Negative correlation of iodine-129/iodine-127 and xenon-129/xenon-132: Product of closed-system evolution or evidence of a mixed component

Anti-correlation of initial iodine ratios with trapped Xe-129/Xe-132 ratios has been interpreted as resulting from I-129 decay to Xe-129 in a closed s ystem. However, many of the Xe-129/Xe-132 ratios that contribute to the ant i-correlations are lower than 1.04, the value characteristic of major solar system reservoirs; I-129 decay cannot I ead to a decrease in this ratio. W e offer an alternative explanation for the anti-correlations, based on trap ped iodine and xenon components similar to those observed in Nakhla, that d oes not require the existence of components with Xe-129/Xe-132 lower than s olar.