Hi Matt,
As I understand, the large size and number of clasts, and the high
percentage of one type of ordinary chondrite material versus an other type,
made the difference here. But,... I think other List members will be far
more qualified to answer this one than me.
Best regards,
Rob
----- Original Message -----
From: <[email protected]>
To: "Rob Lenssen" <[email protected]>;
<[email protected]>;
<[email protected]>
Sent: Wednesday, April 29, 2009 11:25 PM
Subject: Re: [meteorite-list] Rob L's NWA 5764 LL6-L4,the first ever LL-L
chondrite
Hi Rob
Nice piece, but I would like a bit of clarification. I believe there have
been other chondrites like yours with a mix of different lithologies, but
simply classified as L6 or LL6 polymict breccias. What sets yours apart? I
am just trying to understand the differences here...
Thanks
Matt
------Original Message------
From: Rob Lenssen
Sender: [email protected]
To: [email protected]
Subject: Re: [meteorite-list] Rob L's NWA 5764 LL6-L4,the first ever LL-L
chondrite
Sent: Apr 29, 2009 3:15 PM
Hello Bernd and List,
Thanks alot for all your congratulations!
Actually (luckily) it was not that hard a decision to cut Mike. Originally
it was fractured at that side :-).
The stone consist of cm-sized dark L4 clasts (Fa 25.58+0.53, Fs 22.2+0.31)
in LL6 (Fa 31.53±0.64, Fs 26.54+0.44) material.
Cheers,
Rob
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Wednesday, April 29, 2009 10:25 PM
Subject: [meteorite-list] Rob L's NWA 5764 LL6-L4,the first ever LL-L
chondrite
Hi Rob and List,
First of all, sincere congrats on such an "exotic" classification. I am
eagerly waiting
for Jeff Grossman's comments! Well, slashes (e.g. L4/5) indicate
transitional classes
whereas hyphens (e.g. L5-6) indicate breccias. In other words, an LL6-L4
chondrite
seems to have an LL6 lithology and, well,...now it's really getting
difficult especially
because the Met.Bull. entry doesn't give any details,...is the L4
lithology incorporated (embedded) into an LL6 matrix (?), is there a
clear-cut boundary between an LL6
lithology and an L4 lithology (something like this: left part of the stone
LL6, right part
L4) or are there L4 islands floating in an LL6 "sea" or, maybe vica versa?
Curious minds just wanna know ;-)
Best wishes,
Bernd
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Matt Morgan
Mile High Meteorites
http://www.mhmeteorites.com
P.O. Box 151293
Lakewood, CO 80215 USA
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