Table 1. —Chemical and physical properties of bottom sediments 

 by stations 



Station 3I 31 31 



Cruise 2 I*- 7 



Sample No. 206 30 665 



Latitude N. 31°00» 31°00« 31°00» 



Longitude W. 79°59' 80°00' 80°00« 



Depth (meters) 5I 5I1 55 



Date (mo., day, yr.) 4-28-53 10-16-53 6-27 -5J+ 



Sediment O^e Sa Sa Sa 



Loss on Ignition, ^ 6. 16 5.51 6.25 

 Insoluble Residue, ^ 87.56 88.1^3 86. O7 

 AI2O3. "P 0.08 0.09 0.11 



0.32 

 0.00 0.10 



0.51 



Fe203, ^ 0.21 0.25 



MnO, ^ 0.00 0.00 



^^^ J 0.1+8 0.54 ..^^ 



S^°' J 6.13 5.93 6.87 



^"' ^ 0.02 0.05 0.06 



^20^, lo . 1.06 3.18 2.18 



Sr, ^ 



0.19 0.23 0.17 



^^> ^ _, 0.15 O.i+3 0.50 

 Organic Nitrogen, % 0.002 

 Organic Carbon, ^ 065 



CaC03, ^ 11^; 6 



Gravel, <f> 1^13 2.8O I.77 



Sand, J 58.1+1 96.74 98.23 



^?-"-' J 0.1+6 0.1+6 0.00 



Clay, ^ 0.00 0.00 0.00 



Median Diameter (mm) o.l+2 0.1+6 0.M+ 



Sorting (Trask) o!89 l!oO o!78 



0.58 



First q^artile ^ram^ 



Third Quartile (mm) 5' 32 



Sieve Weight, 5^ (mu) 



+ 2000 



+ 1000 



1.13 2.80 1.77 



I+.96 6.99 4.61+ 



■*■ 500 27.72 31.1+1+ 27.90 



'^ ,1^ 54.1+9 45.77 56.39 



: -^J 10.19 11.58 9.13 



"^ ?X 1-05 0.96 0.17 



u ~ y.. . ni 0-^6 0.46 0.00 



Heavy Mineral, % 28 



Light Mineral, ^ qq'v? 



BiOCl^StiC, ^ ^^;^ gj^ gj^ 



50 



