Abstract
The concentration profiles of 9Be, 10Be and 230Thexc have been measured in two oceanic sediment cores from near Antarctica in the Pacific. The 10Be and 9Be depth profiles in eleven Pacific cores investigated so far by our group have been summarized, and the variations of 10Be flux, 9Be concentration and 10Be/9Be atomic ratio from core to core are discussed in the light of a scavenging process of the beryllium isotopes.
