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Figure 129. (A) Index map shows tracklines (red) of USGS seismic data acquired in the lower Florida Keys/Gulf of Mexico area and those portions selected (bold black) for illustration with their figure numbers (modified from Lidz et al., 2003). Shelf-margin contour is in blue; contours are in meters. (B) Closeup of seismic tracklines in the Marquesas-Quicksands ridge area (Fig. 130; from Shinn et al., 1990). Bold sections of tracklines indicate areas of pictured seismic data, as shown in (B). Most tick marks on tracklines are at 5-min intervals. Dashed lines indicate travel time without data collection. SOL = start of line. EOL = end of line. V = vibracore site.

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Coastal & Marine Geology Program > Center for Coastal & Watershed Studies > Professional Paper 1751