[meteorite-list] Tagish Lake Meteorite Stays in Canada

From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Mon Apr 24 20:45:20 2006
Message-ID: <200604250024.RAA02342_at_zagami.jpl.nasa.gov>

http://www.theglobeandmail.com/servlet/story/RTGAM.20060422.wxmeteorite22/BNStory/Science/home

Look! On the ground! It's $750,000 worth of rock!
DAWN WALTON
Globe and Mail
April 22, 2006

Calgary - To scientists, they are priceless clues about the origins of
life, but now, six years after he found some frozen meteorite fragments
that weigh roughly as much as two blocks of butter, a Canadian has
cashed in.

The price tag: $750,000.

And as a bonus, the space rocks that landed in Canada and were poised to
go to the United States are staying here.

"It's been a little tortuous at times," Jim Brook said yesterday from
his home in Atlin, in the northwest corner of British Columbia, not far
from where the meteorite crashed to Earth.

"There was no significant interest in Canada for quite a while, and
eventually, we were able to get something lined up, so I'm glad they're
staying," Mr. Brook said.

The meteorite fragments will be housed at the University of Alberta in
Edmonton and the Royal Ontario Museum in Toronto.

For almost seven million years, the space rock travelled at 10
kilometres a second and covered a distance of a half-billion kilometres
before it collided with the Earth's atmosphere in January, 2000.

The 200-tonne rock was between 25 and 30 kilometres above the ground
when it exploded and emerged as a fireball over parts of British
Columbia and Yukon.

Several hundred pieces, some as large as footballs, landed on frozen
Tagish Lake, which straddles the B.C. and Yukon boundary.

Miraculously, about 850 grams of the Tagish Lake meteorite remained in a
pristine state.

The fragments were frozen and uncontaminated despite a fiery descent to
Earth.

"This material is extremely rare," said Sonia Lismer, manager of movable
cultural property with Canadian Heritage, which kicked in more than
$437,000 to keep the meteorite in Canada.

Mr. Brook, who is a resort operator and has a scientific background,
missed the light show, but a week later, he spotted the dark chunks of
rock while driving his pickup across the lake.

He knew not to contaminate them by touching them with his bare hands.

"It's pretty amazing when you consider that they came down right there
on the lake and at that time of year, when there was some snow around,"
he said at the time.

"The whole thing was a real stroke of luck."

He put the rock fragments in his freezer.

Researchers determined that the meteorite, which is fragile and more
ice-like than rock-hard, was the first to come from a thick band of
asteroids between Mars and Jupiter.

NASA scientists found previously unseen organic material in the
carbonaceous chondrite fragments. They detected tiny globules of
hydrocarbons, which were formed long before our own solar system and are
the perfect homes for primitive organisms.

Under Canadian law, meteorites belong to the person who finds them. Mr.
Brook began shopping the fragments around.

He found buyers in the United States, but Ottawa turned down his
application for an export permit because it aims to keep cultural
property of outstanding significance and national importance at home.

Last June, the Canadian Cultural Property Export Review Board, an
independent tribunal, gave federally designated Canadian institutions
six months to match the market value of the rocks. If they failed, Mr.
Brook could sell them as he pleased.

The University of Alberta, the Royal Ontario Museum, Natural Resources
Canada and the Canadian Space Agency began fundraising, but applied for
federal grants to make up a $313,000 gap.

The grants were approved late last year and announced yesterday.

"It's going to enable a really wonderful camaraderie of experts sharing
this material for research and it's going to build on the existing
research that has already taken place with NASA and that research is
going to extend globally," Ms. Lismer said.

The University of Alberta has 650 grams of the fragments and the ROM has
200 grams. The ROM will display a 52-gram fragment.

Christopher Herd, a professor with the department of Earth and
atmospheric sciences at the University of Alberta, said the frozen
fragments will allow researchers to see organic molecules that are
naturally within the meteorite as well as volatile substances - perhaps
extraterrestrial ices.

"It gives us a snapshot of what was happening when the solar system
formed 4? billion years ago and it's unlike any other meteorite even of
its own kind," Dr. Herd said.
Received on Mon 24 Apr 2006 08:24:07 PM PDT