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 (235.3 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 ...
“Does the phrase Famous last words occur to anyone else?”
Along with “The Calm Before The Storm.”
Along with OH shit!
5.56mm
And I so had my hopes up:
Something the hysterians fail to understand. There have been a few small eruptions there since the last big one.
Yup.
There is a rhyolitic dome and other stuff within the caldera showing post caldera eruptives.
The jinx is now in.
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.
;-)
For you math experts I just took the two latest eruptions and the average is 407,000 years. We’re overdue.
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.
I like the term hysterians.
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”.
“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 ...
There you have it, she’s about to blow!
Alrighty then! One less thing to worry about!!
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Now, if a tree don’t fall on me, I’ll live ‘til I die.
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