Figure 1
From: Evidence of the Zanclean megaflood in the eastern Mediterranean Basin
Seismic stratigraphy of western Ionian Basin. Interpreted units on (a) PSDM seismic reflection profile CROP 21 and (b) post-stack time-migrated seismic reflection profile CUMECS-3. A plot of estimated PSDM seismic velocities is included in (a). Location of profiles in Fig. 2a. Correlation with DSDP Site 374 (location in Fig. 2a) is provided for (b). Dashed black lines denote inferred faults. CDP = common depth point; SP = shot point. Unit 1 consists of high amplitude, continuous, parallel to sub-parallel reflectors, which correlate with Pliocene-Quaternary pelagics, contourites and turbidites (Supplementary Table S1). In (b), the shallower section of unit 1 is shaped into sediment waves. Unit 3 correlates with MSC evaporites (Supplementary Table S1) and comprises a discontinuous, highly reflective and mostly deformed upper unit (3a - gypsum and marls), an intermediate, typically reflector-less unit with a basin-fill geometry (3b - halite), and a lower, highly reflective, discontinuous unit (3c - lower gypsum or clastics). The top of unit 3 slopes towards the south-south-east. Unit 2 is described in the text. In (b), unit 2 is imaged at a transition from a chaotic to laminated seismic facies. The un-interpreted seismic reflection profiles are displayed in Supplementary Fig. S1.
