Fig. 4: Water column backscatter data (echograms) with the discovered gas seeps in the Gulf of Oman.
From: Evidence of pockmarks and seafloor gas venting in the northwestern Arabian Sea
a An echogram from the wideband echosounder data (at 18 kHz) showing evidence of fluid escaping from the seafloor, gas bubbles, over almost flat bathymetry. b An echogram showing several gas seeps over rugged bathymetry.
