Table 3. Synoptic table of bottom samples collected 

 For discussion see footnotes on 



Sam- 

 ple 



Sta- 

 tion 



Date 



Position 



and 

 depth in 

 meters 



Type of sample 



Estimated 

 CaCOs con- 

 tent in per 

 cent; basis 

 of estimate 



Color and physical characters 



1928 

 10 37 Nov. 1 



11 40 



12 42 



13 



5 59 N 

 82 56 W 

 3324 m 



1 32 S 

 82 16 W 

 1344 m 



1 32 S 

 93 10 W 

 3539 m 



Green (coprolitic) 

 mud 



Volcanic gravel 



Siliceous globiger- 

 ina ooze ? 



3; acid solu- 

 ble CaO 



5; inspection 



30; inspection 



(Wet) grayish-olive 21^(0-YY) 

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

 rounded grains; moderately co- 

 herent, slippery, granular 



(Dry) from near deep mouse-gray 

 155i(Y-0) to pinkish-buff 

 172d(0-Y) 



Angular rock fragments; (Went- 

 worth class = sandy gravel) 



(Dry) tilleul-buff 173f(0-Y) 

 Clay; few shells of foraminifera; 

 slightly coherent, pulverulent 



13 43 



14 



44 



15 



17 



15 



46 



21 



2 30 S 

 95 43 W 

 3352 m 



9 06 S 



108 20 W 



2905 m 



Siliceous globiger- 

 ina ooze 



Volcanic globiger- 

 ina ooze 



67; total CO2 (Moist) buffy-brown 173i(0-Y) 



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

 small shells of foraminifera; 

 moderately coherent, slightly 

 plastic, crumbly, granular 



(Moist) between sayal-brown and 

 tawny-olive 162i(Y-0, O-Y) 



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

 small shells of foraminifera; 

 moderately coherent, slightly 

 plastic, crumbly, granular 



80; inspection (Wet) avellaneous 173b(0-Y) 



Silty sand; small shells of fora- 

 minifera; incoherent, granular 



16 47 



23 



17 



49 



27 



14 07 S 



111 50 W 



3080 m 



23 16 S 



114 45 W 

 3098 m 



Ferruginous glo- 

 bigerina ooze 



Ferruginous (vol- 

 canic) globigerina 

 ooze 



87; acid solu- 

 ble CaO 



74; acid solu- 

 ble CaO 



(Dry) Saccardo's umber 

 172k(0-Y) 



Clayey sand (U.S.B.S. class = 

 clay); small shells of foramini- 

 fera; slightly coherent, crum- 

 bly 



No material available as entire 

 sample was used in mechanical 

 analysis. (U.S.B.S. class = clay) 



Sample 10. Contains over 5 per cent organic matter, nearly 2 per cent Mn02, and relatively high Zr02. 

 Constituent particles of sand size include abundant dark grayish-green elongated ellipsoidal aggregates 

 about 0.3 mm in diameter, probably coprolitic pellets (see Murray and Philippi, 1908, p. 103, pi. XX, and 

 Moore, 1933, p. 24); together with a few broken pelagic and bottom foraminifera, echinoid spines, abun- 

 dant radiolaria, sponge spicules, very common manganese grains, brown mica (-2E large), quartz, green- 

 brown hornblende, augite, epidote, plagioclase feldspar, basic volcanic glass, and small rhombohedral 

 calcite crystals. 



Sample 11. Consists principally of angular fragments of altered volcanic material and iron concretions 

 greater than 0.5 and less than 8 mm in diameter, partly encrusted with worm tubes; together with a few 

 pelagic foraminifera, sponge spicules, wood fibers, but no mud. 



Sample 12. Contains abundant fragments of radiolarian skeletons, diatom frustules, and sponge spicules in 

 addition to foraminifera, but only small amounts of clay minerals. 



258 



