Zelimir Gabelica wrote: > Actually, according to the official nomenclature, LL6 is not > included in the LL3-7 mention.
The Introduction to the last (and previous) MetBull states: > Hyphens in petrologic type assignments for chondrites (e.g., > "H5-6") indicate the range of types observed in breccias So a classification of LL3-7 would mean that the the range of types between LL3 and LL7 wss observerd. But as fas as I under- stand, the range need not to be observed completely, so LL3-7 could also mean that LL3, LL5, LL6 and LL7 have been observed, but not LL4, for example. > One should then rather write "LL3/7", this meaning that all > types from LL3 to LL7 are present. Accoridng to the MetBull, "slashes (e.g., "H5/6") indicate transitional assignments", and I doubt that there would be a transitional type between LL3 and LL7. :-) > not clear though whether this implies that LL6 is the impacted > body or the impactor. I think this implies that LL6 is the dominant lithology. I think the question what was the impactor and what was the target is not easy to answer, and it it would even ask for a definition of "impactor" and "target". If a small meteoride collides with a large planet (like the Earth) this is obvious, but when small meteorides collide (which are possible of similar size) it's not that easy... Best greetings, Herbert Raab ______________________________________________ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
