There are ordinary chondrites more reduced than the H group. Burnwell is one. Others were studied by:
Wasson J. T., Rubin A. E., Kallemeyn G. W. (1993) Reduction during metamorphism of four ordinary chondrites. Geochim. Cosmochim. Acta 57 (8), 1867-1878. If memory serves, some of the meteorites discussed in this paper were Suwahib (Buwah), Willaroy, and Cerro los Calvos. There don't really form an "extension" of H chondrites. They are anomalous, and have seen different processes. jeff ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
