[meteorite-list] Chladni's Heirs NORWAY field report + clumps of only a few stones

From: Jason Utas <meteoritekid_at_meteoritecentral.com>
Date: Tue Jul 25 23:31:04 2006
Message-ID: <93aaac890607251549j7914a57cw132b1c75cbda6889_at_mail.gmail.com>

Hello Bernd, Tracy, All,
Anyone can make a statement look good if they exclude all contrary
evidence.
Aside from Allende(2+t), Tagish Lake (10kg), and NWA 801(unknown kg)?

Murchison 100+kg
DaG CO3's with a main mass of 95kg alone
Kainsaz 200+kg
Karoonda ~50kg
Even Bencubbin and Gujba were at least a hundred kilos each.

Anyone know of others? I admit didn't put too much time into the research
for this...just quick tkw referencing.

Tracy's original statement of "...don't they seem to mostly fall in clumps
of only a few stones?" applies to all meteorite types, not just carbonaceous
chondrites. Have a look at the catalogue of meteorites; the first page
alone is enough for me, but if you continue reading, you'll see what I
mean.

If there's any discrepancy in these ratios at all, my best guess is that it
would be due to their greater tendency to fragment while in the atmosphere
due to their increased relative friability to other meteorites. Either that
or the fact that many tend to turn into mud within a few days or weeks of
falling.

 Yeah, there aren't too many large falls, but then again, how many
large falls are there in general? Not many.....

Regards,
Jason


On 25 Jul 2006 18:27:56 UT, bernd.pauli_at_paulinet.de <bernd.pauli@paulinet.de
> wrote:
>
> Tracy wrote:
>
>
> "...don't they seem to mostly fall in clumps of only a few stones?"
>
> Al Rais (CR2): A total weight of 160g fell near the city of Medina
> Alais (CI): 2 stones, of about 4 and 2 kg respectively, fell
> Banten (CM2): Four individuals, totalling 629g, were recovered
> Bells (CM2): 6 fragments picked up
> Boriskino (CM2): 2 stones recovered, 1165.6g together, 3 others destroyed
> Crescent (CM2): Two stones were found, 72.7 g + 5.7 g
> Erakot (CM2): One stone of 113g was recovered
> Felix(CO3.3): a stone of about 7 lb was found
> Haripura (CM2): a stone fell and broke into 2 pieces
> Ivuna (CI): Two or three stones fell at Ivuna
> Kaba (CV3): a stone of about 3 kg was found
> Kaidun (CR): a single mass of 841.6g recovered from small impact pit
> Kobe (CK4): one stone was recovered ... the total mass is 136 g
> Mighei (CM2): a stone of over 8 kg was seen to fall
> Mokoia (CV3): several stones seen to fall, 2 of about 5lb each recovered
> Nawapali (CM2): 3 stones appear to have fallen but only 3 small fragments
> of about 30g, 20g and 10g preserved
> Ningqiang (CK3): a single stone, in 4 fragments of total weight 4.6 kg
> Nogoya (CM2): a stone of about 4 kg fell
> Orgueil (CI): about 20 stones
> Ornans (CO3.4 ): a stone of about 6 kg fell and broke into two pieces
> Pollen (CM2): a stone of 253.6g fell on the Pollen farm
> Revelstoke (CI): search yielded 2 small fragments, together about 1 g
> Sayama (CM2): a 430 gr stone was found
> Tonk (CI): shower of small stones; a total weight of 7.7 g collected
> Vigarano (CV3.3): 11.5 kg and 4.5 kg
>
>
> Cheers,
>
> Bernd
>
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Received on Tue 25 Jul 2006 06:49:13 PM PDT