Table 3. Synoptic table of bottom samples collected 



Sam- 

 ple 



Sta- 

 tion 



Date 



Position 



and 

 depth in 

 meters 



Type of sample 



Estimated 

 CaC03 con- 

 tent in per 

 cent; basis 

 of estimate 



Color and physical characters 



81 



156 



(Moist) partly pinkish-buff 

 172d(0-Yl; partly Saccardo's 

 umber IV^kio-Y). Sample has 

 two colors but both parts have 

 same physical characters 



Silty clay (U.S.B.S. class = clay); 

 small shells of foraminifera 

 and radiolarian tests; moder- 

 ately coherent, sticky, greasy 

 feel 



82 



157 



83 



158 



1 48 S 

 152 22 W 

 4693 m 



6 33 S 



154 58 W 



4065 m 



Siliceous globig- 

 erina ooze 



Globigerina ooze 



85; acid (Dry) pale pinkish-cinnamon 



soluble CaO 152f(Y-0); (moist) vinaceous- 

 buff 173d(0-Y) 

 Sandy clay (U.S.B.S. class = clay); 

 shells of foraminifera and radi- 

 olarian tests; when moist, 

 slightly coherent, crumbly; 

 when dry, moderately coherent, 

 pulverulent, gritty 



90; inspec- (Wet) between tilleul-buff and 



tion white 173g(0-Y) 



Sand; all foraminifera shells and 

 manganese grains; incoherent 



84 159 



85 160 



11 



13 



Red clay 



Globigerina ooze 



<5; inspec- (Dry) mummy-brown 17^m(0-Y) 



tion Clay; coherent, brittle 



94; acid (Dry) pale pinkish-cinnamon 



soluble CaO 152f(Y-0); (moist) between vi- 

 naceous-buff and avellaneous 

 173c(0-Y) 

 Clayey sand (U.S.B.S. = clay); 

 shells of forun:inifera; slightly 

 coherent; when moist, crumbly, 

 granular; when dry, crumbly 



86 161 



15 



12 04 S 



164 57 W 



4484 m 



87 162 



17 



13 36 S 



168 23 W 



5124 m 



Sample 81. Sand grades consist almost entirely of remains of foraminifera, radiolaria, and other calcare- 

 ous and siliceous organisms, including sponge spicules, arenaceous foraminifera, diatoms, echinoid 

 spines, and fish teeth, but a few manganese grains are also present. Pronounced recrystallization is 

 evident in tests of Globorotalia tumida. Eighty-five per cent of the tests of pelagic foraminifera are 

 broken. 



Sample 82. Many species of calcareous and arenaceous benthonic foraminifera; also radiolaria, diatoms, 

 sponge spicules, fish teeth, echinoid spines, ostracods, are present in sand grades in addition to mostly 

 broken tests of pelagic foraminifera, the latter exhibiting .some recrystallization, and coccoliths. Inor- 

 ganic constituents of sand size include manganese grains, fine-grained igneous rock fragments, plagio- 



278 



