METEOR M143

Recent findings from MSM-34 seismic data showed that mass transport deposits did occur with up to 600 km3 volume within the Danube Delta, Black Sea. The deposition sequences do influence the continuation of vertical gas migration pathways and may cut them off preventing active methane gas release at the seafloor. Data from the Bulgarian margin did show that vertical gas migration outside the gas hydrate stability zone form elongated seafloor depressions weakening the sediment layers and developing into headwalls of future slope failures. Cruise M-143 SLOGARU aims to investigate possible areas of seafloor depressions and slope failure along the shallow part of the Black Sea margin in the Danube Delta by bathymetry mapping and water column observation.


Working area of cruise M143