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Scientists Uncover 'Deep Impact' Disaster From Space
Ananova ^ | 6-12-2003

Posted on 06/13/2003 6:10:30 PM PDT by blam

Scientists uncover 'deep impact' disaster from space

A new report suggests that a massive object from space smashed into what is now the Moroccan desert 380 million years ago, wiping out 40% of the world's marine species.

The discovery adds to the evidence linking such impacts with mass extinction events.

Only one other impact by a large comet or asteroid has convincingly been held responsible for a mass extinction.

That occurred off the Yucatan peninsular in Mexico 65 million years ago and is thought to have ended the reign of the dinosaurs.

The newly discovered impact coincided with the Kacak/otomari extinction, when up to 40% of all animals living in the sea perished.

A team of scientists led by Brooks Ellwood, from Louisiana State University in Baton Rouge, USA, found the evidence while studying Devonian rock formations in the Moroccan desert.

Carbon isotope ratios, mineral concentrations, and rock deformations were similar to those seen in Yucatan and other impact crater sites.

Writing in the journal Science, the team said: "The impact is important because it is coincident with a major global extinction event (Kacak/otomari event), suggesting a possible cause-and-effect relation between the impact and the extinction.

"The result may represent the extinction of as many as 40% of all living marine animal genera."

Fossils found in rock layers just above the impact layer suggest that many new species appeared after the disaster.

The evidence strengthens support for the idea that multiple catastrophes shaped the evolution of life on Earth.

Story filed: 19:14 Thursday 12th June 2003


TOPICS: News/Current Events
KEYWORDS: archaeology; catastrophism; craters; disaster; from; ggg; godsgravesglyphs; history; impact; satellites; scientistsdeep; space; turass
One day, the mainstream will get around to validating that smaller impacts were the cause of the decline/collapse of numerous prehistoric human civilizations.
1 posted on 06/13/2003 6:10:30 PM PDT by blam
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To: blam
One day, the mainstream may realize that 'prehistoric man' was not some ape-thing with its knuckles dragging the ground......about the same time they solve the mysteries of the Great Pyramid.......
2 posted on 06/13/2003 6:24:56 PM PDT by somemoreequalthanothers
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To: blam
Another interesting post, blam...But, but, but, I thought it was the SUVs, hot air, and rising oceans that were going to wipe us out.
3 posted on 06/13/2003 6:29:35 PM PDT by Gatún(CraigIsaMangoTreeLawyer)
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To: blam
YEC SPOTREP
4 posted on 06/13/2003 6:31:32 PM PDT by LiteKeeper
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To: LiteKeeper
UHERH ESWA
5 posted on 06/13/2003 6:33:15 PM PDT by Gatún(CraigIsaMangoTreeLawyer)
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To: blam
One day, the mainstream will get around to validating that smaller impacts were the cause of the decline/collapse of numerous prehistoric human civilizations.

Additionally, the impact of micrometeors can be associated with many of my own personal worst days.

6 posted on 06/13/2003 6:35:31 PM PDT by Lazamataz (POLICE TAGLINE DO NOT CROSS POLICE TAGLINE DO NOT CROSS POLICE TAGLINE DO NOT CROSS POLICE TAGLINE D)
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To: Gatún(CraigIsaMangoTreeLawyer); LiteKeeper; blam
YEC SPOTREP

UHERH ESWA


WTFDTSM?

;-)

7 posted on 06/13/2003 6:41:38 PM PDT by Tunehead54 (Support Our Troops! Screw France.)
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To: blam
It is interesting how catastrophism is coming back.
8 posted on 06/13/2003 6:43:23 PM PDT by AEMILIUS PAULUS (Further, the statement assumed)
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To: Tunehead54
"WTFDTSM? "

ROTFLMAO!!!
9 posted on 06/13/2003 6:44:20 PM PDT by PatrioticAmerican (If the only way an American can get elected is through Mexican votes, we have a war to be waged.)
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To: blam
It appears that the impact events / extinction events are happening roughly every 65-70 million years. You have the Chuxulub event (the KT dinausor killer), the impact swarm 130 million years ago, the Triasic extinction 195 million years ago, the "great dying" 260 million years ago at the end of the Permian and beginning of the Triasic. Beginning to see a pattern? This is close to double the periodicity of our solar system's passing through the galactic plane, which occurs about every 35 million years (we are currently going 7 km/s in the direction of galactic "north"). that would indicate that there's something bad that happens every time we pass from south of the plane of our galaxy to north of it, but it doesn't seem to affect us as much when we go north to south. I wonder what the heck that means.

My great theory is that we have times of more... stuff, yeah, stuff... and times of less stuff. Right now, we're entering into a time of more stuff. This affects not just natural disasters, such as impacts or volcanoes, but I also believe that it affect life, such as us, in the way we act and interact. And when the stuff hits the fan, as it is doing now in human events, we will also see great upheavels in natural events. More impacts, more volcanoes, more hurricanes, more wars, etc. It is a general increase in energy, increase in entropy, increase in... stuff.

Now, the question is, do you have your stuff together, or is it time to duck, cause the stuff is running downhill, straight at us?

