[meteorite-list] Bernd's chondrite table revisited

From: Matson, Robert <ROBERT.D.MATSON_at_meteoritecentral.com>
Date: Thu Apr 22 09:47:11 2004
Message-ID: <AF564D2B9D91D411B9FE00508BF1C8698E5790_at_US-Torrance.mail.saic.com>

Hi Bernd,

I think you misunderstood my uncertainty about my interpretation
of the distinction between "LL3" and "LL3 (+subtypes)" in your
table. I should have been more specific. Here's the LL
section of your table (best viewed with a fixed-width font
rather than proportional type font):

                   Worldwide US ANT JAPANT Total
    Class Fall Find Total1 Total2 Total3 (1-3)
-------------- ---- ---- ------ ------ ------ -----
LL3 0004 0012 0016 0003 0014 0033
LL3(+subtypes) 0008 0016 0024 0029 *0006* 0059
LL4(+subtypes) 0007 0037 0044 0022 0026 0092
LL5(+subtypes) 0014 0062 0076 0893 0020 0989
LL6 0038 0127 0165 0238 0069 0472
LL7 0000 0005 0005 0004 0002 0011

Notice the value under the JAPANT Total3 column for
LL3(+subtypes). It's the only case where the value
is LOWER than for the plain LL3 case. That's why I'm
confused by the distinction between these two rows.
I assumed the "LL3(+subtypes)" row included all the
meteorites listed in the "LL3" row, *plus* anything
with a distinct petrologic subclassification (e.g.
LL3.2, LL3.5, etc.) Yet, the Japan Antarctic Total3
is less for LL3(+subtypes) [0006] than for LL3 alone
[0014]. I thought it might be a typo, but the final
column sum of the Total1, Total2 and Total3 columns
agrees with it, i.e. 0024 + 0029 + 0006 = 0059.

Best,
Rob
Received on Thu 15 Nov 2001 03:01:46 PM PST