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Figure 120. Well site D/E-1 (from Dustan et al., 1991). (A) Map of biological communities was derived from a census assessment along eight transects radiating from the main (>100) cement-bag pile (large black dot). Smaller pile of 8 to 10 bags lay northeast of the main pile. Well E-1 was thought to be under the main pile and well D under the pea-gravel drill pad south of E-1. Mostly exposed Pleistocene bedrock populated by gorgonians, sponges, and scattered corals surrounded the drill sites. Sea grasses grew in local sediment-filled depressions throughout the area. (B) Pea gravel and/or sediment thickness (in cm) was determined from probes taken along the radial-transect lines. Area near the center was >150 cm thick. Small bulls eye southwest of site was a local sediment-filled bedrock depression.

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