[meteorite-list] CHARACTERISTICS OF FINE BACTERIA-LIKE TEXTURE FORMED BY IRON METEORITE

From: Shawn Alan <photophlow_at_meteoritecentral.com>
Date: Thu, 13 May 2010 15:14:36 -0700 (PDT)
Message-ID: <430502.31753.qm_at_web113602.mail.gq1.yahoo.com>

Hello Lister'

For you die hard science fans, I think this would be a good read with the current events with ALH84001


CHARACTERISTICS OF FINE BACTERIA-LIKE TEXTURE FORMED BY IRON METEORITE
BY ATMOSPHERE REACTION.

Yas. Miura, Yamaguchi University, 1677-1 Yoshida, Yamaguchi University, 753-8512, Japan (dfb30 at yamaguchi-u.ac.jp)

Introduction:
Spherule texture can be formed in
dynamic reaction during any meteoritic impact in air.
However, there are no reports on nano-bacteria-like
(i.e. spherule-chained) textures with iron (and Nickel)
oxides (with chlorine) in composition and microtexture
with 100nm order [1, 2, 3] in iron meteorite.
The purpose of the present study is to show spherulechained
texture with micro-texture of 100nm in order
found in the Kuga iron meteorite, Iwakuni, Yamaguchi,
Japan.
  
Fine bacteria-like textures in the Kuga meteorite:
The Kuga iron meteorite found in Kuga, Iwakuni,
Yamaguchi, Japan reveals spherule-chained
texture with Fe, Ni-rich composition with 10?m in
size, where each spherule contained ?long microtexture
in 100nm in size? (Fig.1) [1, 2, 3]. The complex
texture of flow and chained shapes can be found
in the fusion crust of the iron meteorite formed by
quenched and random processes with vapor-melting
process in air of the Earth. The FE-ASEM with EDX
analyses by an in-situ observation indicate that the
matrix of the spherule-chained texture with Fe, Ni, Orich
(with minor Cl) composition is carbon-rich composition
formed by impact reactions in air.
  
Click on the link for the rest of the article
http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2489.pdf
  
Shawn Alan
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Received on Thu 13 May 2010 06:14:36 PM PDT