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Giant Impact Near India -- Not Mexico -- May Have Doomed Dinosaurs
The Geological Society of America ^ | Oct 15, 2009 | Unknown

Posted on 10/15/2009 10:07:58 AM PDT by decimon

Boulder, CO, USA -- A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 million years ago.

Sankar Chatterjee of Texas Tech University and a team of researchers took a close look at the massive Shiva basin, a submerged depression west of India that is intensely mined for its oil and gas resources. Some complex craters are among the most productive hydrocarbon sites on the planet. Chatterjee will present his research at this month's Annual Meeting of the Geological Society of America in Portland, Oregon.

“If we are right, this is the largest crater known on our planet,” Chatterjee said. “A bolide of this size, perhaps 40 kilometers (25 miles) in diameter creates its own tectonics.”

By contrast, the object that struck the Yucatan Peninsula, and is commonly thought to have killed the dinosaurs was between 8 and 10 kilometers (5 and 6.2 miles) wide.

It's hard to imagine such a cataclysm. But if the team is right, the Shiva impact vaporized Earth's crust at the point of collision, leaving nothing but ultra-hot mantle material to well up in its place. It is likely that the impact enhanced the nearby Deccan Traps volcanic eruptions that covered much of western India. What's more, the impact broke the Seychelles islands off of the Indian tectonic plate, and sent them drifting toward Africa.

The geological evidence is dramatic. Shiva's outer rim forms a rough, faulted ring some 500 kilometers in diameter, encircling the central peak, known as the Bombay High, which would be 3 miles tall from the ocean floor (about the height of Mount McKinley). Most of the crater lies submerged on India's continental shelf, but where it does come ashore it is marked by tall cliffs, active faults and hot springs. The impact appears to have sheared or destroyed much of the 30-mile-thick granite layer in the western coast of India.

The team hopes to go India later this year to examine rocks drill from the center of the putative crater for clues that would prove the strange basin was formed by a gigantic impact.

“Rocks from the bottom of the crater will tell us the telltale sign of the impact event from shattered and melted target rocks. And we want to see if there are breccias, shocked quartz, and an iridium anomaly,” Chatterjee said. Asteroids are rich in iridium, and such anomalies are thought of as the fingerprint of an impact. **WHEN & WHERE**

The significance of the contemporaneous Shiva impact structure and Deccan volcanism at the KT boundary Sunday, 18 October 2009, 3:45-4:00 p.m. Oregon Convention Center, Portland Ballroom 256

View abstract, at http://gsa.confex.com/gsa/2009AM/finalprogram/abstract_160197.htm. **CONTACT INFORMATION**

For on-site assistance during the 2009 Annual Meeting, 18-21 October, contact Christa Stratton in the Newsroom (7:30 a.m.-6:00 p.m. PDT), Oregon Convention Center, Room D133, +1-503-963-5708.

After the meeting contact: Sankar Chatterjee Geosciences, Texas Tech University MS Box 41053 Lubbock, Texas 79409-3191, USA +1-806-794-3287


TOPICS: Astronomy; History; Science
KEYWORDS: astronomy; bangalore; catastrophism; dinosaurs; godsgravesglyphs; india; paleontology; science
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1 posted on 10/15/2009 10:07:58 AM PDT by decimon
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To: SunkenCiv

Bang galore ping.


2 posted on 10/15/2009 10:09:13 AM PDT by decimon
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To: decimon

bookmarking. Thanks.


3 posted on 10/15/2009 10:09:23 AM PDT by BlueStateBlues (Blue State business, Red State heart. . . . .Palin 2012----can't come soon enough!)
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To: decimon
Sure. Either that or giant Space Bunny-Rabbits from Alpha Centauri.

Amazing how the fairytales just keep changing.

4 posted on 10/15/2009 10:10:25 AM PDT by Dr. Thorne (Buy Gold and Guns Now!)
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To: decimon

I suspect that choosing the name for a crater responsible for the destruction of the known world (at the time) was a no-brainer.


5 posted on 10/15/2009 10:11:48 AM PDT by Little Pig (Vi Veri Veniversum Vivus Vici.)
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To: Dr. Thorne

What do you think is a fairy tale, the fact that meteors impact planets or that dinosaurs are extinct?


