1. SEDIMENTARY RECORD OF HISTORICAL TSUNAMIS IN THE BAY OF CADIZ (SPAIN) Javier Lario UNED(Universidad Nacional de Educacion a Distancia, Madrid) Museo Nacional de Ciencias Naturales, CSIC (Madrid) Javier.Lario@ccia.uned.es Marrakech, 07

3. H4 spit barrier tsunami deposits - 1755 Lisbon tsunami Described by Dabrio et al., 1997; Luque at al., 1999, 2000 At least 4 washover fans 19 cores 3 sandy units related with 3 wave flooding

4. H3 spit barrier tsunami deposits 10 washover fans 1900-2300 yrBP

5. TAP-01-1 TAP-01-2 TAP-01-3

6. Grain size

7. TAP-1-02 TAP-1-01

8. Doñana spit barrier high-energy/tsunami deposits

9. GEOLOGICAL RECORD During Late Holocene: Almost two tsunamis in Gulf of Cadiz with destructive effects Geomorphological, sedimentological and palaeontological record, that support the historical and archeological record Essential to calculate recurrence periods

10. Registro geológico (Andrade, 1992; Kortekaas, 2002; Tuttle et al., 2004; Kortekass & Dawson, 2007)

11. ca. 7000 CalBPHigh energy event. storm? ca. 5600-5300 CalBP High energy event. storm? ca. 4200-4000 CalBPHigh energy event. ca. 2700-2400 CalBPHigh energy event: tsunami + storm surge alla round the coast Tsunami: sure in Valdelagrana at ca.2300-2200 CalBP (Luque et al., 2003) correlation possible with others event in the coast ca. 2000 CalBP High energy event. ca. 1500 CalBP High energy event. 1755 ADTsunami (Lisbon earthquake). Not always we founf geological record. Lack in dating sediments associated with this event High energy events in Gulf of Cadiz No enough data to calculate recurrence periods Need to be correlated with other records (tsunamites?)

12. Future

13. Otros Eventos de Alta Energía

14. Rio Piedras estuary Huelva Tinto-Odiel Estuary

18. 19 cores (6 to 23 m)

19. Past/Now/Next LithologyLithology Grain size (high resolution)Grain size (high resolution) Environmental magnetismEnvironmental magnetism Palaeontology (micro and micro)Palaeontology (micro and micro) GeochemistryGeochemistry MineralogyMineralogy Radiocarbon datingRadiocarbon dating Identification of high energy event Differentiate tsunamis from storms