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Re: Undersea Meteor Crater Found

Hi Dinolisters,

The smoking gun of the Jurassic/Cretaceous boundary? "150 million years ago"
sounds awfully close to several other impact craters from around that
boundary. Remnants of a comet shower?

Just goes to show how tough the dinos were. What would happen to our species
if a mile and a half of rock hit the sea? Wouldn't be as easy as "Deep
Impact" made it out to be - and that wasn't pretty.

----- Original Message -----
From: Larry Dunn <majestic_cheese@yahoo.com>
To: <dinosaur@usc.edu>
Sent: Tuesday, February 09, 1999 2:41 PM
Subject: Undersea Meteor Crater Found

>Outer space hated the dinosaurs.  From AP online (copyright
>                        *  *  *
>Undersea Meteor Crater Found
>Filed at 11:45 a.m. EST
>By The Associated Press
>OSLO, Norway (AP) -- Norwegian scientists have discovered a rare
>undersea meteor crater in the Arctic left by a stunning collision
>millions of years ago, a researcher said Monday.
>The 25-mile-wide crater was found by a research team mapping the ocean
>floor 125 miles north of Norway, according to the January edition of
>Gemini, a magazine published by the SINTEF research institute in the
>northern city of Trondheim.
>Just seven such sub-sea craters are known to exist, compared with more
>than 150 on land, the magazine said.
>``Everything would indicate that it had a great impact on life,
>although not catastrophic,'' SINTEF senior geologist Atle Moerk said
>in a telephone interview Monday.
>The roughly 1 1/4-mile-wide meteor was traveling about 18,600 mph when
>it slammed into the Earth an estimated 150 million years ago, the
>magazine said.
>The impact caused a tidal wave that stretched from Canada to Russia,
>and sent a plume of hot debris into the atmosphere that darkened much
>of the planet, the article said.
>Samples from the Norwegian crater in August showed quartz grains
>deformed by the impact, and traces of iridium, a rare element more
>often found in space than on earth. The magazine also said the crater
>was unusually well preserved.
>The crater was named Mjoelnir, after the mythical hammer wielded by
>the Norse god of thunder, Thor.
>"You are interested in the unknown, the mysterious, the unexplainable --
that is why you are here.  And now, for the first time, we are bringing you
the full story of what happened ... on that fateful day."
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