Radiocarbon marine reservoir ages in the western Pacific estimated by pre-bomb molluscan shells

Apparent 14C ages of the pre-bomb molluscan shells show new estimations of ΔR values for the western Pacific including the East Sakhalin Current, Oyashio Current, Kuroshio Current, Kuroshio Countercurrent, and Pacific North Equatorial Current. Clear differences in ΔR between the subarctic and subtropical gyres water masses around the Japanese archipelago are observed.