Table 1. --Chemical and physical properties of 'bottom sediments 

 by stations 



Station 55 55 55 



Cruise 2 k ^ 



Sample No. 16 k9k k36 



Latitude N. 33°17' 33°l8« 33°l8» 



Longitude W. 78°38« 78°38' 78°38« 



Depth (meters) l8 l8 l8 



Date (mo., day, yr.) 5-8-53 IO-27-53 2-16-5^ 



Sediment Type Sa Sa Sa 



Loss on Ignition, ^ I.27 l.k2 0.99 



Insoluble Residue, ^ 96.65 97-20 98.37 



AI2O3, i> 0.02 0.09 0.01 



Fe203, ^ 0.23 0.15 0.35 



MnO, ^ 0.00 0.00 0.00 



MgO, ^ 0.11 O.2I1 0.19 



CaO, i> 0.87 I.OI+ 0.60 



K2O, ^ 0.01 0.02 0.00 



P2O5* /^ 0.00 0.00 0.00 



Sr, ^ 0.00 0.00 0.00 



ci^ i> . 0.25 0.37 0.38 



Organic Nitrogen, 'f> O.OO8 O.OO5 



Organic Carbon, ^ 0.120 O.OU6 



CaC03, ^ 5.6 Y.6 



Gravel, <f, ^M O.73 2.20 



Sand, J 96,2.3 98.87 97.70 



Sil't^ J O.l+O 0.1^0 0.10 



Clay^ ^ 0.00 0.00 0.00 



Median Diameter (ram) 0.51 0.37 0.6^^ 



Sorting (Trask) 1*06 o!9l4- o!93 



First Quartlle ^ram^ ' o!51 0.88 



Third Quartlle (ram) 0*25 k3 



Sieve Weight, ^ (mu) 



+ 2000 3^1^.^ 0.73 2.20 



+ 1000 3j_,28 5.18 22.73 



+ 500 3-^,20 20.09 39.99 



+ 250 -^j^^Qrj kQ.Q2 30.02 



+ ^5 11.83 23.65 ^.^1 



^ g 0.95 1.13 0.55 



" ^ . 0.1+0 O.lK) 0.10 



Heavy Mineral, f» O.lli- 0.13 



Light Mineral, ^ 99.66 99! 87 



Bloclastlc, ^ gjj QYi Sh 



67 



