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

From: Richard Kowalski <damoclid_at_meteoritecentral.com>
Date: Tue, 8 Jun 2010 20:23:22 -0700 (PDT)
Message-ID: <831401.63342.qm_at_web113606.mail.gq1.yahoo.com>

In my opinion, this is by far one of the most, if not the most important meteorite in the field of meteoritics! Imagine, a meteorite that could very well be a remnant of the object that impacted the proto-Earth and causing the formation of the moon, or possibly a remnant of that very impact. Either way there no doubt that this material is highly some amazing stuff!

I can't see any meteorite research facility or collector for that matter, that wouldn't want some of this meteorite in their collection, even if it is just a single milligram!!!

Congrats Greg!

Awesome!

--
Richard Kowalski
Full Moon Photography
IMCA #1081
--- On Tue, 6/8/10, Greg Hupe <gmhupe at htn.net> wrote:
> From: Greg Hupe <gmhupe at htn.net>
> Subject: [meteorite-list] NWA 5400: Earth-Related Meteorite
> To: meteorite-list at meteoritecentral.com
> Date: Tuesday, June 8, 2010, 4:31 PM
> 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 11:23:22 PM PDT