[meteorite-list] NWA 5400: Earth-Related Meteorite

From: countdeiro at earthlink.net <countdeiro_at_meteoritecentral.com>
Date: Tue, 8 Jun 2010 22:36:28 -0400 (EDT)
Message-ID: <7703298.1276050988220.JavaMail.root_at_wamui-junio.atl.sa.earthlink.net>

Congratulations, Greg

It's a great find and a compelling argument for "The Prodigal Son" of meteorites.

Count Deiro
IMCA 3536

-----Original Message-----
>From: Greg Hupe <gmhupe at htn.net>
>Sent: Jun 8, 2010 7:31 PM
>To: meteorite-list at meteoritecentral.com
>Subject: [meteorite-list] NWA 5400: Earth-Related Meteorite
>
>Dear List Members,
>
>I would like to announce an important new meteorite that has been under
>intense analysis over the last two years by a select group of scientists
>from around the world...
>
>NWA 5400: Earth-Related Ungrouped Meteorite
>
>
>Northwest Africa 5400 may be a sample from a large asteroid or dwarf planet,
>which accreted in the early solar nebula in the vicinity of proto-Earth or
>Theia. NWA 5400 has oxygen isotope ratios indistinguishable from those of
>rocks from the Earth and the Moon, which plot on the TFL (Terrestrial
>Fractionation Line). A precise formation age has not yet been measured, but
>it cannot be older than 4.54 billion years, which likely makes NWA 5400
>anomalously young among primitive achondritic objects from the early Solar
>System. It is generally accepted that the Earth-Moon system was created when
>Theia collided with proto-Earth about 4.3 billion years ago. Is it possible
>that NWA 5400 is somehow related to this phenomenal event?
>
>
>
>NWA 5400 adds valuable understanding of events that took place in the early
>evolution period of the Solar System. After two years of intense analysis,
>scientists at prominent institutions from around the world continue to
>diligently study this 'stand-alone' meteorite, which will add to the already
>incredible information NWA 5400 has to offer.
>
>
>
>Link to 2009 LPSC abstract on NWA 5400:
>
>http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2332.pdf
>
>
>
>Link to 2010 LPSC abstract on NWA 5400:
>
>http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1492.pdf
>
>
>
>NWA 5400 has a Total Known Weight of 4.818 kg in a single stone that was
>discovered in Northwest Africa in 2008. The chocolate-brown mottled matrix
>takes an extremely nice polish, which reveals the dazzling olivine crystals
>exhibited in this scientifically important new meteorite!
>
>
>
>Cross-polarized light optical thin section image of NWA 5400 (width of field
>= 1.2mm):
>
>http://www.lunarrock.com/NWA5400/nwa5400xpl.jpg
>
>
>
>Image of 58.9-gram complete slice with hologram-like olivine crystals that
>dance across the polished surface when tilted from side to side:
>
>http://www.lunarrock.com/NWA5400/nwa5400slice.jpg
>
>
>Best regards,
>Greg
>
>====================
>Greg Hupe
>The Hupe Collection
>NaturesVault (eBay)
>gmhupe at htn.net
>www.LunarRock.com
>IMCA 3163
>====================
>Click here for my current eBay auctions:
>http://search.ebay.com/_W0QQsassZnaturesvault
>
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Received on Tue 08 Jun 2010 10:36:28 PM PDT