Supplement to: Tamborrino, Leonardo; Himmler, Tobias; Elvert, Marcus; Conti, Daniel; Gualtieri, Alessandro F; Fontana, Daniela; Bohrmann, Gerhard (2019): Formation of tubular carbonate conduits at Athina mud volcano, eastern Mediterranean Sea. Marine and Petroleum Geology, 107, 20-31, https://doi.org/10.1016/j.marpetgeo.2019.05.003