Diatom assemblages and Holocene sea level changes at the Tamatsu site in Kobe, western Japan.

Abstract

The environmental changes caused by the Holocene sea level changes were clearly reflected in diatom assemblages. The replacement of freshwater diatoms by marine ones in the zone Tr-1 was so remarkable that we could easily trace the beginning of the transgression. The upper limit of marine deposits based on the diatom assemblages is indicated by Terpsinoe americana, the dominant species of subzone Tr-2a, and agrees with information from the field observations of sedimentary facies. -from Authors