[meteorite-list] Is Pena Blanca Springs meteorite a hammer stone?????

From: Richard Kowalski <damoclid_at_meteoritecentral.com>
Date: Fri, 15 Apr 2011 12:44:04 -0700 (PDT)
Message-ID: <219491.91697.qm_at_web113610.mail.gq1.yahoo.com>

Shawn,

what I got from the discussion about hammers on this list several months ago, since there is no 'official' term or definition, a hammer can be nearly anything you want it to be.

Basically a hammer is a meteorite that strikes a man-made object. But then again, only certain man-made objects, depending on who you are and how you want ot use the term.

A dirt road? Man-made, but most here reject that as a man-made object for this purpose. Same goes for if it lands in a field of grain or even just a pasture that was cleared from woodland. Obviously all these are man made objects, but also rejected for this purpose... By some at least.

The pond/swimming pool/reservoir, whatever you want to call it is by definition a man made object, so yes PBS can be rightly called a hammer if you wish. Just don't expect anyone, other than me to agree with you.

BTW, I'm not intending to be a grenade thrower here, just spouting my own personal opinion.

Cheers

--
Richard Kowalski
Full Moon Photography
IMCA #1081
--- On Fri, 4/15/11, Frank Cressy <fcressy at prodigy.net> wrote:
> From: Frank Cressy <fcressy at prodigy.net>
> Subject: Re: [meteorite-list] Is Pena Blanca Springs meteorite a hammer stone?????
> To: "Shawn Alan" <photophlow at yahoo.com>, meteorite-list at meteoritecentral.com
> Date: Friday, April 15, 2011, 12:27 PM
> Shawn and all,
> 
> The "swimming pool" quote is?used in the abstract.? Later
> in the article the 
> "swimming pool" is described thusly:
> 
> "Springs issue at a point where a water gap has been eroded
> through the ridge 
> and form a creek which flows southeast.? About 400 feet
> below the springs, the 
> creek is confined by a dam 4 feet high.? At the head of
> the pool the water is 
> about 10 feet in depth and 20 feet wide."? 
> 
> 
> The "swimming pool" is the pool made by damming the creek,
> no doubt for 
> irrigation and/or supplying water for livestock.? A photo
> of the pool is in the 
> May 2000 issue of Meteorite magazine in an article about
> PBS.? The only man-made 
> construction involved is the dam.? So I'd say "no" to it
> being a "hammer."? ( 
> unless there was meteoritic material in the water?that
> splashed on the farm 
> truck that was driving by at the time of the fall).
> 
> Cheers,
> 
> Frank
> 
> 
> 
> ----- Original Message ----
> From: Shawn Alan <photophlow at yahoo.com>
> To: meteorite-list at meteoritecentral.com
> Sent: Fri, April 15, 2011 11:39:12 AM
> Subject: [meteorite-list] Is Pena Blanca Springs meteorite
> a hammer stone?????
> 
> Hello Listers,
> ?
> I have a good question I was doing?some searching around
> on the net today and I 
> came across an article called 
> 
> ?
> THE PENA BLANCA SPRING METEORITE,
> BREWSTER COUNTY, TEXAS
> ?
> BY 
> ?
> John T. Lonsdale University of Texas, Austin Texas
> ?
> With in the article it was stated that the meteorite
> plunged into a swimming 
> pool feed by natural?spring water hence where the
> meteorite got its name. I have 
> also read this meteorite was recovered from a pond, stock
> pond. Now can these 
> natural spring water swimming pools be man made and if so
> was the one on Gages 
> ranch about 9.5 miles southeast of Marathon in Brewster
> County, Texas man made 
> as well? If thats the case wounldnt Pena Blanca Springs
> meteorite be a HAMMER 
> STONE? 
> 
> 
> Good indication that can suggest that this swimming pool/
> pond could be man made 
> is that after the pool was drained about 4 feet below
> normal level to recover 
> some of the meteorite fragments. In order to drain a
> pool/pond there has to be 
> some construction implemented in order to achieve that? 
> 
> 
> Down below is some points taken from the article and also a
> link to the whole 
> article. Please take a look and share your thoughts on what
> you think.
> 
> Abstract
> The Pena Blanca Spring meteorite fell August 2, 1946, in
> the swimming pool at 
> the headquarters of the Gage Ranch near Marathon in
> Brewster County, Texas. 
> Twenty-four people were within a few hundred feet of the
> point of fall, and one 
> person saw the meteorite in flight. Many interesting
> incidents were accurately 
> reported.
> 
> As far as known, man has never constructed a device in
> which to trap
> a meteorite falling to the earth. Had he done so, possibly
> he could not
> have improved upon the swimming pool at the headquarters of
> the Gage
> ranch about 9.5 miles southeast of Marathon in Brewster
> County, Texas.
> This swimming pool received the Pena Blanca Spring
> meteorite with a
> violent splash at about 1:20 p.u. on August 2, 1946. The
> meteorite is
> named from the spring which forms the swimming pool and
> which is
> an historic landmark in the region.
> 
> http://www.minsocam.org/ammin/AM32/AM32_354.pdf
> 
> Lastly, why I brought this up is because in numerous cases
> I have read swimming 
> pool and swimming pool means man made. But again the word
> can be subjective. 
> 
> 
> Shawn Alan 
> IMCA 1633 
> eBaystore 
> http://shop.ebay.com/photophlow/m.html 
> 
> 
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Received on Fri 15 Apr 2011 03:44:04 PM PDT