[meteorite-list] NPA 11-12-1977 Allende Meteorite Gives Clue To Solar System

From: MARK BOSTICK <thebigcollector_at_meteoritecentral.com>
Date: Fri Dec 17 11:03:09 2004
Message-ID: <BAY4-F11112147896348BE12CBFFB3AF0_at_phx.gbl>

Paper: Indiana Evening Gazette
City: Indiana, Pennsylvania
Date: Saturday, November 12, 1977
Page: 8

Meteorite Gives Clue To Solar System

     PASADENA, Calif. (AP) - A meteorite plucked from the wilds of northern
Mexico may help prove the theory that the solar system was born in the blast
of a dying star.
     Scientists at the California Institute of Technology said Friday they
had found unusual forms of three elements while studying the so-called
Allende meteorite, found in Mexico in 1969.
     Dimitri Papanastassiou, an astronomer geologist said he discovery
supports the theory that a supernova - the explosion of a dying star -
forger primordial fields of glasses and dust into what is now our solar
system.
     "This discovery take that theory off of the cocktail discussion table
and gives us something to work with," he said.
     Discovery of new forms of the elements calcium, barium and neodymium in
the meteorite means the three samples came from some source outside the
early fields of gas and dust that formed the solar system, he said.
     That source, the scientists speculate, was an exploding star that let
out powerful shock waves and caused creation of the planets.
     As further evidence, the Caltech group said the meteorite contained
Aluminum 26, a rare form of aluminum. This acts as a "clock" on the
meteorite. Papanastassiou said, dating the explosion of the supernova to
"within less than 2 million years before the solar system was formed."
     The notion is that you have something (some force) adding material to
the solar system very soon after that material got formed." Papanastassiou
said.

(end)

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Clear Skies,
Mark Bostick
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Received on Fri 17 Dec 2004 11:01:17 AM PST