Side-scan sonar data
Location | Sonar | Sediments
Profile | Cross Section

Projection: UTM, GRS 1980, NAD83, Zone 17. Coordinates: Geographic.
Bathymetry (areas > 4 m) after Gelfenbaum and Guy (1999).
Coastal areas (< 4 m) represented by Digital Orthophoto Quarter Quadrangle (1995).

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Location Map
Surface Sediments
Seismic-Profile Data
Transect Cross Section
Side-scan sonar imagery reveals more extensive sediment cover in the nearshore area of the transect and little sediment cover over bedrock offshore. Low backscatter (light gray) areas correspond to sand cover. The sand-ridge morphology typical off Indian Rocks Beach to the north is not evident here. The dark areas (high backscatter) are more extensive in the offshore portion of this transect and correspond to a coarse sediment veneer with increased carbonate material (primarily shell material) or some hardbottoms.