[meteorite-list] Franconia AREA (was, Re: ...terminology...)

From: Larry Atkins <thetoprok_at_meteoritecentral.com>
Date: Tue, 30 Apr 2013 08:47:26 -0400 (EDT)
Message-ID: <8D013B8003A5BEC-1924-9F70_at_webmail-m214.sysops.aol.com>

Michael, Bob, Anne, Jim, Erik, List,

Though it appears that the trend line is the same for all the different
meteorites, with the smallest stones at the n.w. and getting larger to
the s.e., there's at least one reason why this may not be entirely true
for all the different falls. It's possible the sampling is not
geographically big enough, width wise. Due to the n.w. to s.e. lay of
the biggest fall, that's where the focus was. Everyone seems to search
where others are finding rocks and it's hard to stray too far off that
tack, if one gets too far off to the side and doesn't find something
they tend to meander back to more 'likely' ground, keeping the hunt
area narrow and moving in the general direction of the field. One of
the other, smaller falls like the L chondrites may in fact bisect the
Buck Mountain or Franconia strerwn field, cutting crosswise, east to
west, but if nobody goes far enough out to the sides it could be
overlooked. My real life, possible example of this scenario; Scott and
Terri Johnson pull up onto the scene for the first time, don't know
exactly where to hunt, Bob tells them where to park, and BAM, they find
a seven pounder! It was 1/2 mile off to the side from the next closest
find and from the outer edge of the main trend area, and I know of no
other meteorites found in the immediate vicinity. This stone is likely
paired to one of the known's but which one? Does it hint at another
trend line?

I think I'll spend some more time out on the sides, looking to the west
toward the other DCA.


Sincerely,
Larry Atkins
?
IMCA # 1941
Ebay?alienrockfarm
?


-----Original Message-----
From: Michael Mulgrew <mikestang at gmail.com>
To: Meteorite List <meteorite-list at meteoritecentral.com>
Sent: Tue, Apr 30, 2013 12:56 am
Subject: Re: [meteorite-list] Franconia AREA (was, Re:
...terminology...)


And even if there was, I think the chances of a glacier arranging who
knows how many separate meteorite falls into a typical strewn field
ellipse distribution may be even less than the chances of so many
falls concentrated in one area along the same trend line. After I win
the lottery I'll fund the effort to figure it out, because I think my
chances at the lotto are better than multiple falls happening in the
exact same strewn field ellipse over the millennia.

Michael in so. Cal.



