Table 1. — Chemical and physical properties of bottom sediments 

 by stations 



Station 10 10 IQ iq 



Cruise 2 1(- 5 6 



Saii5)le No. 282 ll8i^ 509 Slk 



latitude N. 28°l8' 28°20' 28°19' 28°20' 



Longitude W. 80°10' 80°10' 80°12' 80°10' 



Depth (meters) 35 38 31 38 



Date (mo., day, yr.) l|-2l<-53 IO-13-53 2-1-514- ^--2^-^ 



Sediment 'Type gt Sa Sa 3a Sa 



Loss on Ignition, ^ 38.35 39.35 36.09 38.16 



Insoluble Residue, f, u_.2i 9.12 19.68 13.O9 



AI2O3, J 0.18 0.28 0.19 0.51 



^^203^ * 1.^ 1.58 1.16 1.35 



^0^ J 0.09 0.07 0.07 0.29 



"8^' J 1.63 1.98 1.92 I.7U 



^^^' J 14-7.58 21^.33 ^5.73 14-7.02 



^^> f>. 0.25 0.21 0.20 0.18 



^205^ 'P 10.81 k.lk 5.82 5.95 



S^> J 0.1+2 O.I46 0.1+4 0.67 



^1' * . 0.61 0.1+7 0.63 0.50 



Organic Nitrogen, f) 0.011 



Organic Carbon, ^ o!325 



CaC03, i> 35^3 



Gravel, <f> 18.23 l.hk 2.16 3.36' 



lf^^> J 78.22 91.71 97.36 9^.1+1+ 



°^1*> J 3.55 0.85 0.1+8 2.20 



Clay, ^ Q^QQ Q^QQ 0.00 0.00 



Median Diameter (ram} q^i^^ q^^^ q^33 o.l+O 



Sorting (Trask) ^^55 1,29 1.17 1-^2 



First Quartile 



(mm^ 

 (mm) 



0.93 



Third Quartile (mm) 3? 



Sieve Weight, ^ (mu) 



+ 2000 



18.23 l.kh 2.16 3.36 



^ ^?^ 15.93 15.1^ 7.68 10.09 



+ ^00 15,83 26.12 17.12 25.80 



t ?^° 19. i+^ 37.05 33.81+ 36.13 



"^ -4^ 18.69 11.13 33.30 16.57 



+ 62 

 - 62 

 Heavy Mineral, ^ 



8.33 2.27 5.^2 5.85 



3.55 0.85 0.1+8 2.20 



O.OI+ 



Light Mineral, ^ 00*0^ 



BlOClaStlC, i gj^ g^ Q^ Q^ 



34 



