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General => History => Topic started by: zorkan on September 27, 2024, 01:03:09 PM

Title: Fascinating Geological History
Post by: zorkan on September 27, 2024, 01:03:09 PM
Forget alien invasion and climate change, the biggest threat we could face are from volcanic eruptions.

1500 years ago.
https://www.science.org/content/article/why-536-was-worst-year-be-alive

74,000 years ago.
https://geographical.co.uk/science-environment/explainer-the-toba-supervolcano-and-the-biggest-eruption-in-human-history

We can do something about climate and pandemics, but volcanoes never.


Title: Re: Fascinating Geological History
Post by: zorkan on September 27, 2024, 01:15:53 PM
Last year.

https://www.bbc.co.uk/news/articles/cged3jd8llyo

Can't do anything about landslides of this magnitude, either.
Title: Re: Fascinating Geological History
Post by: billy rubin on September 27, 2024, 09:45:10 PM
Quote from: zorkan on September 27, 2024, 01:03:09 PMWe can do something about climate and pandemics, but volcanoes never.


im not sure we can do anything about climate change. i believe its baked in. it will take a major disaster before anything happens.

but with volcanoes, you can move away from the initial sources of danger. i lived on top of the san andreas fault in western america for 17 years, and the earthquakes were things you eventually took mostly for granted. with some major exceptions.

but the climactic impacts of major eruptions look to be similar to meterorite impacts, with cooling and light reduction.

with asteroids, we get big ones periodically, and theres debate about what can be done about them.
Title: Re: Fascinating Geological History
Post by: Icarus on September 28, 2024, 03:33:27 AM
If Yellowstone ever blows, it's adios Muchacha.
Title: Re: Fascinating Geological History
Post by: zorkan on September 28, 2024, 12:17:09 PM
Quote from: billy rubin on September 27, 2024, 09:45:10 PMwith asteroids, we get big ones periodically, and theres debate about what can be done about them.

If Tunguska was an asteroid or comet hit we couldn't have done anything, but now we could send up a rocket with a warhead to divert it.
Well, couldn't we?

I'm impressed by continental drift.
Had that not happened then humans would have found it easier to kill each other.

If something like Yellowstone blows the skies will darken, sunlight will be cut off, photosynthesis will cease, humans will be reduced to cannibalism.
Mass panic and total mayhem.
If humans have not terraformed Mars by then the whole race could become extinct.



Title: Re: Fascinating Geological History
Post by: billy rubin on September 28, 2024, 10:43:37 PM
is that a problem in some way?
Title: Re: Fascinating Geological History
Post by: The Magic Pudding.. on September 29, 2024, 07:26:48 AM
Quote from: zorkan on September 28, 2024, 12:17:09 PM
Quote from: billy rubin on September 27, 2024, 09:45:10 PMwith asteroids, we get big ones periodically, and theres debate about what can be done about them.

If Tunguska was an asteroid or comet hit we couldn't have done anything, but now we could send up a rocket with a warhead to divert it.
Well, couldn't we?

No I don't think so, Bruce Willis has dementia now, we're doomed.
Title: Re: Fascinating Geological History
Post by: zorkan on September 29, 2024, 01:34:22 PM
If not Willis, surely Trump will save the world.
https://www.astronomy.com/science/nuclear-bombs-really-could-deflect-asteroids-lab-tests-suggest/

On the subject of impact craters Mars has the largest yet discovered.
"The largest crater on Mars (and, arguably the largest so far discovered in the solar system) is the Hellas basin measuring 1600 x 2000 km, roughly twice the size of Alaska. "
Earth's are small by comparison.
https://www.astronomy.com/science/these-5-impact-craters-highlight-earths-wild-history/

Maybe life on Mars was obliterated by an asteroid.
Title: Re: Fascinating Geological History
Post by: Tank on October 20, 2024, 01:31:07 PM
Quote from: billy rubin on September 28, 2024, 10:43:37 PMis that a problem in some way?

Nope.
Title: Re: Fascinating Geological History
Post by: zorkan on October 20, 2024, 04:32:33 PM
In the UK there are no active volcanoes but here is a list of extinct ones.

https://en.wikipedia.org/wiki/List_of_volcanoes_in_the_United_Kingdom

I have visited quite a few and the nearest is Barrow Hill.
In the unlikely event it erupts again there is a hospital only a few hundred yards away.


Title: Re: Fascinating Geological History
Post by: Tank on October 20, 2024, 07:45:43 PM
Isn't that a little too close? :D
Title: Re: Fascinating Geological History
Post by: billy rubin on October 21, 2024, 12:52:18 AM
i would think so. but you never can tell.
Title: Re: Fascinating Geological History
Post by: zorkan on October 21, 2024, 11:28:06 AM
Very silly building a hospital (it's called Russells Hall) so close to a volcano.
But it's a "A very British volcano."
https://depositsmag.com/2024/05/11/barrow-hill-an-ancient-very-british-volcano/

It's like building a city under Vesuvius.
Seems like the ground around is fertile.
https://www.reddit.com/r/explainlikeimfive/comments/14wu2e8/eli5_how_could_neapolitans_build_a_city_under_the/?rdt=43725
Title: Re: Fascinating Geological History
Post by: zorkan on January 04, 2025, 12:24:47 PM
1783 was the year Europe was blanketed in a mysterious fog.
Crops failed and people starved, and nobody knew why.

https://www.encyclopedie-environnement.org/en/society/laki-fissure-eruption-1783-1784/

As speculated by Benjamin Franklin, but it might be wrong.

https://phys.org/news/2011-09-ben-franklin-wrong-volcanic-eruption.html

 
Title: Re: Fascinating Geological History
Post by: zorkan on October 31, 2025, 01:38:11 PM
When fossils were found in a slate quarry in Oxfordshire, this one attracted the attention of William Buckland of Oxford University.

https://paleonerdish.wordpress.com/2024/02/20/200-years-of-the-great-fossil-lizard-of-stonesfield/

Buckland described the first dinosaur, ate every animal he could find, and is said to have eaten the heart of a French king.

https://www.iflscience.com/eccentric-scientist-who-described-first-dinosaur-allegedly-ate-the-heart-of-a-king-67876