At 14:42 18.01.03 -0800, you wrote: >> Added to that, exactly 1 year later +~1 day, The Tagish Lake >> meteorite exploded over northern Canada. > >Note, too, that none of the Tagish Lake meteorite fragments punctured any >holes through the ice when it landed on the frozen lake.
Yes, the Tagish Lake CI1 is a quite fragile carbonaceous chondrite. Specific weight ~1.5 g/cm^3. I am not shure it could punch a hole through ice, even though ice is 0.9 g/cm^3. Although a CI1 coming down probably is frozen inside, weren't that the reason theTagish Lake find was so important, it had not been contaminated by earthly substances..? And Tagish Lake in NW Canada probably also had thicker ice? But, on the other hand, considering the Pribram/Glanerbrug/Neuschwanstein relationship, they are seemingly, by an orbital similarity criterion, believed to have identical orbits in space. And yet Pribram is H5, Glanerbrug LL6, Neuschwanstein E6 (enstatite). So it sems now quite possible that an object trailing 1 year behind in the orbit could have a fairly different composition. I'm not concluding a meteorite fell into Tadd Lake, I'm just pointing to these dates and other meteor observation at this time in January. Also I think that a melting hole from melting water or moving water is the more unlikely explanation (the lake is just some hundred(s) meter in size). Maybe lightning, sudden influx of warm water from the built-up area?, - and a meteorite is not ruled out it seems. Jarmo, the hole was 2-4 feet wide... Regards, Bj�rn S�rheim ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
