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Re: classification question



Trond Ryberg wrote:
 but what about the L3.4, L3.8 etc. (same for H and LL)

--
I asked the same question recently. David Weir replied to me with an
answer.


From: David Weir 
To: Jim Hurley 
Subject: Re: Petrology 3.x
Date: Fri, 01 May 1998 22:18:45 -0400

Jim,
In the journal Meteoritics Vol. 30, Nov 1995, pg 711, there is a table
showing the breakdown between the thermoluminescence sensitivity value
and the petrologic type 3 broken down into tenths as follows:

3.0   <0.017
3.1   0.017-0.030
3.2   0.030-0.054
3.3   0.054-0.10
3.4   0.10-0.17
3.5   0.17-0.30
3.6   0.30-0.54
3.7   0.54-1.00
3.8   1.0-1.7
3.9   >1.7

Other parameters are used additionally such as Mean Fa, %C, and %water
among others. Hope this helps.
David


References: