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Researchers Discover That Global Mass Extinctions of Land-Dwelling Animals Follow a 27-Million-Year Cycle
SciTechDaily ^ | December 10, 2020 | New York University

Posted on 12/11/2020 6:26:46 PM PST by BenLurkin

Sixty-six million years ago, 70 percent of all species on land and in the seas, including the dinosaurs, suddenly went extinct, in the disastrous aftermath of the collision of a large asteroid or comet with the Earth. Subsequently, paleontologists discovered that such mass extinctions of marine life, in which up to 90 percent of species disappeared, were not random events, but seemed to come in a 26-million-year cycle.

In their Historical Biology study, Rampino and co-authors Ken Caldeira of the Carnegie Institution for Science and Yuhong Zhu of NYU’s Center for Data Science, examined the record of mass extinctions of land-dwelling animals and concluded that they coincided with the extinctions of ocean life. They also performed new statistical analyses of the extinctions of land species and demonstrated that those events followed a similar cycle of about 27.5 million years.

What could be causing the periodic mass extinctions on land and in the seas? Mass extinctions are not the only events occurring in cycles: the ages of impact craters — created by asteroids and comets crashing to the Earth’s surface — also follow a cycle aligning with the extinction cycle.

Astrophysicists hypothesize that periodic comet showers occur in the Solar System every 26 to 30 million years, producing cyclical impacts and resulting in periodic mass extinctions. The Sun and planets cycle through the crowded mid-plane of the Milky Way Galaxy about every 30 million years. During those times, comet showers are possible, leading to large impacts on the Earth.

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


TOPICS: Miscellaneous
KEYWORDS: galacticplane; massextinctions
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To: BenLurkin

These scientists need to talk to the Creator . . .the One responsible for their next breath. God spoke the world and its inhabitants into existence and “He can take us out just like he put us in” this earth. Someone please give these so called global experts Bibles.


21 posted on 12/11/2020 7:04:16 PM PST by Maudeen (If you were to die in the next few minutes, where will you spend Eternity? Worth thinking about.)
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To: BenLurkin

“Sixty-six million years ago... Subsequently...”

That little bit of bad writing made me smile.


22 posted on 12/11/2020 7:08:03 PM PST by dangus
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To: BenLurkin

It should be obvious why Earth experiences mass extinctions. The Solar System takes about 400 million years to complete an orbit around the galactic center.

The Solar System is not standing still. At points during that orbit the Earth and the Solar System encounter meteors.


23 posted on 12/11/2020 7:10:15 PM PST by meatloaf
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To: BenLurkin

Re: geologist Michael Rampino

I once arranged for him to speak before an organization I belonged to at the American Museum of Natural History. Got a free dinner out of it at a restaurant with him and other members of the club. They had to pay. Lol.

Anyway, his talk was on the Permian mass extinction event, the largest of all extinctions. As far as I know, they’ve never found evidence for an impact at that time. The mechanism was likely massive volcanism in Siberia. ie, the Siberian Traps. There was also massive volcanism in India around the time of the more famous dinosaur mass extinction. ie, the Deccan Traps.


24 posted on 12/11/2020 7:12:15 PM PST by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! Click ETL...)
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To: BenLurkin

Prove it. Nonsense.


25 posted on 12/11/2020 7:13:47 PM PST by Fungi
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To: BenLurkin

.


26 posted on 12/11/2020 7:18:07 PM PST by sauropod (Let them eat kale. I will not comply. Sic semper evello mortem tyrannis.)
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To: Fungi
The Fossil Record - Kindle edition by Morris, John D., Sherwin, Frank J..  Religion & Spirituality Kindle eBooks @ Amazon.com.
27 posted on 12/11/2020 7:18:20 PM PST by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! Click ETL...)
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To: MadMax, the Grinning Reaper


28 posted on 12/11/2020 7:28:15 PM PST by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! Click ETL...)
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To: BenLurkin
The Geminid meteor shower, the best of 2020, peaks this weekend. Here's what to expect.

Sunday night, 13 December 2020.

What might be lurking in all that dust and pebbles???

29 posted on 12/11/2020 7:29:59 PM PST by Alas Babylon! ("You, the American people, are my only special interest." --President Donald J. Trump)
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To: BenLurkin

I’ve heard this before, but I don’t see the pattern in the numbers at all!

Major extinction events:
542 million years ago
517 million years ago (25 million years later)
502 million years ago (15 million years later) *
488 million years ago (14 million years later) *
440 million years ago (48 million years later)
373 million years ago (67 million years later)
359 million years ago (14 million years later) *
260 million years ago (99 million years later)
252 million years ago (8 million years later)
201 million years ago (51 million years later)
145 million years ago (56 million years later) *
66 million years ago (79 million years later)
34 million years ago (32 million years later)
14 million years ago (20 million years later)
current (of course, 14 million years later) *

Several seem to be some multiple of 14 years apart from the previous one, but there’s no multiple of 14 between such pairs, so it just seems like a byproduct of randomness.


30 posted on 12/11/2020 7:33:50 PM PST by dangus
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To: dangus

Just because the comets in the distant Ort Cloud may get stirred up every 25-26 or so million years, doesn’t mean comets from there will necessarily come crashing into earth each time. There are many possible causes for mass extinctions, and it could well be a combination of various factors.


31 posted on 12/11/2020 7:45:39 PM PST by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! Click ETL...)
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To: BenLurkin

As long as the Big Guy still gets 10% after the mass extinction.


32 posted on 12/11/2020 8:03:26 PM PST by freefdny
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To: freefdny

33 posted on 12/11/2020 8:11:48 PM PST by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! Click ETL...)
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To: freefdny

"Come on, man,” Biden said. “That's like saying to you, before you got on this program if you had taken a test were you taking cocaine or not. What do you think, huh? Are you a junkie?"


34 posted on 12/11/2020 8:13:43 PM PST by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! Click ETL...)
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“That's like saying to you, before you got on this program if you had taken a test were you taking cocaine or not. What do you think, huh? Are you a junkie?"



Joe Bidens Son Photos Show Hunter Biden Smoking Crack! - YouTube

35 posted on 12/11/2020 8:16:20 PM PST by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! Click ETL...)
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To: Alas Babylon!
What might be lurking in all that dust and pebbles???

Sweet Meteor of Death.

And it is LATE!

I would put in a complaint if I thought it would do any good.

36 posted on 12/11/2020 8:26:03 PM PST by Harmless Teddy Bear (Dear Clare, The awkward time is almost over. Love, Normal Americans)
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To: BenLurkin

Reminds me of Noah. I think the rainbow is God’s message that He won’t do that again.


37 posted on 12/11/2020 8:51:46 PM PST by NetAddicted (Just looking)
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To: NetAddicted

Supposed to go by fire....could a large mass break off from the sun...hurtle to earth immolating it?


38 posted on 12/11/2020 9:03:44 PM PST by Getready (Wisdom is more valuable than gold and diamonds, and harder to find.)
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To: BenLurkin

I’m sorry but I have a lot of other things to do rather than stick around for 54 million years to see if this is true or not.


39 posted on 12/11/2020 9:29:51 PM PST by Rembrandt (-a sure sign a Dem is lying - his lips are moving.)
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To: BenLurkin

We are doomed!


40 posted on 12/11/2020 9:37:05 PM PST by DennisR (Look around. God gives countless clues that He does, indeed, exist.)
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