10 posted on 06/13/2003 7:07:29 PM PDT by Phsstpok
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To: blam
I always knew that the Hyperborian Age would be discovered by some keen observer. Or are you talking about Hogan and Velikovsky and the "First Dark Age"?
11 posted on 06/13/2003 7:09:20 PM PDT by The Shootist
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To: AEMILIUS PAULUS
Can nip that in the bud real quick. All someone has to do is write the accounts in a religious text and immediately have that pushed back into oscurity.
12 posted on 06/13/2003 7:11:32 PM PDT by Tench_Coxe
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To: Tunehead54
YEC SPOTREP

UHERH ESWA

WTFDTSM?

JIONE....#$8W#%!!!...GIJENI?

13 posted on 06/13/2003 7:11:50 PM PDT by Gatún(CraigIsaMangoTreeLawyer)
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To: The Shootist
"Or are you talking about Hogan and Velikovsky and the "First Dark Age"?"

No, I was thinking more like, Clube, Napier, Steel, Bailey and Baillie. See the example below.

The Dark Ages: Were They Darker Than We Imagined?

14 posted on 06/13/2003 7:22:34 PM PDT by blam
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To: The Shootist
...And this:

Did Asteroids And Comets Change The Tides Of Civilization?

15 posted on 06/13/2003 7:25:05 PM PDT by blam
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To: blam
Bump
16 posted on 06/13/2003 7:30:20 PM PDT by Fiddlstix (~~~ http://www.ourgangnet.net ~~~~~)
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To: blam
From Science

Devonian Death From Outer Space

Nobody doubts that a 15-kilometer-wide asteroid slammed into Earth 65 million years ago. And most scientists agree that the environmental fallout from this impact wiped out the dinosaurs. But convincing evidence connecting other mass extinctions to asteroid impacts has been elusive. Now, a team of researchers has uncovered persuasive evidence in the Moroccan desert of an impact 380 million years ago that may have cut marine biodiversity during the Devonian Period, nearly in half.

About a decade ago, geophysicist Brooks Ellwood of Louisiana State University in Baton Rouge was studying the magnetic properties of 380-million-year-old rocks in the Moroccan desert for another project, when he noticed a strange pattern in the rock layers. Years later while visiting Gubbio, Italy, he found the same magnetic pattern in rocks that record evidence of the dinosaur-killing impact at the Cretaceous-Tertiary (K-T) boundary 65 million years ago: There was a sharp magnetic change in the rock layer at the boundary caused by heavy metals in the impact debris. This led him to wonder if the pattern in the Moroccan rocks could have been caused by an impact as well.

When Ellwood and colleagues returned to Morocco they found several pieces of evidence that are very similar to those found at the K-T boundary: high concentrations of nickel, chromium, cobalt, arsenic, and vanadium; a drastic change in the carbon isotope ratio; tiny bits of material called microspherules and microcrysts that formed in the atmosphere from rapidly cooling impact debris; and quartz containing shock fractures that are typically formed by a huge, catastrophic event such as an impact. The most exciting aspect of the discovery, described in the 13 June issue of Science, is that the apparent impact would have preceded one of the five biggest extinctions ever. Known as the Kacák/otomari event, the Devonian extinction didn't have much of an effect on life on land but had a global impact on marine animals, decimating the reef ecosystems.

"Evidence is beginning to mount for coupling extinction events to extraterrestrial causes," says geochemist Luann Becker of the University of California, Santa Barbara. But the researchers need to show similar evidence for the impact on different continents that would indicate a global effect, she says. "There's still no real smoking gun."

See also Brooks Elwood's web site http://www.geol.lsu.edu/department/faculty/ellwood
17 posted on 06/13/2003 7:30:58 PM PDT by Lessismore
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To: Gatún(CraigIsaMangoTreeLawyer)
See # 9 - Res ipsa loquitor?


;-)
18 posted on 06/13/2003 7:31:53 PM PDT by Tunehead54 (Support Our Troops! Screw France.)
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To: blam
Could be. Interesting supposition.

BTW, I really enjoy your wide ranging and eclectic taste in posting subjects.

19 posted on 06/13/2003 7:32:54 PM PDT by Travis McGee (----- www.EnemiesForeignAndDomestic.com -----)
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To: Gatún(CraigIsaMangoTreeLawyer)
IT"S MOOSE CODE!!!!!!!!!!!!!!!!!


20 posted on 06/13/2003 7:34:39 PM PDT by The Magical Mischief Tour
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To: PatrioticAmerican; Gatún(CraigIsaMangoTreeLawyer)
Thanks. The "Brightening your day" charge is $20.00 Please pay the lady on your way out. ;-) Still waiting on the mango guy!



21 posted on 06/13/2003 7:41:29 PM PDT by Tunehead54 (Support Our Troops! Screw France.)
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To: Travis McGee
"BTW, I really enjoy your wide ranging and eclectic taste in posting subjects."

Thanks. (It keeps the Feds guessing)

22 posted on 06/13/2003 7:42:59 PM PDT by blam
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To: Tunehead54
"Still waiting on the mango guy!"

You mean Mungo Man?