6 posted on 10/15/2009 10:16:45 AM PDT by ruiner
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To: ruiner

I think his LALALALICANTHEARYOU is in response to the idea that dinosaurs were not contemporaneous with more modern lifeforms.


7 posted on 10/15/2009 10:20:10 AM PDT by Little Pig (Vi Veri Veniversum Vivus Vici.)
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To: decimon

This can’t be right According to many Freepers the Earth is only 6000 years old. I read it on the internet so it’s definitely true.


8 posted on 10/15/2009 10:27:44 AM PDT by strider44
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To: decimon

gotta love the lies. does anyone even belive this crap


9 posted on 10/15/2009 10:36:03 AM PDT by remaxagnt (`)
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To: ruiner
The supposition that a meteor killed the dinosaurs. It is complete speculation. Next week some esteemed scientist will come up with another one and all the rest will nod their heads and say, "Uh huh. Yup. He's right. True. True."

Science has lost it's way - scared away from rigorously honest investigation and theorizing by political correctness and the fear of funding losses.

10 posted on 10/15/2009 10:46:02 AM PDT by Dr. Thorne (Buy Gold and Guns Now!)
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To: strider44

i belive the earth is around 6 thousand years


11 posted on 10/15/2009 10:47:11 AM PDT by remaxagnt (`)
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To: Dr. Thorne

I think a super large dinosaur called the Algoreathon caused the mass extinction.


12 posted on 10/15/2009 11:02:18 AM PDT by OrioleFan (Republicans believe every day is the 4th of July, democrats believe every day is April 15)
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To: decimon

Shiva is an appropriate name.


13 posted on 10/15/2009 11:02:39 AM PDT by pallis
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To: decimon
Some complex craters are among the most productive hydrocarbon sites on the planet.

When these meteors hit they must crush a gazillion dinosaurs at a time to generate that much oil at the impact site.

14 posted on 10/15/2009 11:07:11 AM PDT by VeniVidiVici (Hey Obama. Where is Osama Bin Laden?)
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To: pallis
Shiva is an appropriate name.

Now I have become Death, the destroyer of worlds.

15 posted on 10/15/2009 11:11:20 AM PDT by decimon
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To: decimon

I was just reading about this a few days ago.


16 posted on 10/15/2009 11:24:56 AM PDT by happinesswithoutpeace ( There was a hole here. It's gone now)
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To: decimon; 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...
Thanks decimon for the topic and ping.
decimon wrote: Bang galore ping.
You, sir, are a card.
 
Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

17 posted on 10/15/2009 2:14:05 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
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To: SunkenCiv
You, sir, are a card.

Joker or Ace?

18 posted on 10/15/2009 3:16:02 PM PDT by decimon
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To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...

· join list or digest · view topics · view or post blog · bookmark · post a topic · subscribe ·

 
Gods
Graves
Glyphs
Thanks decimon. Pinging this one because A) it's bound to be of interest and B) to avoid any duplications (or at least, try to ;').

To all -- please ping me to other topics which are appropriate for the GGG list.
GGG managers are SunkenCiv, StayAt HomeMother, and Ernest_at_the_Beach
 

·Dogpile · Archaeologica · ArchaeoBlog · Archaeology · Biblical Archaeology Society ·
· Discover · Nat Geographic · Texas AM Anthro News · Yahoo Anthro & Archaeo · Google ·
· The Archaeology Channel · Excerpt, or Link only? · cgk's list of ping lists ·


19 posted on 10/15/2009 3:25:16 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
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To: decimon

Hmmmm.

What if both (Yucatan and Shiva) hit about simultaneously?

Wish they had an approximate age on the crater.


20 posted on 10/15/2009 3:43:23 PM PDT by FrogMom (No such thing as an honest democrat!)
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To: SunkenCiv

Three-dimensional reconstruction of the submerged Shiva crater (~500 km diameter) at the Mumbai Offshore Basin, western shelf of India from different cross-sectional and geophysical data. The overlying 4.3-mile-tick Cenozoic strata and water column were removed to show the morphology of the crater.

21 posted on 10/15/2009 3:45:12 PM PDT by Fred Nerks (fair dinkum)
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To: FrogMom
What if both (Yucatan and Shiva) hit about simultaneously?

If they were chips off of the same old block then that should be possible.

