Chlorin concentration of sediment core LV76-21

The sediment for chlorin determination was sampled in slices of 1 cm thick with a resolution of 1 cm. Chlorin content is the product of chlorophyll-a transformation in sediments and was measured using a Shimadzu UV-1650PC spectrophotometer according to the method used by (Harris et al., 1996) with modifications by (Zakharkov et al., 2007).