DESCRIPTION OF SAMPLES 

 on cruise VII of the Carnegie in the Pacific --Continued 



29 



Sampler 

 and con- 

 tainer used 



Field notes 



Nearest previous samples 



Ross snapper Good sample; coffee-colored None 



18-oz. bottle ooze 



and vial 



Ross sniper; 

 vial 



Ross snapper; 

 vial 



Snapper closed; hard bottom, few 

 manganese nodules; no trace of 

 ooze 



Snapper not closed, but brought 

 up small amount of reddish- 

 brown clay-ooze 



Ross snapper; 

 vial 



Sigsbee tube; 

 12-oz. bottle 



Sigsbee tube; weight detached; 

 chocolate mud and ooze 



Sigsbee tube; 

 12-oz. bottle 



Small sample chocolate ooze 



Albatross 37 (p. 95); 18° 08' S, 141° 49' W. 2187 

 fathoms. Globigerina ooze; CaC03=74.2 per cent. 

 Pelagic and benthonic foraminifera, echinoid 

 spines, ostracods, alcyonarian spicules, coccoliths, 

 rhabdoliths, tunicate spicules, siliceous organisms, 

 obsidian, feldspar, augite, magnetite, manganese 

 grains; single and aggregate crystals of phillipsite 



Albatross 34 (p. 94); 17° 10' S, 145° 19' W. 1679 

 fathoms. Globigerina ooze. CaC03=84.3 per cent. 

 Pelagic and benthonic foraminifera, echinoid 

 spines, ostracods, otoliths, tunicate spicules, coc- 

 coliths, rhabdoliths; few remains of radiolaria, 

 sponge spicules; small angular grains of plaglo- 

 clase, obsidian, chloritized hornblende, magnetite 



Penguin 331. Murray (1906, p. 132); 14° 49.4' S, 

 171" 51.9' W. 2532 fathoms. Red clay or volcanic 

 mud; CaC03=5 percent. Small pelagic foramini- 

 fera; 50 per cent small pumice particles, 10 per 

 cent radiolaria, sponge spicules, diatoms; 35 per 

 cent brown "amorphous" matter and minute 

 mineral particles 



Egeria 47. Murray (1906, p. 131); 07° 52' S, 171° 

 01.5' W. 2766 fathoms. Red clay; CaCOs not 

 determined. Few fragments of pelagic foramini- 

 fera and fish teeth, pumice fragments and man- 

 ganese grains, sponge spicules, radiolaria, 

 diatoms; dark brown or chocolate color. "Fine 

 washings," 77 per cent 



Tuscarora . Dec. 25, 1875. Murray (1906, p. 127); 

 03° 21' S, 171° 23' W. 2835 fathoms. Globigerina 

 ooze (with many radiolaria); CaC03=42.1 per cent. 

 Mostly fragmentary pelagic foraminifera; numerous 

 coccoliths, few tunicate spicules, much crystalline 

 and "amorphous" calcareous matter, 25 per cent 

 remains of siliceous organisms, a few manganese 

 grains, palagonitic and glassy volcanic particles 



volcanic glass, pumice, palagonite, small manganese grains, plagioclase feldspar, augite, euhedral 

 hypersthene (?), magnetite (?), birefringent clay minerals (?) and unidentified, small mineral particles. 



Sample 49. One distinction of the sand grades of this sample is the presence of an extraordinary number 

 of fish teeth and chitinous fragments. Sponge spicules, radiolaria, and both benthonic and pelagic fora- 

 minifera are other common organic constituents. Another feature is the presence of many compact, ir- 

 regularly rounded particles probably of altered pumice, containing palagonite, augite, and unaltered 

 plagioclase feldspar, together with much isotropic material. In addition, brownish, ovoid aggregates 

 probably formed during mechanical analysis are present, as well as manganese grains. 



Sample 50. Too small for mechanical analysis. Contains arenaceous foraminifera, fish teeth, pelagic 

 foraminifera, radiolaria, sponge spicules, diatoms, unidentified calcareous fragments, biotite, manga- 

 nese grains and flakes, basic volcanic glass (some grains of which are slightly birefringent), palagonite, 

 a euhedral augite crystal, penninite (?), brown-colored clay mineral showing moderate birefringence, 

 negative elongation. Indices of refraction about 1.565, large 2E. 



