Abstract

The estimation of Q is important for qualifying whether a BSR is related to gas hydrates and free- gas. This property is also useful for identifying gas hydrates where detection of BSR is dubious. Here, we calculate the interval Q for three submarine sedimentary layers bounded by seafloor, BSR, one reflector above and another reflector below the BSR at three locations with moderate, strong and no BSR along a seismic line in the Makran accretionary prism for studying attenuation (Q-1) characteristics of sediments. Interval Q for hydrate-bearing sediments above the BSR are estimated as 191