John Divelbiss
1/14/2018 3:02:56 PM |
Crust development is obviously a dynamic timed based process that can be "frozen" in a variety of states. Chelyabinsk, Zag, and Bilanga are three fall examples with varying crusts with some pieces having multiple types of crust. Capturing such a change like this thin section shows is awesome. The type of meteorite that is most curious to me are the Pallasites and how they crust. The next fall of one will tell me/us more about them. We are do, hopefully. |
Larry Atkins
1/14/2018 7:50:07 AM |
Very nice find,thanks! |
Graham
1/14/2018 3:56:23 AM |
Would be interesting to determine if this is through hot flight or if it is terrestrial weathering.
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Bernd Pauli
1/14/2018 2:48:24 AM |
"At what period of the history of this meteorite could such a structure be formed?" Maybe this article in MAPS provides an answer to this question:
GENGE M.J. and GRADY M. (1999) The fusion crusts of stony meteorites: implications for the atmospheric reprocessing of extraterrestrial materials (MAPS 34-3, 1999, pp. 341-356). |
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