e. Total Carbon . The amount of total carbon in the surface* 

 sediments of this nearshore zone was low. The percentage of the total 

 sample weight for each sample ranged from 0.010 to 1.761 percent, with 

 80 percent of the stations having a percentage of total carbon below 

 0.151 percent (Fig. 13). 



The average percent of the total sample weight at all transect 

 stations was 0.129. The highest averages were at stations 2 and 5; 

 station 4 had the lowest average (Table 9) . The average weight percent 

 of total carbon at stations A and B in 30 feet of water was 0.133 

 (Table 10). 



The distribution of total carbon on the nine transects indicated a 

 gradual decrease from east to west. The average values on transects 

 1, 2, and 3 was 0.173 percent; transects 4, 5, and 6 had an average of 

 0.131 percent, and transects 7, 8, and 9 averaged 0.083 percent 

 (Table 11). 



f • Organic Carbon . The amount of organic carbon in the surface 

 sediments was low. The percent of the total sample weight for each 

 sample ranged from 0.005 to 0.208, with over 92 percent of the stations 

 having values below 0.100 percent (Fig. 14). 



The average value of organic carbon on each of the five transect 

 stations ranged from 0.44 to 0.50 percent. Sediments at station 1 had 

 the highest value of organic carbon (Table 9) . Average values at 

 stations A and B were slightly higher than at stations located on the 

 nine transects (Table 10). 



The distribution of organic carbon on the nine transects followed 

 the same pattern as total carbon, i.e., the values decreased from east 

 to west along the beach. The average value on transects 1, 2, and 3 

 was 0.058 percent; transects 4, 5, and 6 had an average of 0.045 

 percent, and transects 7, 8, and 9 averaged 0.040 percent (Table 11). 



g. Carbonate . The amount of carbonate in the surface sediments 

 was very low. The range of the percentage of the total sample weight 

 for each sample was 0.000 to 1.697 percent with almost 92 percent of 

 the stations having carbonate values below 0.200 percent (Fig. 15). 

 Only two samples had carbonate values above 1 percent. 



The average value of carbonate on each of the five transect 

 stations ranged from 0.051 to 0.106 percent. Carbonates were highest 

 at stations 2 and 5, and the lowest at station 4 (Table 9). At 

 stations A and B, the level of carbonate in the samples was about the 

 same as the stations located on the transects (Table 10). 



34 



