[meteorite-list] Finding fossil Meteorites

From: Chris Peterson <clp_at_meteoritecentral.com>
Date: Mon, 25 Oct 2010 17:57:51 -0600
Message-ID: <2A7C1FF08A0B49F88D2C17184F3FD225_at_bellatrix>

All the finds have been Ordovician, because the evidence is that they came
from a single event, which resulted in an approximately 100-fold increase in
the meteorite fall rate, lasting for 1-2 million years. In any other
sedimentary material, you'd expect only 1% as many fossil meteorites- and
the number even in the Ordovician material is very small.

I'm sure there are other types of meteorites trapped in sedimentary layers,
but the likelihood of actually finding one must be extremely small.

Just consider how much ground you have to cover to find a meteorite, and
then imagine that you are covering a sedimentary bed.

Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


----- Original Message -----
From: "Thunder Stone" <stanleygregr at hotmail.com>
To: <countdeiro at earthlink.net>; <mmartin at meteoritetreasures.com>;
<whitefalcons007 at yahoo.com>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Monday, October 25, 2010 4:46 PM
Subject: Re: [meteorite-list] Finding fossil Meteorites



All:

Why does it have to be Ordovician Limestone? Could it be Cretaceous? There
is a lot of Cretaceous Limestone in Texas. I used to live in Austin and it's
everywhere. I used to find all kinds of fossil shells during my trips; I
even found a Crocodile's tooth on a research study site where hundreds of
dinosaur tracks were discovered; I had to turn it over to the University. I
also found a single dinosaur track on a limestone ledge near a road - but no
way to get it out.

I guess there could be fossil meteorites there.

Greg S.
Received on Mon 25 Oct 2010 07:57:51 PM PDT