Sciencescience

Thu Mar 14, 2019, 09:18 PM

The Permian mass extinction took 6 million years



The end-Permian crisis, by far the most dramatic biological crisis to affect life on Earth, was triggered by a number of physical environmental shocks - global warming, acid rain, ocean acidification and ocean anoxia. These were enough to kill off 90 per cent of living things on land and in the sea.

Dr Chen said: "It is hard to imagine how so much of life could have been killed, but there is no doubt from some of the fantastic rock sections in China and elsewhere round the world that this was the biggest crisis ever faced by life."

Current research shows that the grim conditions continued in bursts for some five to six million years after the initial crisis, with repeated carbon and oxygen crises, warming and other ill effects.



Read more at: https://phys.org/news/2012-05-million-years-recover-mass-extinction.html#jCp

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Arrow 26 replies Author Time Post
Reply The Permian mass extinction took 6 million years (Original post)
orson Mar 14 OP
safestuffer Mar 14 #1
Jack Burton Mar 14 #2
SatansSon666 Mar 15 #5
Jack Burton Mar 15 #7
SatansSon666 Mar 15 #9
Squeek Mar 15 #10
SatansSon666 Mar 15 #11
Jack Burton Mar 15 #15
SatansSon666 Mar 16 #19
oflguy Mar 15 #17
SatansSon666 Mar 16 #18
oflguy Mar 16 #20
Squeek Mar 18 #26
Jack Burton Mar 15 #14
sipow Mar 15 #8
nolidad Mar 15 #13
CokeMachine1 Mar 14 #3
SatansSon666 Mar 15 #6
SatansSon666 Mar 15 #4
nolidad Mar 15 #12
orson Mar 16 #21
nolidad Mar 17 #22
nolidad Mar 17 #23
orson Mar 17 #24
nolidad Mar 18 #25
oflguy Mar 15 #16

Response to orson (Original post)

Thu Mar 14, 2019, 09:58 PM

1. More like "Mass adaptation event."

Its not like Earth lost 90% of its biomass, or that 90% of individuals died. 90% of the species at the time were poorly adapted to changes that occurred in their habitat, so 90% of the species died out as new ones adapted to take their place.
Its not so much a mass extinction as a changing of the guard, adaptations to species better suited to the environment.

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Response to safestuffer (Reply #1)

Thu Mar 14, 2019, 11:10 PM

2. According to Aoc this extinction will take only 12 years

Doom fucking doom

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Response to Jack Burton (Reply #2)

Fri Mar 15, 2019, 04:22 AM

5. AOC? Do you tire of being a one-trick pony?

Must get boring, saying the same thing over and over.
Still waiting for your reply on the post-war cooling that you don't understand.
I tried to give you some tips on how one might be able to explain it, but hey, you got a graph.

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Response to SatansSon666 (Reply #5)

Fri Mar 15, 2019, 08:08 AM

7. I guess you don't like Occasional-Cortex. Perhaps you are a Beta-boy O'Rouke fan?

Beta-boy is going to save the world from ending in 12 years! DOOOOOOOOM 12 fucking years until the end of the world says the democrat presidential candidate!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! We're all gonna DIIIIIIIIIEEEEEEEEEEEEEEEE! Stop eating hamburgers and save the planet!!!! There is nothing we can do "we face catastrophe...even if we stop emitting carbon today" according to beta-boy. Whole countries are going to be "uninhabitable" or "under the sea". Why do you hate the planet????



Go to timestamp 15:30 for the start of the doom hysteria and some exceptional hand waving.


While speaking at a coffee shop in Keokuk, IA, 2020 presidential hopeful Beto O’Rourke voiced his support for the Green New Deal, echoing socialist Rep. Alexandria Ocasio-Cortez (D-NY) in saying the world will end in 12 years if nothing is done. O’Rourke told the group gathered at the coffee shop that he has not “seen anything better that addresses this singular crisis” that he said “could lead to extinction” than the Green New Deal.

