is a possibility.
Sciboys say “no”.


31 posted on 06/07/2020 2:48:40 PM PDT by Darksheare (Those who support liberal "Republicans" summarily support every action by same.)
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To: BenLurkin

“Yellowstone Discovery Suggests The Risk of Super-Eruption Is Actually Decreasing”

thank goodness ... i thought it was going to happen in only 600,000 years from now ...


32 posted on 06/07/2020 3:44:14 PM PDT by catnipman (Cat Nipman: Vote Republican in 2012 and only be called racist one more time!)
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To: BenLurkin

There you have it, she’s about to blow!


33 posted on 06/07/2020 4:28:43 PM PDT by Old Yeller (Systemic racism doesn't exist, but systemic stupidity is thriving.)
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To: willgolfforfood

Alrighty then! One less thing to worry about!!

...............................................

Now, if a tree don’t fall on me, I’ll live ‘til I die.


34 posted on 06/07/2020 8:31:56 PM PDT by Graybeard58 (Best left handed banjo picker on my entire block)
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