Skip to comments.
Maine Crater Related to Dino-Killer Asteroid?
Discovery News ^
| April 3, 2003
| Larry O'Hanlon
Posted on 04/05/2003 9:39:18 PM PST by SteveH
Maine Crater Related to Dino-Killer Asteroid?
By Larry O'Hanlon, Discovery News
April 3, 2003 The evidence is still skimpy, but there is a chance that the dino killer asteroid was not alone when it walloped the Earth 65 million years ago.
A possible second crater, at least as big or bigger than the famous Chicxulub crater off Mexico's Yucatan peninsula, may have been created by a second hit moments after Chicxulub and off the coast of Maine.
"It probably is a crater, but we really don't have age data," said marine geologist Dallas Abbott Lamont-Doherty Earth Observatory at Columbia University.
What makes Abbott suspect a crater is a large and unexplained difference in the magnetism of the crust in the Gulf of Maine. Then there is an arrangement of ridges on land that channel rivers and streams in Maine and Massachusetts along arcs that might be ridges of the western part of an eroded crater, said Dominic Manzer a NASA spacecraft engineer.
Abbott and Manzer presented their very preliminary work on what they are calling the Small Point crater late last week at a regional meeting of the Geological Society of America in Halifax, Nova Scotia.
Other asteroid and crater specialists are not so optimistic that the Gulf of Maine will yield a crater that corresponds with the end of the dinosaurs the Cretaceous-Triassic (K-T) boundary 65 million years ago.
"There is no evidence of an impact event," said David Kring of the Lunar and Planetary Laboratory at the University of Arizona. What's more, if there were a second impact, said Kring, there would be a second blanket of debris at the K-T Boundary, which so far is not there.
Abbott agrees that the evidence is slim at this point. In fact, glaciers of past ice ages probably scoured away all the real rock evidence on the surface long ago, she said. That's why she hasn't tried to publish any official papers on the matter.
Instead, she intends to start looking further south, in the Martha's Vineyard area, for any impact-related rocks of the right age that might have been dropped there after the glaciers retreated.
If there was a double impact, said Manzer, it could have been that the asteroid or comet broke up before hitting Earth, leaving a rapid-fire line of craters, as has been seen on other planetary bodies in the solar system.
TOPICS: Miscellaneous
KEYWORDS: asteroid; asteroids; astronomy; catastrophe; catastrophism; chicxulub; craters; cretaceous; dallasabbott; dinosaur; dinosaurs; godsgravesglyphs; impact; ktboundary; maine; meteor; meteors; paleontology; science; tertiary; triassic
did not find this in a search(?)
1
posted on
04/05/2003 9:39:18 PM PST
by
SteveH
To: SteveH
2
posted on
04/05/2003 9:44:50 PM PST
by
blam
To: SteveH
Cool stuff.
3
posted on
04/05/2003 9:54:04 PM PST
by
happygrl
To: SteveH
Map! I want to see a map!
4
posted on
04/05/2003 10:19:13 PM PST
by
FrogMom
To: SteveH
"A possible second crater, at least as big or bigger than the famous Chicxulub crater off Mexico's Yucatan peninsula, may have been created by a second hit moments after Chicxulub and off the coast of Maine." And how do they know it was "moments after"?
--Boris
5
posted on
04/05/2003 11:32:29 PM PST
by
boris
(Education is always painful; pain is always educational)
To: SteveH
The "Discovery Channel" did a bit on asteroids this evening. (Last evening now). Pretty damned interesting. Such a mathematician's game. One 1/2 mile wide one and it's game over for billions. I'm humbled.
6
posted on
04/05/2003 11:37:54 PM PST
by
Glenn
To: FrogMom
Map! I want to see a map! Oh my, the article did not come with a map. Whatever shall we all do? Perhaps this one will help ;-).
7
posted on
04/06/2003 12:46:54 AM PST
by
SteveH
To: blam
Nifty thread! If you have a bump list for such info please feel free to put me on it! Thanks!