22 posted on 10/15/2009 3:49:37 PM PDT by decimon
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To: Fred Nerks

Thanks FN!


23 posted on 10/15/2009 3:59:57 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
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To: decimon

Jack, because, y’know, that’s the same as prince. ;’)


24 posted on 10/15/2009 4:03:47 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
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To: decimon

touche! you win.


25 posted on 10/15/2009 4:18:39 PM PDT by ElkGroveDan (Get rid of the dirty moderates. Get rid of them,)
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To: Dr. Thorne
That is ridiculous.

Science changes with the FACTS. If new facts come in, they should change things. Are you suggesting they simply ignore new evidence, sweep it under the rug, slap their hands together and walk away?

There's a lot of new evidence that global warming isn't. Yet some politicians and some political scientists are ignoring it. That is far more disastrous to us all than changing with the new data.

At least don't confuse the majority of the true scientists with those in the minority who are prostituting themselves for grants proving political points.

26 posted on 10/15/2009 4:40:29 PM PDT by Alas Babylon!
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To: Alas Babylon!

Science no longer deals in theory. They assert that their theories ARE facts. Nowadays scientists theorize along leftist, politically correct lines and then often don’t even bother to do the research! Ask Peter Duesberg if there is any proof that HIV causes AIDS. Ask Lord Monckton what the proof is that humanity is causing Global Warming. These are examples of what I’m saying.


27 posted on 10/15/2009 4:51:27 PM PDT by Dr. Thorne (Buy Gold and Guns Now!)
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To: Dr. Thorne

That’s just not true. You’re confusing science with what the journalists in the driveby media tell you is science.

Stop and think: Lord Monckton is also a scientist!


28 posted on 10/15/2009 4:55:24 PM PDT by Alas Babylon!
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To: decimon; FrogMom
FrogMom ~ What if both (Yucatan and Shiva) hit about simultaneously?

decimon ~ If they were chips off of the same old block then that should be possible.

Indeed. We know for a fact that this is possible from watching the Shoemaker-Levy 7 strikes on Jupiter.

At least those of us who believe in telescopes do...

29 posted on 10/15/2009 4:55:46 PM PDT by null and void (We are now in day 266 of our national holiday from reality. - 0bama really isn't one of US.)
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To: SunkenCiv

Ah. I see you know Jack...


30 posted on 10/15/2009 4:56:38 PM PDT by null and void (We are now in day 266 of our national holiday from reality. - 0bama really isn't one of US.)
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To: null and void
We know for a fact that this is possible from watching the Shoemaker-Levy 7 strikes on Jupiter.

Thanks. I was thinking of that but couldn't come up with the name.

31 posted on 10/15/2009 5:02:14 PM PDT by decimon
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To: remaxagnt
gotta love the lies. does anyone even belive this crap

Yes, I believe that a large meteor struck off the coast of India, creating a very large crater.

Do you think the earth was created by God with this crater in place?

32 posted on 10/15/2009 5:09:58 PM PDT by Doe Eyes
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To: Alas Babylon!

I think the problem is that scientists speak in certainties even when they know that they are dealing with a thinly tested theory. I’m sure the hedge much more in their papers that are printed in science journals but too often they come across as if they “know” something when they merely have some amount of evidence which leads them to believe something. I think this can be seen in everything from nutrition to global warming.


33 posted on 10/15/2009 5:10:22 PM PDT by Straight Vermonter (Posting from deep behind the Maple Curtain)
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To: strider44

Yes, there are Freepers who believe that the earth is 6000 years old, that Adam and Eve lived among the dinosaurs (and that dino bones were put on earth by the old man in the sky to “fool us”).


34 posted on 10/15/2009 5:11:53 PM PDT by Clemenza (Remember our Korean War Veterans)
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To: decimon

Thought so...


35 posted on 10/15/2009 5:21:01 PM PDT by null and void (We are now in day 266 of our national holiday from reality. - 0bama really isn't one of US.)
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To: Alas Babylon!
Man, you are just not getting it. Monckton is calling out the scientists who are really political advocates and insisting that they prove their theories. It is these scientists (actual scientists - university department heads, chair holders, peer review editors, etc.) who are protecting their research grants and their progressive bona fides.
36 posted on 10/15/2009 5:23:31 PM PDT by Dr. Thorne (Buy Gold and Guns Now!)
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To: Doe Eyes

dont know wasnt there


37 posted on 10/15/2009 6:25:11 PM PDT by remaxagnt (`)
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To: Dr. Thorne

Really? And whats your explanation?


