Magic Sheet 49 Otranto — Map (OpenData)

Sheet 49 is characterised by widespread erosion due to currents and in particular, in some periods, to the phenomenon of dense waters, which impact on the outer platform and on the escarpment both upper and lower, determine its appearance and morphology. The platform has some areas of emerging substrate and, on the parallel side to it, a series of depressions aligned in the predominantly NO-SE direction, probably due to the impact of dense waters during the cascading phenomenon. In the southern part, erosive depressions have direction N-S and are always parallel to the eyelash. In an area of about 120 km², both in the central platform and near the eyelash, there are numerous sub-circular reliefs of height ranging from 2 to 10 m and maximum diameter of 150 m, classified as sediment volcanoes, showing alignments with NNO-SSE direction. In the southern part of the sheet there is a more developed canyon whose edges are located small crater depressions (diameter between 10 and 30 m and depth of about 1 m). Such depressions are likely linked to the leakage of fluids from sandy cliniostratified beach/delta bodies formed during the last glacial maximum. The ejection of fluids corresponds to the distribution of the sandy facies and it is assumed that the fluids come from within this surface deposit and not from deeper deposits. No critical points have been identified.CNR-ISMAR.