8
posted on
04/06/2003 12:52:13 AM PST
by
SteveH
To: boris
And how do they know it was "moments after"? I imagine it has may have become rather fashionable to allude to multiple successive asteroid impacts after the Shoemacher-Levy Jupiter impact pattern...(?)
9
posted on
04/06/2003 12:55:36 AM PST
by
SteveH
To: SteveH
Shoemacher-Levy Jupiter impact pattern...(?) Shoemacher-Levy was a comet, the mechanism for a comet breaking up in space is much better known than that of an asteroid. There are many examples of comets fragmenting.
Multiple impacts may tend to point to a comet as being the agent of the death of the Dinosaurs.
10
posted on
04/06/2003 1:08:08 AM PST
by
Mike Darancette
(Soddom has left the bunker.)
To: SteveH
Nope, wrong map. That's the one where we WANT a meteor to hit!
11
posted on
04/06/2003 8:29:39 AM PDT
by
FrogMom
To: Mike Darancette
Aren't they thinking that we got hit repeatedly over the course of about 10 years?
Shoemaker (
http://www.phys.uit.no/fys120/bibliotek/articles/Hitting_Home.pdf) says that there are two very-close-together layers of iridium at the K-T boundary far enough apart for plants to have started growing in-between.
He mentions Chicxulub, Manson in Iowa and Kara in Russia as three big impacts.
This could explain why every few months we see an article that says, "THIS is the one that wiped out the dinosaurs!".
12
posted on
04/06/2003 8:56:07 AM PDT
by
FrogMom
To: FrogMom
Nope, wrong map. That's the one where we WANT a meteor to hit! LOL! ;-)
13
posted on
04/06/2003 1:01:18 PM PDT
by
SteveH
To: SteveH
I've always wondered whether the large semicircle in the southern Gulf of St. Lawrence was an ancient meteor crater. This structure, if it is a structure, is some 200 miles across.
To: 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; BBell; ...
Note: this topic is from April 5, 2003.
Gotta look for followup, subsequent stories, sometime later. Found this while fiddling with the the entire list from the dinosaur / dinosaurs keywords here on FR.
15
posted on
08/23/2009 6:30:18 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
All the dinosaur / dinosaurs topics, chrono sort, limited editing (mostly automated, I used my little Chipmunk BASIC gizmo used to process the GGG digest files), but I did remove the "dinosaur media" and other intrusions.
- Primate ancestor lived with dinos
- Dino-Era Vomit Fossil Found in England
- Home School Expedition Uncovers Rare Allosaur And Giant Sauropod
- Weird Fossilized Flying Reptile 'A Vision of Hell'
- Dinosaur Ancestor's Vision Possibly Nocturnal; Researchers Recreate 240-Million Year Old Protein
- New Dino Resembles T. Rex, B. Bunny
- Living dinosaurs
- "Mummified" Dinosaur Discovered In Montana
- "Mummified" duckbill dinosaur provides RARE clues (Excerpted Account)
- Dinosaur Ancestor's Vision Possibly Nocturnal
- Scientist Says Ostrich Study Confirms Bird "Hands" Unlike Those Of Dinosaurs
- New Study Suggests Missing Link That Explains How Dinosaurs Learned To Fly
- Chicks Offer Insight Into Origin of Flight
- Dinosaurs Met End Before K-T Collision
- Mystery of the Eltanin Antenna
- Four-winged dinosaur makes feathers fly
- New four-winged feathered dinosaur?
- Dinosaur invasion! Discovery Channel to produce 'dino-drama' in March
- Dinosaur Trees Discovered In China
- Dinosaur Cannibal: Fossil Evidence Found in Africa
- Cannibal dinosaurs revealed by tooth marks
- Maine Crater Related to Dino-Killer Asteroid?
- Mass-extinction controversy flares again (Chicxulub crater kills dinosaurs, or not?)