“This is the final chance,” the failed Senate candidate from Texas advised. “The scientists are absolutely unanimous on this — that we have no more than 12 years to take incredibly bold action on this crisis. My gratitude to them for the young people who stepped up to offer such a bold proposal to meet such a grave challenge.”

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Response to Jack Burton (Reply #7)

Fri Mar 15, 2019, 11:19 AM

9. I just have a hard time to figure out what she has to do with the Permian extinction.

Your fallacious logic never explained that.

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Response to SatansSon666 (Reply #9)

Fri Mar 15, 2019, 11:53 AM

10. I mostly gave up

trying to figure out why some here have to make literally EVERYTHING political. Even if it's an event that happened like 50 gazillion years ago.


"The Hadean eon represents the time before a reliable (fossil) record of life; it began with the formation of the planet and ended 4.0 billion years ago. The following Archean and Proterozoic eons produced the beginnings of life on Earth and its earliest evolution. The succeeding eon..."


"But, but, but.... HILLLLAAAARRRRRYYYYYYY!!!!!!!!!!!!!!!!!!!!!!!!!11"



Yep...it would totally happen....

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Response to Squeek (Reply #10)

Fri Mar 15, 2019, 11:58 AM

11. I picture him tossing and turning at night.

Mumbling "globull.. AL. . AL gore. . Co2.. gore.. AOC.. ice age.. gore.. AL. . AL .
THEN WAKES UP SFREAMING AAAALLLLLLLLL!!!!

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Response to SatansSon666 (Reply #11)

Fri Mar 15, 2019, 05:36 PM

15. I sleep just fine at night.

Unlike psychopathic, brainwashed, doomers.

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Response to Jack Burton (Reply #15)

Sat Mar 16, 2019, 04:26 AM

19. Sure thing.

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Response to Squeek (Reply #10)

Fri Mar 15, 2019, 10:59 PM

17. But, but, wouldn't you agree that the reason the earth is headed for doom in 11 years and some

months now is REPUBLICANS?

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Response to oflguy (Reply #17)

Sat Mar 16, 2019, 04:25 AM

18. I can't temember saying we are doomed in 11 years.

The only people saying that are you and a few others.
Holding on to an old documentary nobody even thinks about anymore.

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Response to SatansSon666 (Reply #18)

Sat Mar 16, 2019, 09:16 AM

20. You never watched AOC telling everybody the earth will end in 12 years?

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Response to oflguy (Reply #17)

Mon Mar 18, 2019, 11:40 PM

26. Actually it's

all of us, but go ahead and act the victim here. Poor Republicans, being blamed for everything.


Eleven years, two years, two hundred years, whatever. It's been a natural occurrence almost since time began. It could happen even without human influence, but we humans sure as hell are not helping matters any.

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Response to SatansSon666 (Reply #9)

Fri Mar 15, 2019, 05:32 PM

14. Your link in the OP tied the Permian extinction to current events.

QUOTE: "The event had re-set evolution. However, the causes of the killing - global warming, acid rain, ocean acidification - sound eerily familiar to us today. Perhaps we can learn something from these ancient events."

Had your link not tied it to current global warming events I would not have mentioned the current liberal political rhetoric on the subject.


Read your own links. Doomers tie everything to current events and global warming.

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Response to safestuffer (Reply #1)

Fri Mar 15, 2019, 09:49 AM

8. Except that is exactly what extinction means.

Extinction doesn’t require that a large amount of the biomass went away. You can have a exctinctions during times of increasing biomass.

If 90% of the population within each species dies it is not an extinction.

When the entire population of a species dies, it is an extinction.

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Response to safestuffer (Reply #1)

Fri Mar 15, 2019, 04:51 PM

13. So where are the remains of the creatures that adapted to poisonous atmosphere for 5-6 million years

If critters can adapt to a 5-6 million year poisoning, why are we worried about global warming now? we can all adapt!!!!

