Hello, Martin and the list,
we have also some fossile ???micro-meteorites??? found in Finland in sandstone,
in Koylio, some 1,4 Ga old ??? These was found in 1960, then confimed as
meteorites by Geological Survey of Finland and Munster university in 1998.
Some ???120 micrometeorites??? was found. Anyway, when more material was
collected, no meteorites was found at all. So in fact at the moment nobody
knows, where those 120 ??? micrometeorites??? came from, so it�s possible, these
Koylio ???micrometeorites??? don�t exist at all. They were discretidet later in 1990�s.
Jarmo Moilanen has a more spesific story on his site;
http://www.netppl.fi/~jarmom/geo/met/mkoyli_e.htm
I have tried to find a clear difference between a micrometeorites and meteorites, so
if somebody has it, please, let me know. There are several very, very small ones
listed in cataloque, but the real micrometeorites is a different thing anyway, so the
clear description with a "micrometeorite" would be more than welcome.
take care,
pekka s
Martin Altmann wrote:
Hi,
there were found 55 fossile meteorites in limestone in five different quarries in South Sweden, more than 40 of them in the Thorsberg quarry in Kinnekulle. The quarries a distributed in an area of 300 miles and the layers in that limstone formed in a span of 2 million years 480 million years ago, so that the meteorites don't stem from a single event, but surprisingly they are all of the same type. L-chondrites. They are quite well preserved, I have a picture here and chondrules are easily visible.
See a report here: http://www.rice.edu/projects/reno/Newsrel/2003/20030508_meteorite.shtml
Martin
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