- Dinos Doomed By Climate Change: "Current Studies Over-estimate Effect Of K/T Asteroid Impact"
- Move over T-Rex, Rajasaurus narmadensis is here (India)
- Dino-blood and the Young Earth: YECs embarass Christians
- Dinosaur egg found in India
- Antarctic Lost Worlds - 2 New Dinosaurs Species Found
- Report questions role of Mexico crater in mass extinction
- Dinosaur impact theory challenged
- Asteroid Theory of Dinosaur Extinction Questioned
- Dinosaur death theory 'just a myth' -
- Antarctica 'Lost World' Found
- Police hunt for PNG dinosaur
- Scientists find imprint of dinosaur posterior in Utah rock
- Scientists Find Dinosaur Tracks in Utah [Skid Marks]
- A World Ruled By Fungi
- Lack of Females May Have Done in Dinosaurs
- Lack of females may have done in dinosaurs, says study
- Darwin-Free Fun for Creationists
- New kind of dinosaur discovered in Montana
- Dinosaur Skull Provides Geological Clues
- Dino impact gave Earth the chill
- Dinosaur Footprints Found Off Sweden
- Christian dinosaur hunters dig for signs of Biblical dragons [Live thread]
- Fossil Evidence Backs Dinosaur Extinction Theory
- An auction bargain for a boy: a $550 dinosaur horn
- Dinosaur Graveyard Is Unearthed
- Dark Days Doomed Dinosaurs, Say Purdue Scientists
- Study: Dinosaurs Died Within Hours After Asteroid Hit
- Scientist Says Fossils From Dinosaur Discovered in Southwestern Japan
- T. Rex Had Teen Growth Spurt, Scientists Say
- Dinosaur kangaroos spotted in Chile
- Feathered ancestor of T. rex unearthed [Transitional species]
- Early T-Rex Relative Had Feathers -- Study
- Fossil Is Proof of Mammal Eating Dinosaur
- Prehistoric badger had dinosaurs for breakfast
- Fossil shows baby dinosaur in mammal's belly
- Dino dinner hard to swallow?
- Thai man arrested for smuggling dinosaur fossils
- South American Dinosaur Find Modifies Theories
- PRESERVED T. Rex Soft Tissue RECOVERED (Pic)
- Tissue Find Offers New Look Into Dinosaurs' Lives
- T. rex reveals key to Jurassic Park
- Dinosaur Find Takes Scientists Beyond Bones
- Young-Earth "Scientists" Jump the Gun on Dino Find
- Dinosaur's soft tissue recovered (evolution)
- Eggs Found Inside Dinosaur Fossil
- Reproductive riddle unscrambled [Fossilized eggs found inside dinosaur supports a link with birds]
- Scientists Find T.rex Relative in Georgia (Appalachiosaurus montgomeriensis)
- Fossil find yields new dinosaur species
- Stegosaur Plates And Spikes For Looks Only
- Arachnid's clue to dino wipeout
- Ken Ham's Dinosaurs Trample Truth
- Would you Adam 'n' Eve it ... dinosaurs in Eden (CRE-VO) Mixing science with creationism
- Short-necked dinosaur challenges accepted theory
- Researchers Find Sauropod Dinosaur Skulls (big dinosaurs with little heads)
- Dinosaur bones show T. rex link to birds
- Not Quite Barney, but Showing a Softer Side
- Dinosaur footprint found in Alaska national park
- Antarctica 'Lost World' Found
- Not the Biggest Man on Campus, but Surely the Biggest Foot [why is a TX dinosaur track in B'klyn?]
- Adam, Eve and T. Rex
- We're just a few dinosaurs short of a full tank (Dave Barry)
- Dinosaurs may have been a fluffy lot ~~ now they tell us....
- Pterosaur! (Evolutionists confounded again)
- Dinosaurs may have been a fluffy lot
- In Evolution Debate, Creationists Are Breaking New Ground
- Creationism, Intelligent Design, and Evolution
- Did feathered dinosaurs exist?
