2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10920The enrichment of the intracluster medium (ICM) of galaxy clusters, within the framework of the supernovae-driven wind model for elliptical galaxies, has been considered under two extreme assumptions regarding the binding energy-mass-radius relations. Unless the binding energy at the time of wind commencement, for a given galactic mass, was a factor of approximately five lower than that predicted by the present-day relation, at most 20% of the ICM gas could have originated within the cluster ellipticals themselves, the remainder being of primordial origin.2 pages, TeX, also available at http://msowww.anu.edu.au/~gibson/publications.html, to appear in the Proceedings of the Second Stromlo SymposiumAstrophysicstext