01501nas a2200229 4500000000100000000000100001008004100002653001300043653002500056653001800081653001400099653002400113653001200137100001300149700001400162245012800176856007100304300001200375490000800387520086200395020001401257 2000 d10aHolocene10aIonian Abyssal Plain10amegaturbidite10aSantorini10aSirte Abyssal Plain10atsunami1 aW. Hieke1 aF. Werner00aThe Augias megaturbidite in the central Ionian Sea (central Mediterranean) and its relation to the Holocene Santorini event uhttp://www.sciencedirect.com/science/article/pii/S0037073800000725 a205-2180 v1353 aA thick mud turbidite, up to 24 m in thickness (termed the \textquotedblleftAugias turbidite\textquotedblright) is decribed from the Ionian and Sirte Abyssal Plains and the adjacent slopes of the Calabrian Rise and the Mediterranean Ridge. The material of the megaturbidite is derived from the Gulf of Sirte (revealed by its high aragonite content) and, through erosion, from the Sirte Rise. The shallow water sediments making up the turbidite were probably mobilized by a tsunami caused by the Minoan Santorini collapse around 3500 yr B.P. The volume of the mobilized sediments is calculated as a minimum of 65 km3. Isolated turbidites of the same age deposited on the upper slope of the Mediterranean Ridge may consist of tsunami-mobilized shallow water material as well as of earthquake-triggered sediment from the flanks of local depressions. a0037-0738