- Geology Picture of the Week, October 9-15, 2005: Lonar Crater, India
- Ichthyosaur bones found off U.K. coast
- Tracks of Swimming Dinosaur Found in Wyoming
- Evidence of Swimming Dinosaur Found
- Dinosaurs in India may have fed on grass
- Paleocene dinosaurs and the reinforcement syndrome (Creation vs. Evolution)
- 'Fossil fuel' theory takes hit with NASA finding
- Max's Weekend Movie Review - Jurassic Park
- Dinosaur poop shows grass is older than it seems
- New Mammal Named After Chocolate Giant
- Fossil Yields Surprise Kin of Crocodiles
- One Theory Down, Dino's Bizarre Appendage Still Puzzles
- 'Jurassic beaver' find stuns experts
- Ancient 'tanker truck': Scientists glean clues from dinosaur find
- The scrambling continues (Fallout over T-rex bone tissue continues)
- "This Is a Problem": Dino-Feather Story Gets Scaly (Creation/Evolution)
- Heads up: the dinosaur with the longest neck (discovered)
- New Dinosaur Resembles Large Turkey
- Details Revealed About Huge Dinosaurs
- Scientists Describe Huge Meat-Eating Dinosaur (Remains Discovered In Argentina)
- Dinosaur Shocker (YEC say dinosaur soft tissue couldn't possibly survive millions of years)
- Fetus' Feet Show Fish, Reptile Vestiges
- Dragonlike Dinosaur Skull Donated to Museum
- New Dinosaur Species Gets A Touch Of Harry Potter With Help From PHMC Staffer
- Not Your Father's T-Rex
- Dinosaurs in American Indian Petroglyphs
- New dinosaur found looking like dragon - named after Harry Potter dragon
- Giant Crater Found [in Antarctica]: Tied to Worst Mass Extinction Ever [Permo-Triassic]
- Sensational find: The mini-dinosaurs from the Harz Mountains
- Oldest known bird found in China
- Dinosaurs still roam the earth...with PPS
- New Study Shows Tyrannosaurus Rex Evolved Advanced Bird-Like Binocular Vision
- Newfound Reptile Swam in Dinosaur Era (Umoonasaurus - 'Killer whales of the Jurassic')
- Old found next to new; Dinosaur herd bones uncovered near Edmonton subdivision
- Math and fossils resolve a debate on dinosaur metabolism
- Bigger Dinosaurs had warmer blood
- The Living Was Easy for Young Tyrannosaurs
- Pterosaur-like Creatures Reported in Papua New Guinea
- Basic Evolutionist Time Sandwich
- Museum uses bible to tell earth's history
- Jurassic Park (New Find in Wyoming)
- Discovery of the Oldest-Known Ceratopsian, an Ancestor of Triceratops and Other Horned Dinosaurs
- Mummified Brachylophosaurus holds secrets millions of years old
- There may be a dinosaur waiting for you
- Global warming taking earth back to dinosaur era
- Dinosaur's reputation challenged
- CU-Boulder Research Team Discovers Evidence Of Gut Parasites In Dinosaur
- Rare fossil find on roadside (Extraordinarily preserved pterosaur)
- Dino Skin Preserved in Rare Fossil Find
- Scientist: ONE IMPACT ONLY (Yucatan) Killed Off Dinosaurs
- More than 600 report illness related to Dinosaur Bar-B-Que [Syracuse, not Bedrock]
- Germs Found In Amber Lived With First Dinosaurs
- Prehistoric 'two-headed Chinese dragon' revealed (Baby dino had two heads)
- Giant dinosaur bones found in Spain (sauropod; estimated to weigh 40 to 48 tons)
- Scientific debate heats up over fate of Australia's dinosaurs (aborigines killed them)
- Dino-mite discovery: Rare double discovery fuels debate over fossil sales
- Prehistoric Reptile Fossile Found With Two Heads
- Bird wings evolved from biplane dinosaurs
- Museum IDs new species of dinosaur (Albertaceratops nesmoi)
- Cleveland Museum of Natural History Scientist Discovers New Horned Dinosaur Genus
- Little genomes for big dinosaurs
- Dinosaurs' den unearths new theory on extinction
- Study: Dinosaur demise didn't spur species
- Rediscovering the Dinosaurs (Carnegie Museum of Natural History revamping entire dino display)
- Ancient T. rex and mastodon protein fragments discovered, sequenced
- Dinosaur protein sequenced - Lucky find shows up record-breaking fossil.
