DESCRIPTION OF SAMPLES 

 on cruise Vn of the Carnegie in the Pacific — Continued 



25 



Sampler 

 and con- 

 tainer used 



Field notes 



Nearest previous samples 



Ross snapper; Snapper not closed but brought up 

 18-oz. bottle good specimen of gray mud and 



and 2 vials ooze 



None 



Ross snapper; 

 18-oz. bottle 

 and 2 vials 



Ross snapper; 

 vial 



Ross snapper; 

 18-oz. bottle 

 and 2 vials 



Ross snapper; 

 18-oz. bottle 

 and vial 



Jaws not closed but sample stuck 

 on inside; blackish-green mud 



Snapper failed to close, but thim- 

 ble full of blue -green mud was 

 found back of tongue 



Snapper failed to close, but good 

 amoimt of grayish clay came up 

 in both jaws 



Snapper failed to close again, but 

 brought up good sample 



Ross snapper; 

 18-oz. bottle 

 and 2 vials 



Snapper no. 5, made in Callao, 

 Peru, used. White ooze 



Albatross 4672 (p. 47); 13° 11.6' S, 78° 18.3' W. 

 2845 fathoms. Red clay or blue mud; CaC03=zero 

 per cent; nearly 50 per cent fine minerals, 0.01- 

 mm diameter; angular quartz grains, green chlo- 

 rite, decomposed feldspar, augite, hematite, horn- 

 blende (?), some sponge spicules and diatoms; 

 gray flocculent clay 



Albatross 4671 (p. 47); 12° 06.9' S, 12° 28.2' W. 

 1490 fathoms. Blue mud; CaC03=zero per cent; 

 fine greenish-colored clay, containing many very 

 minute mineral particles, 0.01-mm diameter, and 

 diatoms. Quartz, glauconite, little feldspar, 

 magnetite, and hematite 



None 



Albatross 4658 (p. 46); 08° 29.5' S, 85° 35.6' W. 

 2370 fathoms. Red clay; CaC03=zero per cent; 

 many genera of arenaceous foraminifera, manga- 

 nese nodules, sharks' teeth, cetacean ear bones; 

 small grains of manganese and iron oxide; scarce 

 plagioclase, augite, magnetite, hematite; 95 per 

 cent dark gray clay with few undeterminable min- 

 eral particles and diatoms 



None 



Ross snapper; 

 2 vials 



Snapper closed but most of loose 

 white ooze had washed out 



Albatross 4705 (p. 59); 15° 05.3' S, 99° 19' W. 2031 

 fathoms. Globlgerina ooze; CaC03=78.62 per cent; 

 82 species of pelagic and benthonic foraminifera 

 observed; traces of siliceous organisms and the 

 following minerals: basic labradorite, pyrite, 

 decomposed femic mineral, augite?; 21 per cent 

 rich red-brown colored flocculent clay 



Sample 34. Coarser material consists of skeletons of radiolaria, diatom frustules, sponge spicules, few 

 pelagic and benthonic foraminifera, brown disk-shaped pellets, plant material and small mineral parti- 

 cles. The considerable amount of clayey material is very low in magnesium and calcium. One entire 

 skeleton of a small crustacean was seen. 



Sample 35. Sand grades consist of brown and light-colored (coprolitic?), disk-shaped and ellipsoidal pel- 

 lets of fine material, together with abundant siliceous remains, common manganese grains, also fine- 

 grained igneous rock, palagonite, angular quartz, and plagioclase. 



Sample 36. Although this sample is high in calcium carbonate and in pelagic foraminifera (consequently 

 very light in color), about 50 per cent of shells of foraminifera are broken sand grades. Also contains 

 a few benthonic and arenaceous foraminifera, ostracods, echinoid spines, fish teeth, radiolaria, sponge 

 spicules, manganese grains, and somewhat decomposed plagioclase feldspar. The tests of Globorotalia 

 exhibit recrystallization. 



Sample 37. Appears to have been partly washed, as it is very low in fine material. Consists almost en- 

 tirely of pelagic foraminifera, alxiut three-fourths of which are unbroken. 