38 posted on 10/15/2009 7:00:41 PM PDT by Kozak (USA 7/4/1776 to 1/20/2009 Reqiescat in Pace)
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To: remaxagnt
i belive the earth is around 6 thousand years

I'm surprised you believe its round, period.
39 posted on 10/15/2009 7:02:08 PM PDT by Kozak (USA 7/4/1776 to 1/20/2009 Reqiescat in Pace)
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To: SunkenCiv; decimon
Love those theories that end with a bang....maybe an impact started a cascade of events leading to the dinosaur demise but thinking it was something smaller and more virulent than a dust cloud. The fallout may have damaged plant life, cutting off ample food supply to herbivores, which in turn were in a weakened state and more susceptible to disease. A disease ravaged food supply effected viability of carnivores and the lack of predation or scavenging the depleted populations allowed small proto mammals to flourish and succeed, robbing nests of eggs of the survivors further exacerbated (I always wanted to use that word...somewhere) the plight of the mega fauna.

Proto mammals profited on the cascading events at the end of Dinosaur rule through raids on unprotected dino progeny, adaptation to changing market availability and ruthless exploitation of weakened or failed competitors.

Ergo, the proto mammalians were the first Capitalists and Capitalism killed the dinosaurs!
40 posted on 10/15/2009 10:04:02 PM PDT by BIGLOOK (Government needs a Keelhauling now and then.)
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To: BIGLOOK
Spitzer Sees the Aftermath of a Planetary Collision | Universe Today | Jan. 10, 2005 | Dolores Beasley and Gay Yee Hill | Posted on 01/13/2005 8:50:18 PM PST by SunkenCiv

41 posted on 10/16/2009 12:42:47 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
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To: null and void
Image and video hosting by TinyPic

42 posted on 10/16/2009 2:22:10 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
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To: remaxagnt; strider44; cogitator

i belive the earth is around 6 thousand years

...

Well, er, no.

The earth is a round about 8000 miles across. Not a 6000. 8<)


43 posted on 10/16/2009 2:29:52 AM PDT by Robert A. Cook, PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
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To: decimon

Certainly is reasonable that there could be a second crater from the same comet/collision.

Jupiter was clobbered recently by a series of 8 fragments, and the Decca Traps lava flows are at the same time period. Thru-earth resonances of the one Yucatan peninsula collision don’t seem to be large enough to create enough of a hole to release that much lava volume.


44 posted on 10/16/2009 2:32:19 AM PDT by Robert A. Cook, PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
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To: SunkenCiv; decimon
Thanks decimon for the topic and ping.

decimon wrote: Bang galore ping.

As opposed to a Bangalore torpedo blowing a hole in a theoretical pipeline?

45 posted on 10/16/2009 2:36:19 AM PDT by Robert A. Cook, PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
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To: SunkenCiv; decimon
Thanks decimon for the topic and ping.

decimon wrote: Bang galore ping.

As opposed to a Bangalore torpedo blowing a hole in a theoretical pipeline?

46 posted on 10/16/2009 2:36:38 AM PDT by Robert A. Cook, PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
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To: decimon

one-eyed-jack.


47 posted on 10/16/2009 3:32:53 AM PDT by xcamel (The urge to save humanity is always a false front for the urge to rule it. - H. L. Mencken)
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To: null and void
This theory might be much closer to right than we think. There is another huge crater under the Ross ice shelf, from about the same period of time.
Creationists simply keep the pain killer racket in business.
48 posted on 10/16/2009 3:37:13 AM PDT by xcamel (The urge to save humanity is always a false front for the urge to rule it. - H. L. Mencken)
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To: xcamel
one-eyed-jack.

And wild.

49 posted on 10/16/2009 4:20:35 AM PDT by decimon
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To: decimon

Just as with Shoemaker-Levy breaking up to cause a string of collisions, there is no reason why there couldn’t have been multiple impacts at or near the same time.


50 posted on 10/16/2009 5:13:32 AM PDT by Question_Assumptions
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