Interesting. Tendency has been to "extend" vocabulary w/ the primitive concretions called "chondrites" as if they were "igneous" (=>differentiated), and change the "unrelated" inclusions to include related ones. The greatest scientific diversity is always had when you ask a group of scientists to define what everyone already takes for granted:) ""Strange stone". At this rate I'm just gonna call all my meteorites xenoliths. I wonder what was wrong with the word clast, and others. Maybe the marketing team has found that collectors pay more for noble references (to Xenon), or getting from point A to B (Xeno)? Good question. Saludos, Doug Bernd P. wrote:
Allende, CV3, and other carbonaceous chondrites contain xenoliths. Bernd also cited: NORTON O. R. (2002) The Cambridge Encyclopedia of Meteorites, Glossary, pp. 343, 344, 345, 347: xenolith: an inclusion of a foreign rock in an igneous host rock that is not chemically related to the host rock. McSWEEN H.Y. (1999) Meteorites and Their Parent Planets (Cambridge University Press, Glossary, p. 288): xenolith: an inclusion of a foreign rock trapped within an igneous rock. HUTCHISON R. (2004) Meteorites: A Petrologic, Chemical, and Isotopic Synthesis (Cambridge Planetary Science Series, pp. 506, Glossary, p. 444): xenolith: a foreign rock; a lithic fragment genetically distinct from its host rock or melt; has been extended to include fragments of related rock, termed cognate xenoliths. ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
