Meteorite Reveals Chemistry of Early Earth

Meteorite Reveals Chemistry of Early Earth

http://www.astrobio.net/pressrelease...of-early-earth

Summary: New research shows that variations in the organic materials
found in carbonaceous chondrites is due to hydrothermal activity that
took place during the early solar system when the meteorites were still
part of larger parent bodies, such as asteroids.

"Carbonaceous chondrites are a type of organic-rich meteorite that
contain samples of the materials that took part in the creation of our
planets nearly 4.6 billion years ago, including materials that were
likely formed before our solar system was created, and may have been
crucial to the formation of life on Earth.

"The complex suite of organic materials found in carbonaceous chondrites
can vary substantially from meteorite to meteorite. New research from
Carnegie's Department of Terrestrial Magnetism and Geophysical
Laboratory, published June 10 in Science, shows that most of these
variations are the result of hydrothermal activity that took place
within a few million years of the formation of the Solar System, when
the meteorites were still part of larger parent bodies, likely asteroids".

See:
http://www.astrobio.net/pressrelease...of-early-earth

Sam Wormley wrote:

See:
http://www.astrobio.net/pressrelease...of-early-earth

The text says:
The samples are considered very pristine,
because they fell on a frozen lake,
were collected without hand contact within a few days of landing,
and have remained frozen ever since.

And then there's a picture of the meteorite in somebody's hand
with a caption that says:
The Tagish Lake meteorite on its discovery.


--
pete

On Sun, 12 Jun 2011 06:05:07 -0400, pete
wrote:

The text says:
The samples are considered very pristine,
because they fell on a frozen lake,
were collected without hand contact within a few days of landing,
and have remained frozen ever since.

And then there's a picture of the meteorite in somebody's hand
with a caption that says:
The Tagish Lake meteorite on its discovery.

Tagish Lake consists of hundreds of separate pieces. The initial
collections were made very carefully, but I'm sure that not every
piece was bagged.

On Jun 12, 11:18*am, Chris L Peterson wrote:
On Sun, 12 Jun 2011 06:05:07 -0400, pete
wrote:

The text says:
* *The samples are considered very pristine,
* *because they fell on a frozen lake,
* *were collected without hand contact within a few days of landing,
* *and have remained frozen ever since.

And then there's a picture of the meteorite in somebody's hand
with a caption that says:
* *The Tagish Lake meteorite on its discovery.

Tagish Lake consists of hundreds of separate pieces. The initial
collections were made very carefully, but I'm sure that not every
piece was bagged.

My Florida meteorite came off the surface of Mars.Proven by NASA.
Trebert