[meteorite-list] living near a strewfield

From: Mr EMan <mstreman53_at_meteoritecentral.com>
Date: Tue Oct 24 00:09:00 2006
Message-ID: <20061024040852.68330.qmail_at_web51009.mail.yahoo.com>

Me thinks we are stretching the definition and/or
conventional use of the term "strewn field". A single
stone-2-3 stones do not a strewn field make unless
there is compelling evidence that there was a wide
spread peppering of stones.

 We are talking meteorite showers here. Park Forest,
Allende, Odessa, Canyon Diablo, Holbrook, Johnstown,
Bilingua, Gold Basin, Tagish Lake, etc.. Have Strewn
fields based on direct recovery.(forgive any
mispellings cheap spell check)

Peekskill, theoretically has a strewn field with 3 or
more Peaks owing to sequential fragmentation--even
though only one stone was recovered: over 75 fragments
were seen to fall away from the swarm...

New Orleans, Syllicaga, Westfield, etc...nada

The whole issue of strewn field was based on a
mathematical distribution ellipse that early
researchers used to forecast an area to concentrate
searching. To draw this elipse one needs technically 4
or more stones plotted less than. The ellipse is
refined as more stones are recovered and plotted. a
well defined ellipse(30+) typically means 90 95-98% of
the time at least 95% of the distribution will fall
within the ellipse.

Elton
Received on Tue 24 Oct 2006 12:08:52 AM PDT