- Dinosaur research backs link to birds
- T. rex's secret weapon? A stout snout
- Dinosaur 'feathers' are no such thing
- Cleaning the T. Rex cage must have been interesting
- Swimming dino enters the history books
- Creation Museum Marries Adam, Eve and Dinosaurs
- Dinosaurs frolic with Adam and Eve at creationism museum
- 'Kitchen science' reveals dinosaurs died in agony
- China finds new species of big, bird-like dinosaur
- Dinosaurs' Rise Was Slow, Not "Lucky Break," New Fossils Suggest
- Fossil finds shake up dinosaur theories
- Dinosaur Bones: The Latest Status Symbol
- Dinosaur mass grave discovered in Switzerland (Plateosaurus bones in abundance in the FRick area?)
- T-rex versus Beckham? Sorry, David, you're lunch
- Asteroid Breakup May Have Doomed Dinosaurs
- Some Dinos May've Survived the Cataclysm
- Funny-Looking Dinosaur Found in China
- Duck-billed dinosaur amazes scientists
- 'T.rex footprint' found by British dinosaur hunter: report
- 105-Foot Dinosaur Unearthed in Argentina
- Emory paleontologist reports discovery of carnivorous dinosaur tracks in Australia
- Huge Dinosaur Skeleton Unearthed
- Dinosaur Deaths Outsourced to India?
- Volcanic Eruptions, Not Meteor, May Have Killed The Dinosaurs
- Volcano Theory of Dino Die-Off Gets New Support
- Dinosaurs breathed like penguins
- Dinosaur found with vacuum-cleaner mouth
- Dinosaur Graveyard May Unearth New Reasons For Their Extinction
- Mummified dinosaur may have outrun T. Rex (Dakota the DinoMummy, a duckbilled Hadrosaur)
- Jamie's dig unearths a monster
- Amazing find of dinosaur 'mummy'
- Insect Attack May Have Finished Off Dinosaurs
- Bald truth about dinosaur feathers
- Titan Has More Oil Than Earth
- Ancient Flying Reptiles Likely Had Sex As Youths
- Workers Uncovering Mummified Dinosaur
- Gas-belching volcanoes may have killed dinosaurs
- Dinosaur Fossil Found on Bus in Peru
- "Dino Killer" Asteroid Was Half the Size Predicted?
- T. Rex Confirmed As Great Grandaddy Of All Birds
- Tests Confirm T. Rex Kinship With Birds
- Where Do the Dinosaurs Fit? [Open]
- Oz dino bone defies drift theory
- Aussie dinosaur bone takes bite out of theory of continental drift
- Jurassic Park comes true: How scientists are bringing dinosaurs back to life
- BLM announces 'major' dinosaur find in Utah
- Myth of Dwarf Dinos in Dracula Country Confirmed
- Major Jurassic Dinosaur Find Announced
- Real Dinosaur on the Loose in a Museum Makes Learning Fun, Extremely Dangerous (Video)
- Dinosaurs ran out of stamina in the evolutionary race
- Soft tissue in fossils still mysterious: Purported dinosaur soft tissue may be modern biofilms
- Surprise: The Bible is scientifically ahead of secular scientists!
- Dinosaurs Diversified Over Time, Not Suddenly (Wouldn't ALL fossil fuel contain DNA?)
- Dinosaurs helped build the pyramids, school director says
- Smallest Dinosaur in North America Discovered
- Cretaceous Chicken: Bus-Sized Dinosaur Breathed Like Birds Do
- 'A dinosaur dance floor;'Numerous tracks at Jurassic oasis on Arizona-Utah border
- Dinosaur Dance Floor: Numerous Tracks at Jurassic Oasis on Arizona-Utah Border
- Dinosaur inspires flying robot
- Huge dinosaur discovery in China: state media (including the remains of an enormous "platypus")
- Experts: Shandong dinosaur fossil field "world's largest"
- Scientists say comet killed off mammoths, saber-toothed tigers
- Texas Legislature may name new species the official state dinosaur
- Dinosaur fossils suggest speedy extinction - Arctic find challenges the idea that the massive...
