100 to 120 feet in depth the hard outer platform departs from its 

 gentle seaward slope. There it assumes a dip between 30° and 40° 

 which terminates at 120 feet where a terrace approximately 150 

 feet wide extends to 130 feet depth at the top of the rim escarp- 

 ment (Plate 3). The face of this escarpment is discussed on page 24, 



SALVADOR POINT (SITE 2) 



Site 2 is located 16 miles south of Site 1 and 35 miles south- 

 southwest of New Providence Island. The shoreward cable termination 

 is at latitude 24*'29'25"N., and longitude 77°43'9.28"W. This 

 co-ordinate is 250 yards inland of the high water line and 

 approximately 500 yards north of the settlement of Cargill's 

 Creek . 



Backshore area of Site 2 consists of a 6 foot sand dune which 

 slopes at approximately 7° to the high water line (Plate 4). The 

 sand is medium-coarse grained calcarenite which overlies, in 

 excess of 3 feet at the crest, a well -indurated beach rock. The 

 beach face terminates abruptly at the low tide terrace and is 

 replaced by a hard limestone dipping gently (2-3°) seaward. 

 Beachrock comprising the low tide terrace is well lithified and 

 sculptured with depressions and cavities a few inches deep and 

 over 1 foot across. The low tide terrace terminates approximately 

 350 feet seaward of the beach face (marking the limit of Mean Low 

 Water) . A few hundred feet seaward of the foreshore termination 

 the bottom consists of a mixed community of small corals, calcareous 

 algae, and sea fans growing on submerged beachrock. This mixed 

 community diminishes 200 feet seaward of MLW and is replaced by a 

 medium-grained sand and grass association. A typical section of 

 the lagoon bottom off Salvador Point is shown in Plate 5. There 

 is little variation in the sand-grass association along the track 

 surveyed, and all indications suggest a stable bottom. Bathymetry 

 of the area from the shoreline to the break-in-slope is presented 

 in Figure 6. 



Near the barrier reef (Buoy 8) a large head supporting corals 

 and hydrocorals of the genera Diploria , Favia , and Millepora as 

 well as alcyonarians and other organisms appears (Plate 6). 

 This is the only departure from the sand-grass association. 



14 



