[meteorite-list] DIs in Fred's TAN 057
bernd.pauli at paulinet.de
bernd.pauli at paulinet.de
Tue Nov 1 08:19:40 EST 2005
Hello Frederic and List,
"What do you think about those different
kinds of DIs present in Tnz057 (C4-an)?"
http://meteoriteshow.free.fr/images/b117/tan057-slices-MNHN(oct-2005)/tnz057-slice_nr7-59.3g(2-Dark_Inclusions)-web.jpg
I agree, while the bigger one looks like a real DI composed of
grainy matrix material (olivine, pyroxene, magnetite, etc.), I
wonder if the smaller one really is a DI. So what could it be ??? :
- a dark inclusion with a higher density and/or finer-grained components
- a xenolithic clast (a huge euhedral, (weathered?) pyroxene crystal?)
- a totally oxidized metallic bleb (limonite?)
Anyone else who can or would like to shed a little more light on these DIs?
Cheers,
Bernd
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