What can be the reason for this messages to appear with a delay of 32h? AA
porphyritic? Are you sure? The meteorites cool down in a single stage, I
believe
Hi Armando and List,
No idea why there is such a delay! Furthermore, I do not know for sure about the
porphyritic thing. This was not
Armando , Bernd, all,
Porphyritic is a textural term. In terrestrial
igneous rocks it results from multiple-stage cooling,
but I see no reason why you can't run it backwards
with incomplete melting. If olivine is the common
phenocryst phase, this would make sense in that it has
an extremely
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