23 posted on 06/13/2003 7:45:24 PM PDT by blam
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To: blam; Gatún(CraigIsaMangoTreeLawyer)
No but very interesting (I'll read it after dinner) - This guy: Gatún(CraigIsaMangoTreeLawyer) - I think he's in Panama prolly paid by the chinee whampoa people. I'm pretty sure. ;-)



24 posted on 06/13/2003 7:51:23 PM PDT by Tunehead54 (Support Our Troops! Screw France.)
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To: Phsstpok
I read many years ago that it was every 83 million.
25 posted on 06/13/2003 7:51:29 PM PDT by My back yard (I will stop now. lol)
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To: Phsstpok
"My great theory is that we have times of more... stuff, yeah, stuff... and times of less stuff. "

There do seem to be cycles (Maybe celestial cycles?). Some of the cycles are so far apart that we have not noticed them yet.

26 posted on 06/13/2003 8:00:20 PM PDT by blam
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To: blam
LOL!
27 posted on 06/13/2003 11:17:01 PM PDT by Travis McGee (----- www.EnemiesForeignAndDomestic.com -----)
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To: My back yard
I read many years ago that it was every 83 million.

I did some googling as I posted that piece and the most recent, consistent, numbers I came across indicate that the "wobble" causes us to cross the plane every 35 million years. The full cycle (all the way south of the plane to all the way north and back) is therefore around 70 million years. There's also a cycle where we traverse a particular arm of our galaxy every one hundred million years. Right now we're approaching the middle of the plane of the galaxy, from the south to north, and are in the middle of transiting the Orion arm of our galaxy. Is that the point at which we're in most danger (some suggest higher radiation levels mid plane and mid arm) or are we in most danger when we're out in the thin parts? Identified mass extinctions would indicate that we're approaching maximum risk (give or take a few million years), but what have we missed? What nasty things happen between mass events? Maybe we're in danger of big hits right now, but those are merely punctuation marks on otherwise good times. Maybe the periods between those times where there could be big events are simply general misery all the time, with no big events, good or bad (think snowball Earth)? Who knows.

I love cosmology! It really let's us know how little we know and how much there is yet to understand.

28 posted on 06/14/2003 9:36:45 AM PDT by Phsstpok
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To: PatrioticAmerican
JHCTFFS!
29 posted on 06/14/2003 9:42:57 AM PDT by Kenny Bunk
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To: blam
The first "Dark Age" was much earlier than 6th century A.D. Check out Jerry Pournelle's website for more. http://www.jerrypournelle.com/science/firstdark.html#1. and http://www.jerrypournelle.com/archives2/archives2mail/mail112.html#dark

There is much more on the site. Use the search engine on the homepage, http://www.jerrypournelle.com

30 posted on 06/14/2003 2:26:18 PM PDT by The Shootist
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To: My back yard
It could happen tomorrow.

The ugly truth is that we live in a chaotic galaxy.

In our solar system there are a few large bodies (Sun, Jupiter, and the planets), and lots of smaller objects (asteroids, comets, small moons etc.) The small objects are difficult to find, and often go unnoticed.

The same ratio of large to small objects also applies to the galaxy. For every star we can detect, there are thousands of smaller, dimmer objects we can't see. Many of them have been ejected from star systems and are wandering about the galaxy.

As long as we remain earthbound (as a civilization), we are just a target.

31 posted on 06/14/2003 3:29:31 PM PDT by e_engineer
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To: blam
My theory is that unproductive sodomites have their hands in civilizations coming to an end.
32 posted on 06/14/2003 3:37:47 PM PDT by SevenDaysInMay
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To: The Shootist
"The first "Dark Age" was much earlier than 6th century A.D. Check out Jerry Pournelle's website for more. "

Yup. this is the 1159BC event recorded in the tree rings worldwide.

33 posted on 06/14/2003 4:01:12 PM PDT by blam
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To: blam; FairOpinion; Ernest_at_the_Beach; StayAt HomeMother; SunkenCiv; 24Karet; 3AngelaD; ...
Literally and figuratively, a Blast from the Past
Please FREEPMAIL me if you want on, off, or alter the "Gods, Graves, Glyphs" PING list --
Archaeology/Anthropology/Ancient Cultures/Artifacts/Antiquities, etc.
The GGG Digest
-- Gods, Graves, Glyphs (alpha order)

34 posted on 05/01/2005 9:32:55 PM PDT by SunkenCiv (FR profiled updated Monday, April 11, 2005. Fewer graphics, faster loading.)
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To: blam
Re #15

Blam, I do believe that smaller impacts are responsible for decline of ancient civilization as well as migrations patterns. This is on top of volcanic eruptions, earthquakes, and climate changes.

Nature has shaped the course of civilizations more extensively than political or military events. This is indeed something many scholars refuse to confront because they staked so much of their credibility on the rise and fall of civilization mostly by human events.

Especially in ancient times, what human could do is puny in comparison with what nature could unleash. It is even true today. We can just take care of minor natural events. However, we are still at the mercy of major natural events.

35 posted on 05/01/2005 9:45:10 PM PDT by TigerLikesRooster
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