The characterization of marine gas hydrates from geophysical data has evolved significantly over the past decade. For many years, marine gas hydrate interpretation was largely limited to a determination as either “likely present” or “likely not present” based on the presence or absence of “bottom simulating reflections.” However, recent findings of drilling programs offshore Japan (Tsuji et al., 2004), the United States (Riedel et al., 2010; Boswell et al., 2012), Korea (Ryu et al., 2013) and India (Collett et al., 2014) indicate a wide range of potential gas hydrate occurrences and...

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