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Dekomponeret
af
Saltsyre
30.40 pCt.
Udekomponeret
af
Saltsyre
08.00 pCt.
Glødningstab . . 2.48
Jernoxydul . . . . 1.19
Jernoxyd .... 4.92
Lerjord .... 2.46
Kalk.....1.08
Magnesia. . . . 1.80
Kulsur Kalk . . 12.20
Fosforsyre . . . Spor
Kiselsyre. . . . 6.75
Jernoxyd.... 2.34
Lerjord .... 13.44
Magnesia.... 1.50
Kiselsyre .... 50.72
Sum 100.88
Samlede Bestanddele:
FeO Fe203 A1,03 CaO MgO CaC02 P205 Si02
1.19 7.26 15.90 . 1.08 3.30 12.20 Spor 57.47
Glødn.tab Sum
2.48 100.88
Loss by ignition . 2.48
Protoxide of iron . 1.19
Sesquioxide of iron 4.92
Alumiua .... 2.46
Lime.....1.08
Magnesia.. . . . 1.80
Carbonate of lime. 12.20
Phosphoric acid Traces
Silica.....6.75
Sesquioxide of iron 2.34
Alumina .... 13.44
Magnesia.... 1.50
Silica.....50.72
100.88
Constituents of Sample: —
FeO Fe203 A1203 CaO MgO CaC02 P205 SiO,
1.19 7.26 15.90 1.0S 3.30 12.20 Traces 57.47
Loss by .Ignition.
2.48 = 100.88.
Station 351.
Station 351.
N. B. 77° 49’. V. L. 0° 9’. 1640 Favne (2999
Meter). — 1.5°. Mørkbrunt Biloculinler. Mange
Foraminiferer. overveiende Globigeriner. Ivun faa af Slægten
Lituola.
Lerets specifiske Vægt var 2.77.
Dekomponeret
af
Saltsyre
41.72 pCt.
Udekomponeret
af
Saltsyre
:>4.20 pCt.
Glødningstab . . 4.56
Jernoxydul . . . 1.25
Jernoxyd.... 4.06
Lerjord .... 3.28
Kalk.....0.12
Magnesia.... 2.05
Kulsur Kalk . . 23.66
Fosforsyre . . . .Spor
Kiselsyre. . . . 7.30
’ Jern oxyd. . . . 2.46
Lerjord .... 13.33
Magnesia.... Spor
Kiselsyre .... 38.41
Sum 100.48
Samlede Bestanddele:
FeO Fe20.t A1203 CaO .MgO .CaC03 P,()j Si02
1.25 6.52 16.61 0.12 2.02 23.66 Spor 45.71
Glødn.tab Sum
4.56 100.48
Lat. 77° 49’ K. long. 0° 9’ W.; 1640 fathoms(2999
metres): bottom-temperature - 1.5°. Dark-brown
Biloculina clay containing a great many Foraminifera. chiefly
Globigerinæ; but very few belonging to the genus Lituola.
Specific Gravity of Clay 2.77.
Loss by ignition . 4.56
Protoxide of iron . 1.25
Sesquioxide of iron 4.06
Alumina .... 3.28
Lime ..... 0.12
Magnesia.... 2.05
Carbonate of lime . 23.66
Phosphoric acid Traces
Silica ...... 7.30
Decomposed
by
Hydrochloric acid
41.72 per cent.
T’ndecomposed
by
Hydrochloric acid
54.20 per cent.
Sesquioxide of iron 2.46
Alumina .... 13.33
Magnesia . . . Traces
Silica.....38.41
100.48
Constituents of Sample: —
FeO Fe203 A1,03 CaO MgO CaC03 P,.05 SiO,.
1.25 6.52 16.61 0.12 2.02 23.66 Traces 45.71
Loss by Ignition.
4.56 = 100.48.
Principally by reason of the variable amount of lime
in Biloculina clay, the proportion of deposit decomposed
Væsentlig som en Følge af Biloculinlerets vexlende
Kalkgehalt viser det sig ved de foregaaende Analyser, at
Decomposed
by
Hydrochloric acid
30.40 per cent.
Undecoinposed
by
Hydrochloric acid
6&00 per cent.
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