List, The Altithermal is much more pronounced and lasted about 4,000 years compared with the 1,000+ years of the Y-D. The Altithermal may also give clues to an impact event? It seems logical that more energy should be spent on this much larger widespread climatic event that is well documented in the archaeological record.
Dirk ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
