[meteorite-list] Example of Lipping and direction stumper. TAKE2

[Jeff Kuyken]

Thanks for that link Martin. I haven't seen that article for a while but 
it's always an interesting read. I have a few unusual Taza pieces but the 
one that really blew me away with it's "dual orientation" was this little 
gem:

http://www.meteorites.com.au/features/taza2.html

I think it shows quite a few similarities with some of the pieces you have 
highlighted. I've always found this particular feature really interesting in 
meteorites.

Cheers,

Jeff


----- Original Message ----- 
From: "Dark Matter" <freequarks at gmail.com>
To: <mccartney at blackbearddata.com>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Tuesday, July 28, 2009 9:02 AM
Subject: Re: [meteorite-list] Example of Lipping and direction stumper. 
TAKE2



> Hi MT,

>

> Back in July of 2003, I posted a collection of pics of oriented irons

> known then as Taza in my Accretion Desk article:

>

> http://www.meteorite-times.com/Back_Links/2003/July/Accretion_Desk.htm

>

>

> I highlighted a couple of fully lipped individuals also wondering how

> such a feature could form. I believe it was Jim Tobin who suggested

> that the iron was spinning like a wheel parallel to the direction of

> travel and the lipping produced a "tire effect" around the surface

> interior which, as is especially viewable in the specimen I nicknamed

> "a bowl full of flowlines" seemed to have no directional orientation

> in the usual way, and in fact, has much in common with the Allende pic

> you posted.

>

> Best,

>

> Martin

>

>

>

>

> On Sun, Jul 26, 2009 at 4:00 PM, McCartney

> Taylor<mccartney at blackbearddata.com> wrote:

>> http://outofabluesky.com/images/stories/stoneymeteorites/allende12-7.jpg

>>

>> This is an Allende. I'm not sure I understand the orientation signs I 

>> see.

>>

>> I see a star flow line pattern which indicates this side is windward. But 

>> the lipping on the NW side hints the side is leeward. So I'm a bit 

>> confused.

>>

>> Any ideas on alternate interpretations?

>>

>> -mt

>>

>>

>>

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