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Response to orson (Original post)

Thu Mar 14, 2019, 11:25 PM

3. How did that happen "globull warming"?

Were humans around industrializing the world and producing CO2? I recall hearing that the world is experiencing the hottest temperatures ever -- all "scientists" agree.



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Response to CokeMachine1 (Reply #3)

Fri Mar 15, 2019, 04:22 AM

6. You could look it up.

Nah. Why learn shit?

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Response to orson (Original post)

Fri Mar 15, 2019, 04:19 AM

4. Nice piece.

Thanks.

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Response to orson (Original post)

Fri Mar 15, 2019, 04:49 PM

12. HAte to be a killjoy but I guess I will be!

In all the five great extinctions (and the now hypothesized sixth great extinction), we find millions and billions of fosills to study buried in sedimentary rock!

Do you know how the only way sedimentary rock is laid down? It takes a watery catastrophe to lay down sedimentary rock and entomb creatures to become fossilized! You know a flood?

Acid rain and volcanoes do not make fossils.
they can do a great job of killing things- but they do not produce fossils of any worthwhile quantity!

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Response to nolidad (Reply #12)

Sat Mar 16, 2019, 09:40 AM

21. Sedimentary Rocks Lesson #13

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Response to orson (Reply #21)

Sun Mar 17, 2019, 01:37 PM

22. Well in a technical sense they are called sedimentary rocks

But more specifically they are called volcaniclastics!

Besides molten magma is lousy at preserving things to become fossilized!

No sedimentary rocks loaded with fossils can only be laid down by hydraulic catastrophes- not molten magmatic catastrophes. Sedimentary rock lesson 001`.

https://www.sciencedaily.com/terms/sedimentary_rock.htm

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Response to orson (Reply #21)

Sun Mar 17, 2019, 01:40 PM

23. From your own article:

Sedimentary rocks are formed from broken pieces of rocks. These broken pieces of rock are called sediments. The word "Sedimentary" comes from the root word "Sediment".

Sedimentary rocks are usually formed in water. Streams and rivers carry sediments in their current. When the current slows around a bend or the river empties into a lake, or ocean, or another river the sediments fall out because of gravity. The larger sediments fall out first and the lightest sediments fall out last.


and:

The diagram above shows layers of sediment that were laid down in a lake. In the spring the lake receives an influx of water from the mountain snow melt. This snow melt carries with it a large amount of sediment that becomes suspended in the lake water. As the sediment settles out during the summer and especially in the winter, if the lake becomes frozen over, the sediments come to rest on the bottom. The heaviest and largest particles settle out first and the lightest sediments such as silts and clays settle out last. The number 1 shows sediment that would have been laid down during 1994, number 2 in 1995, and number 3 would have been laid down in 1996. The gray area above the 3 would be the latest layer being laid down at the present time. This laying down of rock-forming material by a natural agent is called deposition. Natural agents of deposition are water, ice, gravity, and wind.

Sediment is deposited in flat, horizontal layers with the oldest layers on the bottom and the younger layers laying on and over the older layers. Geologists use this knowledge to read layers of sedimentary rock like the pages in a book. They can date layers by the fossils that are found in them. If a layer has a fossil in it that is known to be 50 million years old the layer itself must be at least 50 million years old and the layers below it have to be older than 50 million years.

Sorry to burst your bubble.

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Response to nolidad (Reply #23)

Sun Mar 17, 2019, 02:22 PM

24. What?

Your logic escapes me. It appears to me you've burst your own bubble.

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Response to orson (Reply #24)

Mon Mar 18, 2019, 01:01 PM

25. I was referring to your link that volcanic rocks are labelled sedimentary rocks

Sedimentary rocks are near universally understood to be water laid down strata!

As for the dates- those are labelled by failed dating methods.

All you have to do is look at floods today- they lay down multiple strata, multiple striations, but very very few corpses on their way to becoming fossils!

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Response to orson (Original post)

Fri Mar 15, 2019, 07:39 PM

16. This is shocking news to me.

I wasn't aware republicans have been around that long.

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