Fig. 4From: Marine tephra in the Japan Sea sediments as a tool for paleoceanography and paleoclimatologyDark-layer stratigraphy and tephra occurrences in the Japan Sea during the last 90Â ka. Dark-layer stratigraphy from Tada et al. (1999). Tephrostratigraphy was compiled from Ikehara et al. (1994), Nakajima et al. (1996), Domitsu et al. (2002), Ikehara (2003), and Lim et al. (2013)Back to article page