[meteorite-list] Petrologic types

From: Lars Pedersen <lars.b_at_meteoritecentral.com>
Date: Thu Apr 22 10:23:48 2004
Message-ID: <002c01c2e97c$6508fea0$7a21a150_at_star>

Hei Bjørn and list

Yes so far I understand it.
But what is the "tecknical" background for 3.2 - 3.8 ?
I would like to dig a litle bit deeper.

Thanks
Lars
----- Original Message -----
From: "Bjørn Sørheim" <bsoerhei_at_online.no>
To: <meteorite-list_at_meteoritecentral.com>
Sent: Wednesday, March 12, 2003 1:42 PM
Subject: Re: [meteorite-list] Petrologic types


> Hei Lars,
> Even finer grading, lowest value of 3.x means the chondrules
> are the most distinct, higher values that they become
> more 'blured'. But even 3.8 are quite distinct since
> it's 3, not 4,5,6 in the first place.
>
> I think it's only the petrologic type 3 that have this subdivision,
> it's not so much needed, or it's no so easy to make
> a coherent subdivision in the less distinct 1-2 & 4-5-6.
> That's as far as I understand it, at least ...
>
> Bjørn Sørheim
>
> At 08:43 12.03.03 +0100, you wrote:
> >Ho ..... sorry typing error ...... Hi
> >I have been thinking - not that I do that very often - What does the
> petrologic type 3.8 mean ?
> >I understand the types 3-4-5-6 but when it comes to the decimals I fall
off.
> >Can anyone enlighten me ? (or how it is spelled)
> >I just bought a NWA 987 L3.8 so I want to know more about it.
> >
> >Regards
> >Lars
>
>
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Received on Thu 13 Mar 2003 11:19:59 AM PST