MPOD 210504 from Tucson Meteorites

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Tarda contributed by Stephan Kambach MetBul Link

Roll Overs: #1 #2 #3 #4 #5

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View all entries for Meteorite (4) Stephan Kambach (33)

3.23 grams. C2-ung

TKW 4 kg. Observed fall 25 August 2020, Morocco.

Stephan writes:
In many ways this meteorite is extraordinary. It has no CAI's (probably place of origin > 10AU). Upon contact with water, the matrix melts away. Oxygen isotopy δ18 O shares similarity of CI and CY meteorite values; However, Δ17 O is below that of CI and CY. There is no overlap with other groups of meteorites. Tagisch Lake is arguably the closest in some ways. Much research will certainly be done on this meteorite, and some literature will follow.

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#1

#2

#3

#4

#5

Found at the arrow (green or red) on the map below

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Tomorrow

Aguas Zarcas

Ziyao Wang

This Month

1 picture in the Queue

Dirk Hohmann 5/5/2021 1:06:26 PM	Thank you, Stephan, for your explanation.
Stephan Kambach 5/5/2021 9:46:22 AM	Oh sorry - the fragment you ment. Shure, it looks like CAI, but a close up picture would show you the slightly green yellow colour and small crystals - AOA - suggestion.
Stephan Kambach 5/5/2021 7:05:17 AM	The whit clasts could be am*boid olivine/ aggregate. In the case of the 7 gram individual, it could also be impurities or meltdowns in the crust during the ablation process just before the inhibition zone, without the AOA being able to be completely converted during melting.
Dirk Hohmann 5/5/2021 3:49:36 AM	Very nice collection of Tarda, Stephan!! No CAI`s inside, but what could be the visible white clasts in picture #4?
John Divelbiss 5/4/2021 1:59:26 PM	impressive Tarda group Stephan. Thanks for the treat !!
Steve Brittenham 5/4/2021 12:39:52 PM	Gotta love that beauty in Photo 1!
Twink Monrad 5/4/2021 9:11:50 AM	Interesting pieces!
matthias 5/4/2021 3:10:45 AM	One never can have too many pieces of this fabulous meteorite.
Andreas Ruh 5/4/2021 1:34:45 AM	Very nice individuals. Thank you for sharing with us, Stephan!

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