Dear Friends,
There is an interesting peer-reviewed paper in the October issue
of the "Journal of Arid Environments", which provides a detailed
analysis of 62 non-paired meteorites found in the Atacama Desert
of Chile. The paper is:
Munoza, C., N. Guerraa, J. Martinez-Friasb, Author, R. Lunarc
and J. Cerdaa, 2007, The Atacama Desert: A preferential arid region
for the recovery of meteorites—Find location features and strewnfield
distribution patterns. Journal of Arid Environments. vol. 71, no. 2,
pp. 188-200.
Among other analyses, they mapped the principle strewnfield
distribution patterns and summarized the general nature of their
character. They found that these finds typically:
(1) showed more than a quarter of their body exposed;
(2) underwent some sign of terrestrial weathering;
(3) stone meteorites have a brownish desert-varnish on hand specimen;
(4) are non-oriented pieces;
and (5) are commonly members of a greater mass distributed in a
certain place.
The Atacama Central Depression was where the most meteorites
were found and the distribution of saline deposits influenced the
weathering and preservation of meteorites.
Best Regards,
Paul H.
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