On Mon, Apr 29, 2013 at 6:29 PM, Michael Farmer <mike at meteoriteguy.com>
wrote:
>
> I don't think there was ever any glacier activity there:)
>
> Sent from my iPhone
>
> On Apr 30, 2013, at 7:03 AM, Anne Black <impactika at aol.com> wrote:
>
> > Jim wrote:
> >
> > Any Phd's out there want to explain the statistics of so many falls
in
> > such a small area??? What...a .01% chance!
> >
> > OR could they have been pushed there and accumulated by the latest
glaciations(s)??????
> >
> >
> > Anne M. Black
> > www.IMPACTIKA.com
> > IMPACTIKA at aol.com
> >
> >
> > -----Original Message-----
> > From: Jim Wooddell <jimwooddell at gmail.com>
> > To: Erik Fisler <phxerik at yahoo.com>
> > Cc: Meteorite List <meteorite-list at meteoritecentral.com>
> > Sent: Mon, Apr 29, 2013 1:40 pm
> > Subject: Re: [meteorite-list] Franconia AREA (was, Re:
...terminology...)
> >
> >
> > Hi Erik and all!
> >
> > What mapped strewnfield? The decade old one that was used for the
> > study or a current one that extended the Franconia Area strewn field
> > about 4 miles that was not used?
> >
> > Any Phd's out there want to explain the statistics of so many falls
in
> > such a small area??? What...a .01% chance!
> >
> > Jim
> >
> >
> >
> >
> > On Sun, Apr 28, 2013 at 4:11 PM, Erik Fisler <phxerik at yahoo.com>
wrote:
> >> You mean all those H3-5's are paired?!? Lord.
> >>
> >> I think people forget that there are LL's, L's and H's found from
the
> > Gold
> > Basin fall. To say that a mass from a parent body large enough to
have a
strewn
> > field of this size and TKW should be one homogeneous petro.-type is
silly.
> >> This business of trying to classify every stone as a different fall
> > for what
> > ever selfish or perverse reason along with having a personal
attachment to
the
> > outcome of the over all conclusion is ridiculous and completely
against the
> > scientific method.
> >>
> >> How many of those YDCA or what ever H3-5's have been found outside
> > the mapped
> > strewn field? And how far?
> >>
> >> -Erik Fisler
> >>
> >> Sent from my iPhone
> >>
> >> On Apr 26, 2013, at 11:02 PM, Robert Verish
<bolidechaser at yahoo.com>
> > wrote:
> >>
> >>> Hi All,
> >>> Just read another article in the 2013 March edition of M&PS,
> >>> "Stones from Mohave County, Arizona:
> >>> Multiple falls in the 'Franconia strewn field' "
> >>> by Melinda Hutson, et al.
> >>>
> >>> There is much to digest from this 5-author paper that is 25 pages
> > long.
> >>> What with 14 stones being studied and 7 pairings to be described,
> > there is a
> > lot to chew on.
> >>>
> >>> Here's something to chew on. According to this paper, "Much
> > unclassified
> > material that has been distributed [sold] as 'Franconia' may not be
from the
> > Franconia fall". The authors make a case that more than half of
the finds
made
> > in the "Franconia area" are paired to the Buck Mountain Wash fall.
> >>>
> >>> It has taken 10 years, but these findings show that I was
justified
> > in my
> > belly-aching about all of the self-pairing that was occurring back
then.
It
> > was on this very List that I was strongly criticized for this, and
many
dealers
> > that thought they knew better defended their God-given right to
name their
> > stones after the Franconia meteorite that I got classified. A
closer look
at
> > the MetBull images for Franconia shows that very few of them are
from the
> > Franconia fall. I offer no apologies for taking great satisfaction
in the
fact
> > that I am now vindicated.
> >>>
> >>> The paper goes on to show that every Sacramento Wash numbered
> > meteorite is
> > paired to Buck Mountain Wash, which effectively has resulted in the
demise
of
> > the SaW DCA and hastened the formation of the Yucca DCA.
> >>>
> >>> As I said, if you read this paper, there's a lot more to digest.
> >>> It's late and I'm thinking about chewing on an antacid pill.
> >>>
> >>> -- Bob V.
> >>>
> >>> --- On Thu, 4/25/13, Jim Wooddell <jimwooddell at gmail.com> wrote:
> >>>
> >>>> From: Jim Wooddell <jimwooddell at gmail.com>
> >>>> Subject: Re: [meteorite-list] Chelyabinsk - IMB or SMB? The
> > nomenclature of
> > Melts.
> >>>> To: "Meteorite List" <meteorite-list at meteoritecentral.com>
> >>>> Date: Thursday, April 25, 2013, 5:29 PM
> >>>> Hi All!
> >>>> Just a point of information. I just read Dr. Rubin's paper,
> >>>> "Multiple melting in a four-layered barred-olivine chondrule with
> >>>> compositionally heterogeneous glass from LL3.0 Semarkona"
> >>>> Whew! That's a title for a paper!
> >>>> While we are on the subject of melts, I thought I'd point-out
> >>>> this paper.
> >>>> Enjoyed reading it the first time....actually understood some
> >>>> of it and will read it once again after thinking about it
> >>>> for a while.
> >>>> You folks might enjoy reading it when you get a chance!
> >>>> Thanks Alan!!
> >>>>
> >>>> Jim Wooddell
> >>> ++++++++++++++
> >>>
> >>> ______________________________________________
> >>>
> >>> Visit the Archives at http://www.meteorite-list-archives.com
> >>> Meteorite-list mailing list
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> >> ______________________________________________
> >>
> >> Visit the Archives at http://www.meteorite-list-archives.com
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> >
> >
> >
> > --
> > Jim Wooddell
> > jimwooddell at gmail.com
> > 928-247-2675
> > ______________________________________________
> >
> > Visit the Archives at http://www.meteorite-list-archives.com
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> >
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> >
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Received on Tue 30 Apr 2013 08:47:26 AM PDT