“…The stratigraphy was profiled using seismic reflection (chirp) systems. For complete details on the data acquisition and processing, see DeWitt et al, (2012DeWitt et al, ( , 2014, Forde et al (2011), Pendleton et al (2010, Pfeiffer et al (2011), andTwichell et al (2011). Survey lines for most of the study area were spaced 100-150 m apart in waters less than 10 m, and 300 m in deeper waters, parallel to the island shoreline.…”