- 111-year-old reptile becomes a dad
- Did Dinosaurs Turn Into Birds?
- Missing dinosaur link found in Argentina (omnivore, it ate everything inc. plants and meat)
- "Predator X" Arctic sea monster's giant bite
- Miniature carnivore dinosaurs roamed North America (the size of a small chicken)
- Fossil hints at fuzzy dinosaurs
- Amazing Fossils: Do They Help Darwin?
- A Creationist Museum In California
- Gang of Juvenile Dinosaurs Discovered
- Strange Discovery on Table Mountain
- Dinosaur herd buried in Noah's Flood in Inner Mongolia, China
- Tyrannosaur 'Missing Link' Among New Dinosaurs From China
- Bang goes that theory: Dinosaur extinction 'occurred 300,000 years AFTER asteroid impact'
- Dinosaur Blood Protein, Cells Recovered (yet more evidence for Young Earth Creation!!!)
- First dino 'blood' extracted from ancient bone (more evidence for young earth creation!)
- Oldest Dinosaur Protein Found -- Blood Vessels, More
- News to Note, May 2, 2009: A weekly feature examining news from the biblical viewpoint
- Fossil Backs Theory Linking Dinosaurs To Birds
- Expert: Volcanoes in Today's India Wiped Out Dinos
- Maybe an Asteroid Didn't Kill the Dinosaurs
- New dinosaur species possible in Northwestern Alberta (Better avoid Alberta)
- Hadrosaur Soft Tissues Another Blow to Long-Ages Myth (first T. rex, then another T. rex, now this!)
- Can We Really Reverse-Engineer a Dinosaur?
- Creation museum still draws crowds, ruffles feathers after 2 Years
- Similar Dino Tracks Discovered In Wyoming, Scotland
- Did an American dinosaur swim over the sea to Skye 170 million years ago?[Scotland]
- Birds Didn't Evolve from Dinosaurs (Evos forced to invent an even older common ancestor!)
- Dinos to Birds evolution doubted
- The 'Birds Come First' hypothesis of dinosaur evolution
- Fossil Solves Mystery of Dinosaur Finger Evolution
- Dinosaurs May Have Been Smaller Than Previously Thought (Svelteosaurus)
- Paleontologists brought to tears, laughter by Creation Museum
- Pot-Bellied Dinosaur Skeleton Found in Utah
- New Dinosaur Had Potbelly, Claws Like Wolverine
16
posted on
08/23/2009 6:39:48 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: SunkenCiv
Truly an amazing compilation Civ!
Ran across a minor problem: None of the links would open. Took me a couple of minutes to figure out the malfunction and it will be immediately apparent to you if you go back and take a look at the link addresses. There's an extra "/focus" in the addy that needs to go away. Now, being an industrious sort, and coincidentlally figuring out a quick and dirty, not to mention painless fix, once more with feeling:
17
posted on
08/23/2009 11:17:21 PM PDT
by
ForGod'sSake
(You have two choices and two choices only: SUBMIT or RESIST with everything you have!)
To: ForGod'sSake
Whoops. [blush] That happened due to the way I do the chrono sort (and because I was careless, mostly). Thanks for taking the time to fix it!!!
18
posted on
08/24/2009 3:30:08 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: SunkenCiv
19
posted on
08/24/2009 5:35:29 PM PDT
by
ForGod'sSake
(You have two choices and two choices only: SUBMIT or RESIST with everything you have!)
20
posted on
12/26/2014 12:44:30 PM PST
by
SunkenCiv
(https://secure.freerepublic.com/donate/ _____________________ Celebrate the Polls, Ignore the Trolls)
Disclaimer:
Opinions posted on Free Republic are those of the individual
posters and do not necessarily represent the opinion of Free Republic or its
management. All materials posted herein are protected by copyright law and the
exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson