[meteorite-list] cumulate vs. noncumulate eucrites

bernd.pauli at paulinet.de bernd.pauli at paulinet.de
Fri Dec 1 14:52:32 EST 2006


Mike wrote: We should also understand "cumulate".

Noncumulate eucrites: have crystallized from basaltic melts on the
s u r f a c e  of the HED parent body. Millbillillie is such a non-
cumulate eucrite.

Cumulate eucrites (O.R. Norton, Encyclopedia, Glossary, p. 342): An
igneous rock made up of relatively large crystals that settled out of
a magma by gravity and accumulated on the *floor of a magma chamber*.

Best wishes,

Bernd




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