[meteorite-list] petrological type

From: Mendy Ouzillou <ouzillou_at_meteoritecentral.com>
Date: Fri, 11 Apr 2014 10:31:02 -0700
Message-ID: <B2EE4285-6A0A-4C46-AA23-4ACDFC4E5DC7_at_yahoo.com>

Two different sequences.

Mendy Ouzillou

On Apr 11, 2014, at 10:14 AM, "Francesco Moser" <cojack at tiscali.it> wrote:


Hello, I have a question about chondrites' petrological type number assigned
after the letters (like H, L, CM or CR ...).
I have just read something in internet but I think I have misunderstood
something.

Are the numbers from 1 to 7 in sequence or there are two different
sequences: 1 to 2 - 3 to 7 ??
1 to 2 is for the aqueous alteration degree in carbonaceous chodrites (1
high degree, 2 low degree)
3 to 7 is for thermal metamorphism degree?


Thanks a lot

Ciao

<x>x<x>x<x>
Francesco


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Received on Fri 11 Apr 2014 01:31:02 PM PDT