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A: kaolinite/chlorite ratio in sediment core M51/3_SL143 from the central Aegean Sea [9]; B: kaolinite/chlorite ratio in sediment core M40/4_SL71 [29]; C-E: Saharan dust end members in core M40/4_SL71; C: clay mineral EM1; D: XRF EM1; E: grain size EM1. Grey shaded areas indicate the sapropels, the red lines indicate the ash layers, and the grey lines mark the Northern Hemisphere cooling events. YD: Younger Dryas; H1-6, H11: Heinrich events.
